SABMAG 65 - Fall 2019 - The Passive House Issue by SAB Magazine

ISSUE NUMBER 65 | FALL 2019 | PM40024961 | $6

The PASSIVE HOUSE issue

LIVING LIBATIONS HEADQUARTERS Passive House in the realms of human wellbeing and ecological responsibility

DESIGNING FOR ACCESSIBILITY The Rick Hansen Foundation

VIEWPOINT Making building performance a selling point, and moving on from the glass tower

SABMag - FALL 2019

ROAD MAP TO NET ZERO READY 2030. Owens Corning’s Sustainable Building Enclosures For a Better Tomorrow.

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CANADA & QUEBEC Salvatore Ciarlo, P.Eng Architectural Solutions and Technical Services Manager, Canada 1.800.504.8294 salvatore.ciarlo@owenscorning.com

ONTARIO Tyler Simpson, B.Tech. Technical Sales Manager, Ontario 1.800.933.9892 tyler.simpson@owenscorning.com

WESTERN CANADA Luis Faria, B.Eng, PMP, CMgr MCMI Technical Sales Manager, Western Canada 1.833.258.5299 luis.faria@owenscorning.com

To learn more contact our Owens Corning Building Science Experts at www.specowenscorning.ca/contacttech GREENGUARD Certified products are certified to GREENGUARD standards for low chemical emissions into indoor air during product usage. For more information, visit ul.com/gg. UL Environment claim validations lend third-party credibility to single-attribute environmental claims. *73% recycled content is based on the average recycled glass content in all Owens Corning fiberglass batts, rolls and unbonded loosefill insulation manufactured in Canada. THE PINK PANTHER™ & ©1964-2019 Metro-Goldwyn-Mayer Studios Inc. All Rights Reserved. The colour PINK is a registered trademark of Owens Corning. © 2019 Owens Corning.

SABMag - FALL 2019

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INTERNATIONAL EXCELLENCE IN BUSINESS-TO-BUSINESS PUBLISHING

For more about the articles in this issue!

This issue published in association with:

Industry News, Products, Events 10 Living Libations Headquarters

Passive House in the realm of human wellbeing 16

Valleyview Town Hall New municipal building aims for Passive House Plus

CONTINUING EDUCATION The Ken Soble Tower

A Passive House transformation 27

FALL 2019

Fire safety in tall wood buildings By Jim Taggart

Designing for Accessibility

The Rick Hansen Foundation 40

Charter Telecom Headquarters Passive House a superior environment for employees

VIEWPOINT Moving on from the glass tower

Passive House on an upward curve Interview with Rob Bernhardt, Passive House Canada 32

ISSUE DON’T MISS NEXT WINTER 2020

ÚThe Rotunda

LEED Platinum-targeted mixed-use building inserts contemporary architecture into historic urban fabric

ÚMcEwen Graduate Study and Research Building Schulich School of Business, York University Climate responsive solar chimney only one part of a hybrid active/passive bioclimatic system

ÚAnnual Special Supplement: 2020 Directory of Products and Services for Sustainable Building Cover: The Passive House-certified Living Libations Headquarters. Photo: John Lehmann Photography. SABMag - FALL 2019

YORK UNIVERSITY SCHULICH SCHOOL, TORONTO One of the most environmentally sustainable and socially responsible academic buildings in North America.

Architect: Baird Samson Neuert Architects. Contractor: Ellis Don.

INLINE FIBERGLASS LTD. provided the bird-friendly, triple-glazed high-performance windows that contributed to achieve 71% energy savings and 67% in greenhouse gas emissions compared to Canadian Model National Energy Code reference building. The building is one of the first to use principles of Thermally Active Building Systems (TABS) to achieve LEED Gold certification. GRE E N B NG LD I UI

C A NA D I

AWARDS

2019

SPONSOR

CALL US TO DISCUSS YOUR NEXT PROJECT! lbidner@inlinefiberglass.com 4

SABMag - FALL 2019

1.866.566.5656, ext. 226

MEMBER/MEMBRE

Dedicated to high-performance building Member Canada Green Building Council

SABMag is a proud member and official media partner of the Canada Green Building Council.

THERE IS NO

PLANET ‘B’ This was perhaps the starkest message to be seen on the many signs carried by teenagers in the Climate Strike rally I took part in last month. Rather than teach my Sustainable Design class in a Downtown lecture theatre, I offered my students the opportunity of a very different field trip.

VISIT www.sabmagazine.com PUBLISHER Don Griffith 613-421-7588, dgriffith@sabmagazine.com EDITOR Jim Taggart, FRAIC 604-874-0195, architext@telus.net SENIOR ACCOUNT MANAGER Patricia Abbas 416-438-7609, pabbas@sabmagazine.com GRAPHIC DESIGN Carine De Pauw cdepauw@sabmagazine.com SUBSCRIPTIONS/CHANGE OF ADDRESS Lyse Cadieux, lcadieux@sabmagazine.com

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Amid a crowd of 100,000, a few were clearly focused on the Instagram moments rather than the climate crisis – but mostly it was otherwise. The informed and passionate speeches made by young people not yet old enough to vote, was compelling. Although none of my students spoke to the crowd, the ‘reflections’ they submitted to me afterwards were blunt and to the point. One of them observed; photo: Roy Grogan

“The choice between ‘in action’ and ‘inaction’ is all that it takes for a phenomenon to occur. People care – this isn’t just some phase or rebellious little event; this is people who are tired of not knowing whether their children will live to see a brighter future. This is about youth who are tired of being undermined and written off as less intelligent members of society. How is it that we’re smart enough to be taught Calculus, the laws of physics, be leaders in our school communities, yet not be smart enough to understand the state of the world, what is good and bad and the glaring facts that science has proven again and again about the troubles we are facing.” The solution could be conjured from a minestrone of small initiatives, as Paul Hawken argued in ‘In Drawdown’ – but where are the politicians actively implementing his recipe? As the young people at the Climate Strike clearly understood, they are being kept out of the kitchen. Hence the challenge, “Let’s do it now!” What does this mean for architects? With zero carbon and net positive buildings a reality, ‘inaction’ now means being satisfied with something less. Our mission is to close the gap between what is achievable and what we actually achieve. Yes, we owe this to our children, but we also owe it to ourselves.

Jim Taggart, FRAIC Editor

SABMag - FALL 2019

NEWS RAIC REPORT CANADIAN ARCHITECTS DECLARE PLEDGE CALLS FOR ACTION ON CLIMATE

The call to action includes:

The Royal Architectural Institute of Canada’s (RAIC) Committee on

• Design for holistic reductions in greenhouse gas emis-

Regenerative Environments is calling on Canadian architectural and

sions. Advocate for investments in a rapid transition to

design firms to commit to combatting the climate crisis by signing a

resilient climate-positive alternatives. Eliminate waste and

new Canadian Architects Declare pledge.

harm and support a quick transition to circular economies. • Design for holistic health, resilience, and regeneration;

The declaration, titled ‘Canadian Architectural Professionals Declare

respecting the rights and wisdom of Indigenous Peoples.

Climate and Biodiversity Emergency and Commit to Urgent and

• Adopt regenerative design principles and practices to

Sustained Action’, is a grassroots effort developed by architects across

design and develop projects and environments that go

the country and members of the RAIC Committee on Regenerative

beyond the standard of net zero in use.

Environments. It is based on the UK’s ‘Architects Declare’ initiative.

• Advocate for the rapid systemic changes required to address the climate and ecological health crises, as well as

“The design, construction, and operation of our built environment

the policies, funding priorities, and implementation frame-

accounts for nearly 40% of energy-related carbon dioxide emissions,

works that support them.

and pervasively impacts our societies and the health of the living systems that sustain us,” says the Canadian statement.

A companion document, ‘Designing for the Future’ (https:// raic.org/raic/designing-future) expands upon actions that

The declaration urges architects and designers to raise awareness of the

architects and designers can take.

impact of the built environment on climate change and take immediate action through their projects and roles as advisors, advocates, educators, and enablers.

LATEST SABMAG CASE STUDY: RJC ENGINEERS ON ENERGY MODELLING The latest SABMag one-page digital case ENERGY MODELLING determines conservation measures

at schematic design stage Buildings account for approximately 30% of total Greenhouse Gas (GHG) Emissions in Canada. As a result, Canada has pledged to reduce carbon emissions 30% below 2005 levels by 2030 under the Paris Climate Action Plan. As such, different provinces across the country are adopting more contemporary energy codes and standards to advance the energy performance of buildings towards the ambitious 2030 energy efficiency goals. For example, the Province of British Columbia and City of Toronto have adopted new stringent energy standards: the BC Energy Step Code and the Toronto Green Standard V3, respectively. These new standards have a passive house philosophy with the goal of “net-zero ready” buildings by 2030. Energy modelling and commissioning are now of crucial importance considering a building as an integrated system of structural, building enclosure, mechanical, and electrical elements. As advocates for sustainable design, RJC has conducted energy studies for existing buildings, whole building energy modelling for new constructions, and whole building air-tightness testing for a wide range of projects across Canada. RJC Engineers has helped clients to meet their energy and GHG targets for a variety of projects from commercial/institutional buildings to multi-unit residential towers for both new construction and existing buildings. As a case study, RJC Engineers was retained as structural, building envelope, and energy consultants for a new 15-storey high-rise concrete tower in Victoria. The project must demonstrate 15% energy and GHG emissions reduction over NECB 2015 baseline building. The energy modelling was performed at the Schematic Design stage to determine the energy conservation measures (ECMs) that must be implemented to synergize the thermal characteristics of the structural, enclosure, mechanical and electrical systems of the building.

The images are examples of the graphical output from modelling software (IES VE - https://www. iesve.com/), and convey the relationship of buildings to surrounding structures while taking into account solar effects on the building form and façade.

The developed ECMs include utilization of high-performance building enclosure assemblies (overall R-10+ effective), high-performance glazing systems with multiple low-e and hard coatings (as opposed to tripleglazing), energy recovery ventilators to supply fresh air, balcony slab to envelope area reduction, and highly efficient electrical systems. In addition, a comprehensive thermal comfort study was carried out, and several passive cooling strategies were determined to meet the thermal comfort criteria of the BC Energy Step Code.

study, ‘Energy Modelling determines conser-

DARTMOUTH WAREHOUSE FIRST INDUSTRIAL BUILDING IN THE COUNTRY TO BE CERTIFIED UNDER CAGBC’S ZCB STANDARD

vation measures at schematic design stage’,

East

by national engineering firm, RJC Engineers,

announced that 355 Wilkinson

Port

describes how energy modelling is of such

–

crucial importance at the schematic design

Warehouses in Dartmouth, NS –

stage to determine the energy conservation

has achieved the Canada Green

measures (ECMs) that must be implemented

Building Council’s Zero Carbon

to synergize the thermal characteristics of the

Building – Design certification.

part

Properties the

has

Wilkinson

structural, enclosure, mechanical and electri-

A part of the initial Zero Carbon

cal systems of the building. The developed

Pilot Program, 355 Wilkinson is the first industrial building in the

ECMs can touch on more than just the enve-

country to be certified under the ZCB Standard—and has the

lope but also HVAC and electrical systems, both passive and active. See

potential for tenants to achieve $0 on their heating bill. Given the

it at: https://sabmagazine.com/case-studies.

industrial asset class represents over two billion square feet of real

www.rjc.ca

estate across 11 Canadian markets, there is a remarkable potential for carbon savings to be had if more property owners follow East

PASSIVE HOUSE IN LANGLEY A DEMO FOR OTHERS

Port’s lead.

Over one quarter of Passive House projects in North American are located in BC, partly motivated by the desire to achieve the higher steps of the BC Energy Step Code. For a new single-family home in Langley, Innotech Windows + Doors introduced the Defender 88PH System, a Passive House Institute (PHI) certified window system. The homeowners prioritized functionality, comfort and sustainability in the charming 5,000 sq.ft. farmhouse which will house two families. The house uses Innotech PHI-certified windows with true triple glazing and Terrace Swing Doors with Guardian Vacuum IG glass, and has a R-76 net average roof assembly with blown cellulose and graphite-infused EPS. (Continues on page 8.) 6

SABMag - FALL 2019

ADS IN THIS ISSUE 2 4 7 9 15 19 21 22

Owens Corning Inline Fiberglass Schock Isokorb Structural Thermal Breaks Dekrail / Steenhof / Element5 EnerSign Windows and Doors Tech-Crete Sound Solutions Tempeff North America

35 39 45 48 53 55 56

Mitsubishi Heating and Cooling / Quadlock / Richelieu / Innotech Sustainable Forestry Initiative Euroline Windows and Doors Enbridge Gas CPCI Owens Corning Engineered Assemblies

Schöck Isokorb® Structural Thermal Breaks. Prevent condensation and mould, cut heat loss. ▶ Prevent condensation and mould ▶ Reduce heat loss by up to 90% ▶ Improve the effective R-value of your building envelope by up to 50% ▶ Increase warmth of interior floors by up to 19°C/34°F ▶ Most effective way to meet code requirements for continuous insulation

Uninsulated balconies, canopies, slab edges and parapets penetrating building envelopes create thermal bridging between the cold exterior and the warm interior structure that supports them, causing heat loss, condensation and mould. Isokorb® Structural Thermal Breaks prevent thermal bridging by insulating the building envelope at the penetration, while supporting loads equivalent to conventional concrete and/or steel structures, offering multiple benefits. Isokorb® Structural Thermal Breaks for concrete construction (above) contain engineered stainless steel rebar for casting into interior and exterior sides of the penetration. Isokorb® Structural Thermal Breaks for steel construction (left) bolt interior steel structures to cantilevered balcony supports, canopies or rooftop connections.

HH-0951

Schöck North America | +1 855 572 4625 | info@schock-na.com | www.schock-na.com SABMag - FALL 2019

NEWS Langley Passive House The house was the subject of the August Passive House Canada monthly educational event for green building enthusiasts in and around Vancouver. The event included a selfguided tour of the house and a presentation of its construction techniques and building materials, including a full-size mock-up of the

“For a private company to make

wall assembly.

the investment in zero carbon design shows incredible ambition and foresight. The key to com-

REPORT SHARES INSIDE STORY OF BC’S TRAILBLAZING ENERGY STEP CODE

pleting a project of this complex-

‘Lessons

ity is to work as an integrated

From the BC Energy Step Code’,

team. This specialised approach

The

recent

report,

explains how BC created a first-

and commitment from our client

in-North America building code

will result in a one-of-a-kind net zero facility that changes the stan-

designed to improve energy effi-

dard for this global company,” says Drew Hauser, Director at mcCal-

ciency and transform the market

lumSather.

towards the ultimate goal of netzero energy-ready performance.

NEW BOOK AN INDISPENSABLE GUIDE ON SOLAR ELECTRICITY BC-based New Society Publishers will soon

The Step Code is a section of the BC Building Code that local gov-

release the new book, Solar Electricity

ernments may use, if they wish, to require or incentivize builders to

Basics, 2nd ed: Powering Your Home or

deliver a higher level of energy efficiency performance in new con-

Office with Solar Energy by Dan Chiras,

struction projects.

Ph.D. a noted author of numerous books on renewable energy. The book offers a

The publication details the collaborative process that yielded the Step

concise and up-to-date guide covering all

Code in the hope that other jurisdictions will develop a similar code,

the essentials, such as:

and the 10 key lessons learned.

• How to size, cost, and choose the right system,

1. Pitch a Big Tent, and Embrace Shared Leadership

• Where to mount a system for best per-

2. Set Your End Game, then Backcast

formance,

3. Fear Not Your Local Governments

• Type of modules and inverters,

4. Provide Simple, Clear, and Accessible Materials

• How to install and maintain batteries,

5. Encourage Collective Ownership

• Cost vs benefit for solar electric systems, and

6. Identify and Tackle Cost ‘Pain Points’

• How to connect to the grid.

7. Offer an Easy On-Ramp to Performance Codes 8. Consider Elections and Seasonal Factors in your Roll-Out Plan 9. This is a Change-Management Process

Publisher: New Society Publishers (https://www.newsociety.com)

10. Continue to Refine and Improve the Standard Over Time ‘Lessons From the BC Energy Step Code’ is available via the Province of British Columbia’s dedicated BC Energy Step Code site at: energystepcode.ca, under Resources/Publications.

ENDRESS+HAUSER CANADA: THREE IN ONE CERTIFICATION A FIRST FOR A PRIVATE COMPANY IN CANADA Designed er,

the

new

mcCallumSath-

two-storey,

47,000

square-foot Customer Experience Centre in Burlington, Ontario for Endress+Hauser Canada will target net zero energy, the Zero Carbon Building Standard and LEED Gold through the Canada Green Building Council (CaGBC). This will make Endress+Hauser, a global leader in process measurement and instrumentation, the first private company in Canada to pursue all three certifications at once. Completion is planned for the fall of 2020.

SABMag - FALL 2019

$19.95, taxes and shipping extra. Paperback (6”x9”), 240 pages. ISBN: 9780865719255

THE RAIC AND CANADA COUNCIL FOR THE ARTS LAUNCH 2020 GOVERNOR GENERAL’S MEDALS IN ARCHITECTURE The Royal Architectural Institute of Canada (RAIC) and the Canada Council for the Arts invite architects to participate in the competition for the 2020 Governor General’s Medals in Architecture, one of the country’s most prestigious and coveted architectural awards. Awarded every two years, the 12 medals recognize and celebrate outstanding design in recently completed built projects by Canadian architects. Submission deadline: December 6, 2019 at 12:00 a.m. ET. Apply at https://raic.org. The call for submissions is open to all architects or team of architects who were the lead design architects. They must be Canadian citizens or permanent residents of Canada, and licensed or registered with a Canadian provincial or territorial jurisdiction. Eligible projects are those that were built in and outside of Canada and completed between January 1, 2012, and September 1, 2019. mcook@raic.org

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SABMag - FALL 2019

LIVING LIBATIONS headquarters Passive House in the realms of human wellbeing and ecological responsibility

By Jim Taggart Set on a south-facing slope amid the forested hills of Haliburton, Ontario, the design

A manufacturer of organic beauty care products, Living Libations has a staff of 50 who, on completion of this project, now work in a production laboratory building with an exposed heavy timber structure and natural finishes that cre-

of the new Living Libations Headquarters

ate a warm and welcoming atmosphere. The interior hardwood plywood finish is

reflects a corporate philosophy that places

bonded with a food-grade soy-based adhesive, rather than urea formaldehyde

the highest value on nature, beauty and

(UF), which does not emit toxic air contaminants.

being. In building terms, this philosophy

The other program spaces include (on the uppermost floor), a professional

naturally led to the choice of a highly dura-

kitchen, a south-facing dining room that opens onto a 450m2 outdoor terrace, a

ble, low-energy form of construction, with

yoga room with adjoining meditation, and a light therapy solarium which opens

a strong emphasis on indoor environmental

onto a large rooftop terrace that has a panoramic view of the surrounding forest and beautiful sunsets.

quality and attractive common spaces that would have the minimum environmental impact over an extended life cycle. These

The design approach was to let the geography of the site shape and locate all built form in order to minimize the ecological impact on the site. Compasses and a solar pathfinder were used to ensure the building was oriented for maximum

criteria led in turn to the choice of a

cold season solar heat gains. The steep south-facing slope made it possible to

Passive House structure.

capture solar heat by locating the majority of windows on the south side while the concrete construction of the ground floor, earth-sheltered by the slope, created a thermal flywheel to modulate diurnal temperature fluctuations.

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Pump house Water line Septic bed Well location Septic location Fire hydrant

Propane tank Maintenance building Headquarters

Parking

Loading area Site plan

In combination with an unbroken R50 thermal separation,

The design team optimized the building layout, equipment selection, and

this strategy perfectly offsets peak heating and cooling

operation schedule to minimize energy demand. Six air-to-air heat-pumps

demand. Wall and roof system designs were modelled for

easily maintain comfortable conditions through -30C winter nights and

possible interior dew points in "U-WERT" software that

+30C summer days. Evacuated solar tubes on the roof provide domestic hot

proved the benefit of using a smart air-vapour control layer

water in the spring, summer, and fall, and even pre-warmed water in winter

inside the building. "THERM" software was used to guide

months. A propane back-up boiler system for make-up heat was required by

the design of thermally efficient structural connections.

the authority having jurisdiction, but to date it has not been needed. The building was designed with natural light and healthy air in mind, so the highly efficient LED lights were all specified to be in the natural sunlight spectrum. Indoor lights are controlled by occupancy sensors and manual 3

"off" overrides in every occupied room when sunlight is enough, which is often. Occupied rooms are located on the south side of the building and glass partitions are used in office and corridor areas to achieve maximum sunlight penetration. Outdoor lights are controlled by a timer and are full cut off luminaires to protect the view of the night sky. Six highly efficient ERVs constantly supply fresh air throughout the building from 7 am to 7 pm, shutting down at night to conserve energy when the building is unoccupied. During operation, the six ERVs provide ~0.66 air changes per hour. Of the building's 75 triple glazed 0.6 W/m/sq/K windows, 58 are operable and 17 are fixed. All custom builtÂ solid wood workstations are within seven metres of an operable window. The building modulates light and heat from the sun through orientation, window placement, solar control, and natural ventilation. Stormwater falling on its flat roofs and the surrounding site is directed to a pond located in an existing natural valley at the lowest part of the site in full view from the building. (Continued on p.14.)

1. The east elevation. 2. The north and west elevations. 3. The third level south-facing offices. Innovative and customizable Boxx panels from Element5 efficiently span long distances between supporting structural members and are well suited for floor and roof applications in multi-storey buildings.Â The interior hardwood plywood finish is bonded with a food-grade soy-based adhesive, rather than urea formaldehyde, which does not emit toxic air contaminants. Six Tempeff North America RGSP Series Dual-Core energy recovery ventilators recover both heat and humidity in winter allowing for continuous fresh air supply and a frost-free operation in extremely cold conditions without need for preheat or defrost.

SABMag - FALL 2019

9 4

Main floor plan

10 13

3 17 12

Fourth floor plan Floor plans

1 Main entrance 2 Grand gallery 3 Bathroom 4 Production 5 Assembly

6 Packing 7 Shipping 8 Loading bay 9 Warehouse 10 Kitchen

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15 Solarium 11 Cafeteria 12 Open to below 16 Rooftop deck 17 Storage 13 Boardroom 14 Lounge

4. The grand gallery entrance area is open to levels three and four above the main floor. Six Air-to-Air heat pumps by Mitsubishi Electric Heating & Cooling, which can work efficiently below -25C°, provide cooling and heating. 5. The fourth level south-facing covered balcony leads to the west side roof top terrace. 6. The fourth level rooftop terrace connects to the S/W facing solarium. The Katana™ by Moso® bamboo decking is a sustainable, long lasting, class A fire rated natural alternative to other decking products, and very stable in all weather conditions. Aluminum railing profiles by Dekrail are designed for both optimal strength and visual aesthetics.

PROJECT PERFORMANCE Energy intensity (building and process energy) = 59.7kwhr/m2/year Water consumption from municipal sources = 0 litres/occupant/year Recycled material content by value = 5% Regional materials (800km radius) by value = 54% Construction waste diverted from landfill = 20% PROJECT CREDITS OWNER/DEVELOPER: Nadine & Ron Artemis / Living Libations BUILDING DESIGN: G West Building Services in collaboration with Steenhof Building Services Group & CHORNY Associates Architect Inc. PROJECT MANAGEMENT: G West Building Services CONSTRUCTION CONTRACTOR: CDH Carpentry in collaboration with many other trades. LANDSCAPE: Kevin Forbes CIVIL ENGINEER: Greenview Environmental ELECTRICAL AND STRUCTURAL ENGINEER: Steenhof Building Services Group MECHANICAL ENGINEER: Brumar Engineering Services Ltd. PASSIVE HOUSE DESIGN CONSULTANT: Peel Passive House Consulting INTERIOR DESIGN & FURNISHINGS: Nadine Artemis & Jamie Lee Mason PHOTOS: Greg West. Photo 4: John Lehmann Photography

Steenhof Building Services Group was proud to be the prime consultants for all disciplines of Engineering including Mechanical, Electrical & Architectural (Chorny Associates Architects Inc.)

SABMag - FALL 2019

8” Legalett PH thermal wall panel 1x4 Vertical strapping Watertighness tape & foam insulation

Maple hardwood veneer Purebond plywood Maple hardwood window jambs Tescona vana airtightness tape

Extruded rigid insulation Dekrail railing system and glass guard panel 1" Thk. contin. extruded rigid insulation Downspout 60mil. TPO membrane flashed up wall 24" then connected to air barrier

Maple hardwood veneer plywood Maple hardwood flooring 3/4" Plywood t&g subfloor

Custom 6x6 aluminum exterior gutter integrated into top of exterior wall @deck edge

11-7/8" TJI joists @ 16" o/c

3/4" Plywood sheathing on 1x4 strapping - Purebond hardwood plywood - 5/8" type 'x' gypsum board - Intello plus - 2x8 Studs with mineral fibre batt insulation - 1/2” Plywood sheathing - 8” Legalett ph thermalwall panel - Air barrier taped to blueskin covered window bucks - 1x4 Vertical strapping - Horizontal metal siding

3/4" Plywood window bucks fastened to 2x8 frame and primed and covered w/ blueskin to tape to outer wind-rainscreen and inter air-moisture control layer typ.

Cross Laminated Timber (CLT) floor system by Element5

This area was one of the most thermally challenging connections in the building. Blueskin covers the tops of the CLT below the balcony and is sealed to the Intello air/vapour control layer which was wrapped around the outside of the CLT edges during construction. The infill and tapered rigid insulation on top of the Blueskin is adhered with adhesive for less thermal bridging. The 80mil TPO roof system is also ballasted by the bamboo decking system.

Section of the south-facing balcony

This water feature, surrounded by indigenous trees and grasses,

With upstream filters and separators, the whole system was planned

will provide habitat for frogs, turtles, and waterfowl. On this

to ensure that water coming into the building was returned to the

remote rural site, a drilled well provides all water required for

site in an environmentally responsible manner.

domestic use and fire suppression. There is no municipal connection and no water leaves the site except through natural

As a direct result of the client’s particular vision, the Living Libations

evaporation and occupant hydration. The industrial production

Headquarters places the rigorous methodology of Passive House con-

process requires very little water and all waste water is recycled

struction firmly within the more holistic and qualitative framework of

back to the site through a natural drainage Infiltrator® septic

human wellbeing and ecological responsibility.

leach field chamber system. Jim Taggart, FRAIC is the editor of SABMag. 7. The south elevation and pump house in the left foreground. All 75 high-performance windows were supplied by ENERsign.

SABMag - FALL 2019

VALLEYVIEW

town hall

New municipal building aims for Passive House Plus

By Oscar Flechas The new Valleyview Town Hall is an 800 m2 two-storey plus basement building located in Valleyview, 350Km north of Edmonton in the heart of Albertaâ&#x20AC;&#x2122;s oil country. Despite the large seasonal fluctuations in temperature and sunlight levels at this latitude, Valleyview Town Hall is aiming to be the first Passive House certified commercial building in Alberta and the first Passive House Plus in North America. This means that on-site renewables meet 100% of the buildingâ&#x20AC;&#x2122;s energy demand on an annual basis, a giant leap forward for a town with fewer than 2,000 residents.

The building reuses the footprint of a previous structure, minimizing site distur-

To further enhance indoor environmental quality,

bance, preserving adjacent community park space and capitalizing on solar orien-

all interior finishes, paints, adhesives, flooring and

tation. With the latter being a vital strategy in this extreme climate, the program is

composite wood products are specified to con-

organized with high-traffic working areas towards the long, naturally-lit south side

tain low amounts of volatile organic compounds

to ensure energy balancing. In the warmer months, heat gains are controlled with

(VOCs) and be free of other toxins. Beyond the

fixed shades that cut out the high angle sun.

physiological health of its employees, however, the municipality is also concerned for their psy-

In addition to its aggressive energy targets, the Passive House Standard requires

chological wellbeing. Accordingly, all workspaces

excellent indoor air quality through carefully calibrated mechanical ventilation and

and other frequently used areas are adjacent to

air recirculation systems. To maintain steady temperatures over all three levels of

operable windows that connect visually to the

the building, ventilation specifications included a mix of outdoor variable refrig-

park, while a balcony and designated outdoor sit-

erant flow (VRF) system for cooling and heating, and a high-efficiency energy

ting area ensure that the connection with nature

recovery ventilator.

is not only visual but also physical.

Main floor

1 Vestibule 2 Lobby 3 Reception 4 Open workstations 5 Office 6 Meeting room 7 Male wc 8 Universal wc 9 Copy room 10 Filling 11 Servic room

D 6

SABMag - FALL 2019

Another Passive House requirement is for durability of materials and assemblies. The materials chosen, including glass fibre reinforced concrete (GRC), and high pressure laminate siding and metal siding which are both resilient and long lasting. The highly energy efficient envelope includes Passive House certified windows within

a rainscreen system that promotes

drying of any moisture that gets behind the cladding. Together with the airtight and vapour open construction this ensures there is no unwanted condensation within the wall assembly and extends the life of the envelope components. 1. West elevation. Oko skin extruded concrete slats by Rieder are made up of glassfibre reinforced concrete, 100% noncombustible, available in a range of colours, requires no maintenance and individual elements can be replaced easily 2. South elevation. The highly energy efficient envelope uses Euroline 4700 Series THERMOPLUS™ PHC Tilt & Turn windows in a rainscreen system that allows drying of any moisture that gets behind the cladding. Tech-Crete CFI® pre-finished exterior insulating wall panels are used on the foundation.

Second floor

PROJECT CREDITS OWNER/DEVELOPER Town of Valleyview ARCHITECT Flechas Architecture Inc. INDICATIVE DESIGN Kobayashi + Zedda Architects Ltd., ReNu Building Science and Williams Engineering GENERAL CONTRACTOR Scott Builders Inc. LANDSCAPE ARCHITECT Kinnikinnick Studio Inc. CIVIL ENGINEER HELiX Engineering Ltd. ELECTRICAL/MECHANICAL ENGINEER Integral Group STRUCTURAL ENGINEER Laviolette Engineering Ltd. COMMISSIONING AGENT Bair Balancing ENERGY MODELLING Marken Design+Consult PHOTOS Flechas Architecture Inc.

1 Council 2 Deck 3 Universal WC 4 Female WC 5 Janitor 6 Open workstations 7 Office

SABMag - FALL 2019

Section A-A

Section D-D

3. The building reuses the footprint of a previous structure, minimizing site disturbance, preserving adjacent community park space and capitalizing on solar orientation. The foundation of Quad-LockÂŽ Insulated Concrete Forms was supplied by Airfoam Insulation products which offers Insulation Boards, Insulated Metal Panels, Geofoam and Void-FillÂ for wall, roof and below-grade applications. www.airfoam.com 4. The hallway leading to workspaces which have operable windows that connect visually to the park. The project uses a Tempeff North America ERV system with Dual-Core technology to recover both heat and humidity in winter for continuous fresh air supply and a frost-free operation in extremely cold conditions. 5. All interior finishes, paints, adhesives, flooring and composite wood products are specified to contain low amounts of volatile organic compounds. To maintain steady temperatures over all three levels of the building, ventilation specifications included an outdoor variable refrigerant flow (VRF) system by Mitsubishi Electric Heating & Cooling for cooling and heating, and a high-efficiency energy recovery ventilator.

PROJECT PERFORMANCE Energy intensity (building and process energy) = 47kwhr/m2/year (per demand) Energy intensity reduction relative to reference building = 85% (as per phpp 9.3)

SABMag - FALL 2019

PROTECT YOUR INVESTMENT WITH TECH-CRETE’S ROOF AND WALL PANELS.

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Alberta, Saskatchewan, Manitoba, NWT Larry Shoesmith Technical Sales Representative Pilot Group Inc. 403.560.2107 Larry@pilotgroup.ca SABMag - FALL 2019

To Contact the Manufacturer, Please Email info@tech-crete.com

Recessed space @ window locations for window blinds

Wigluv tape for sill and full perimeter (typ.)

Siga corvum - adhere narrow strip to OSB Continuous OSB backdam

Prefinished sill flashing w/ end dams Exterior finish 3/4" air space with P/T strapping 1-1/2” GUTEX Multitherm wood fibreboard, taped Studs 2x10, 16” o.c. Two layers mineral wool insulation, R-38 5/8” OSB , taped Studs 2x6, 24” o.c. One layer mineral wool insulation, R-24 1/2” gypsum board

Seal all OSB joints with Siga rissan

In anticipation of changing needs over the life of the building, an area for future physical expansion is

Air barrier Vapour barrier

included within the existing Passive House envelope. Accommodating future expansion and reconfiguration meant that the size and spacing of the windows had to be carefully considered to accommodate

Spray foam at rim locations

potential changes to the functional layout. Energy-efficient buildings in Alberta are eligible for incentives which help reduce the initial investment for solar technology. These incentives made possible the installation of solar panels on the rooftop, allowing the Valleyview Town Hall to generate 26,945 kWh per year, exceeding the building total

Siga rissan

primary energy demand.

The use of renewable

power leads to a reduction of annual GHG emissions by 38 tonnes when compared to NECB 2011. As the home of the local government, the Valleyview

Custom blocking behind metal siding for brissoleil at support locations only. Seal with Wigluv tape at perimeter

town Hall is a demonstration of leadership on the part of the municipality, as it addresses the issues of resiliency and adaptation in the face of climate change. It also provides an extraordinary opportu-

Quad-Lock Insulated Concrete Form System Ultra Panel Reinforced Concrete Core Extra Panel Ultra Panel Brown Tie

nity to demonstrate the benefits of environmentally efficient buildings, facilitating information and educational programs from preschool to apprentices and trades students. In addition to the pride felt by the community in constructing a precedent-setting Passive House structure, the future operational cost savings can redirect funds to more important priori-

Dimpled membrane Waterproofing

Regular Panel Extra Panel Reinforced Concrete Core Plus Panel Brown Tie Studs 2x4, 24” o.c. with mineral wool batt insulation, R-14 1/2” Gypsum board

ties, such as social programs. The design and construction process for the building was documented in a professionally produced video promoting the Passive House Plus approach. To embrace this philosophy from a small town in the heart of the oil patch makes a bold and compelling statement about the social and environmental imperative to decarbonize the economy.

Double-wall construction detail Oscar Flechas, AAA, AIBC, LEED AP is principal of Flechas Architecture in Calgary. 20

SABMag - FALL 2019

NBK TERRACOTTA CLADDING; MAANJIWE NENDAMOWINAN BUILDING, UNIVERSITY OF TORONTO MISSISSAUGA; ARCHITECT: PERKINS + WILL; IMAGE: LISA LOGAN

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WWW.SOUNDSOLUTIONS.CA SABMag - FALL 2019

STATE OF THE ART VENTILATION FOR EVERY COMMUNITY

Leading Builders and Engineers Team Up with Tempeff in Support of Affordable Housing Needs. Tempeff is empowering builders and engineers with the latest in ventilation equipment that produces the most in sustainability, savings, and most of allâ&#x20AC;&#x201D;healthy green building environment solutions. Tempeff North Americaâ&#x20AC;&#x2122;s Dual Core regenerative technology that offers up to 90% sensible efficiency without any requirement for an energy robbing defrost strategy. Other available technologies offer much lower efficiency due to frosting in colder weather. The Dual Core design is significantly more energy efficient in all conditions, so the payback periods are attractive.

C 22

SABMag - FALL 2019

Find out how you can get the energy recovery to suit your needs at tempeffnorthamerica.com

Turning Up the Heat on Energy Recovery

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Quiz prepared by Erika Mayer, 475 High Performance Building Supply FOURSEVENFIVE.CA

THE KEN SOBLE TOWER

TRANSFORMATION Built in 1967, the Ken Soble Tower is the oldest high-rise multi-residential building in CityHousing Hamilton’s portfolio. A local landmark with significant community value, the tower had fallen into a state of disrepair, declining occupancy and increasing costs. After considering several options including sale, rebuild, capital repair, and rehabilitation, CityHousing Hamilton opted to engage in a modernization program that would ensure long-term asset viability, and secure housing quality and indoor comfort for resident seniors while reducing the building’s environmental impact. The Passive House standard was determined to be the best means of achieving these goals, kickstarting a broader program of Passive House development for CityHousing Hamilton’s portfolio at large. While organizations in the EU and Canada’s West Coast have adopted Passive House as a target, CityHousing Hamilton is one of the first large organizations in eastern Canada to do so. At 18 storeys and more than 80,000 sq.ft., the Ken Soble Tower will be one of the largest EnerPHit certified projects in the world. The rehabilitation project will modernize 146 units of affordable seniors’ housing, while reinvigorating community spaces and outdoor gathering areas, allowing for aging-in-place and barrier-free living, and a changing climate. Slated for completion in 2020, the project will also provide residents with improved comfort and control of their indoor environments and with the ability to withstand extreme climate events into the future. As one of the most complex EnerPHit projects in the region, the design of this project required the development of a number of new strategies and processes. Lessons were learned across the architectural, structural, building envelope, mechanical and electrical disciplines, which have been identified here in an effort to support the dissemination of the Passive The Ken Soble Tower in the late 1960s and now being modernized in accordance with the Passive House EnerPHit retrofit standard.

North America’s First EnerPHit Apartment Tower

House standard in the Ontario context. LEAD ARCHITECT: ERA ARCHITECTS For lead architects and retrofit specialists ERA Architects, a highlyintegrated design process was required from the outset. To ensure that the holistic goals of Passive House were being met, an extremely high standard of coordination was adopted to the extent that even detailing decisions received inputs from a number of disciplines to ensure dynamic thermal comfort standards were being met. ERA hosted weekly collab-

By ERA Architects with Entuitive, Transsolar KlimaEngineering, JMV Consulting, Reinbold Engineering, Nemetz (S/A) & Associates.

orative design sessions, with all disciplines coming to the table to discuss shared impacts of their progress. Design solutions were assessed based on their ability to meet the stringent requirements of Passive House, and their familiarity and constructability in the local trade context.

The Ken Soble Tower Transformation is a groundbreaking project rehabilitating a post-war apartment tower in Hamilton, Ontario to the Passive House EnerPHit retrofit standard - reducing greenhouse gas emissions by 94% and laying the groundwork for the industry-wide repair and renewal projects which are urgently needed to maintain thousands of apartments across Canada.

This process required more work up front, but was rewarding and established strong teamwork from the start. With Passive House’s relative infancy in North America, ERA was also challenged in sourcing appropriate products not readily available in Canada for high-rise applications. HVAC equipment, Passive House-certified windows, and appropriate insulation to meet the effective R38 envelope requirements were some of the primary sourcing challenges. This process revealed market gaps which will likely begin to be filled as Passive House construction becomes more standard in the Canadian market. SABMag - FALL 2019

AFFORDABLE 146 units of modernized SENIORS’ HOUSING 146 units of modernized AFFORDABLE AFFORDABLE SENIORS’ HOUSING SENIORS’ HOUSING 146 units of modernized AFFORDABLE SENIORS’ HOUSING

SYSTEMS Centralized HVAC with Cooling Riser Replacements for Most Systems Full Building Sprinklering ENVELOPE R38 Overcladding Passive House Windows

MODERNIZATION Accessibility Upgrades New Community Room and Solarium Interior Upgrades to Support Aging-in-Place Rain Gardens and Green Gathering Spaces

TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURE

Juliette Balconies

94% 94% 94%

reduction of GREENHOUSE GAS EMISSIONS reduction of reduction of GREENHOUSE GAS EMISSIONS GREENHOUSE GAS EMISSIONS

94%

reduction of GREENHOUSE GAS EMISSIONS

YEAR 2050+

0 0

YEAR 2050+ YEAR 2050+

YEAR 2050+

DESIGNED FOR A CHANGING CLIMATE DESIGNED FOR A DESIGNED FOR A CHANGING CLIMATE CHANGING CLIMATE DESIGNED FOR A CHANGING CLIMATE

20% OF UNITS BARRIER FREE 20% OF UNITS 20% OF UNITS BARRIER FREE BARRIER FREE 20% OF UNITS BARRIER FREE

Working with an existing building to meet the EnerPHit standard

As a result, a more North American approach was taken in the

is different from designing a Passive House new-build. There were

centralized ventilation, heating, cooling and hot water systems, and

many advantages of working with the existing building, which

by incorporating heat losses from North American building com-

included a large thermal mass, a solid structure to which to attach

ponents, such as code-required back-up generator block heaters,

insulation, a simple shape, and low glazing-to-opaque wall ratio.

garbage chutes, and standard elevator machines.

Conversely, a disadvantage was its solar orientation not being ideal from the perspective of solar gain. Existing windows were primarily east and west facing, which was poor for both passive solar gain in winter and overheating in summer.

MECHANICAL ENGINEERS: REINBOLD ENGINEERING Mechanical engineers Reinbold Engineering also played a key role in meeting the Passive House standard, designing a non-traditional mechanical system to deliver a fraction of the heat and cooling of

This challenge was mitigated through active heating and a multi-

a typical system. This demanded a creative and integrated design

stage cooling strategy. Likewise, the existing building had an

approach, with Reinbold undersizing the mechanical systems

uninsulated slab-on-grade ground floor that contributed to a

(relative to the existing building conditions) in response to the ultra

significant portion of the building’s heat loss. This challenge was

high-performance envelope.

addressed through deep perimeter insulation.

Designed in Europe, the Passive House standard can at times be

The adaptation of the German Passive House standard to a North

at odds with Ontario’s humid climate and local building code. Most

American context resulted in a number of lessons learned. First,

of Europe does not experience the humidity of the east coast of

the PHPP modelling software was originally designed for a single-

North America - peak wet-bulb temperatures are typically under

family home in a relatively mild European climate with minimal risk

24°C in Europe, but 30°C or higher in Ontario - and therefore

of overheating. To adapt this modelling to suit a multi-unit resi-

the standard does not necessarily take into account the negative

dential high-rise with colder winters and hotter summers, TRNSYS

health and comfort impacts of humidity. While the Passive House

was used to run dynamic thermal simulations for both heating

standard relies on ventilation without additional cooling systems,

and cooling periods. This helped to refine the design to suit the

the design team identified a high risk of overheating due to high

most extreme conditions within the building and throughout the

relative humidity in the regional climate zone. As such, a central-

year. THERM and FLIXO were also used to understand the thermal

ized air conditioning system was integrated into the design, with

bridges and surface temperatures to make sure the windows all

resulting impacts on the Passive House energy budget.

met the criterion set out. A number of

technologies that are standard and affordable in

Germany are not yet widely available in the Canadian market, requiring alternative approaches to achieving the targets. These

Meeting the Passive House standard requires that areas of heat loss are reduced or eliminated entirely. This created challenges in meeting local building code requirements for both the HVAC and plumbing systems. In both cases, ventilation was the concern.

included: integrated facade shade systems, high-efficiency eleva-

For instance, the waste water venting on the plumbing system is

tors and appliances, standard thick external insulation systems,

considered by the Passive House standard to be a vertical thermal

high-performance Passive House certified high-rise windows,

bridge through the building.

decentralized ventilation units, and decentralized hydronic heating and cooling units.

SABMag - FALL 2019

Detailed dynamic simulations for both present day and future 2050 Toronto climate zones were used to inform the

design, securing resilience to temperatures which are pro-

jected to rise significantly over the next 30 years. BUILDING ENVELOPE ENGINEERS (ENTUITIVE) As building envelope engineers, Entuitive had a critical role in the design of the project. A key contributor to overall energy performance, the building envelope renewal had 3

two goals: improve thermal resistance (R-38 effective) to the level required by EnerPHIT, and ensure airtightness to allow for the significant downscaling of mechanical systems. The retrofit addresses several challenges posed by the existing 1960s structure, including thermal bridges and composite masonry walls with limited interior insulation and vapour control layers. The proposed cladding upgrade also had to minimize intervention to the existing masonry for thermal and structural reasons. Additionally, to limit combustibility and embodied carbon concerns, a mineral wool-based insulation system was selected. The resulting

cladding design includes a 150mm thick mineral wool EIFS system, not widely used in the local market, complete with

an integrated drainage layer and new fluid-applied air barrier membrane. In terms of air tightness, to meet the strict air leakage criteria (targeting 0.6 ACH at 50Pa), a multi-phased approach to field testing was implemented. This included the required Whole Building Air Leakage test, supplemented by targeted mockups and “guarded” floor-by-floor testing to provide assurance as construction progresses. An appointed “air boss” will also be responsible for managing and limiting

DYNAMIC THERMAL COMFORT THROUGH COOLING

breaches through the air barrier system during construction. 0

Passive House-certified windows suitable for high-rise buildings are not widely available in the North American

Passive

Active

0. R38 Effective Envelope 1. Glazing with a low Solar Heat Gain Coefficient 2. Low emissivity interior shades 3. Ceiling fans to circulate air within units 4. Lightly tempered air delivered through a centralized ventilation system 5. Decentralized cooling ‘boost’ through a Variable Air Volume Unit activated by in-suite controls

market. An Alternative Solution was submitted to the local building authority to permit the use of fibreglass-framed windows, typically prohibited in non-combustible, high-rise applications. The successful submission, which references the upcoming changes to the National Building Code, will allow their use in this application for one of the first times in Ontario. The existing concrete balconies will also be removed to improve thermal continuity, replaced with Juliette balconies, featuring similar fibreglass-framed doors. PASSIVE HOUSE CONSULTANTS: TRANSSOLAR KLIMAENGINEERING AND JMV CONSULTING Collaborating with all disciplines, Passive House consultants Transsolar KlimaEngineering and JMV Consulting were

Passive House high-rise buildings can be prone to overheating, in humid

essential in ensuring that all designs would meet Passive

climate zones, and particularly in shoulder seasons. The design team was

House standards. Key challenges included preventing over-

tasked with mitigating overheating risk, which can be a cause of death

heating, sourcing insulation material, working with the exist-

in vulnerable populations. To avoid overheating in the units without

ing building and adapting local design practices to Passive

installing external operable shading, a five-stage cooling strategy was

House design methodology, modelling and technology.

designed. It included:

Achieving the EnerPHit certification required the combined

• Glazing with a low Solar Heat Gain Coefficient (SHGC);

knowledge and collaboration of the entire design team. This

• Low emissivity interior shades;

meant finding new building envelope and mechanical solu-

• Ceiling fans to circulate air within units;

tions, and designing unique specifications around installa-

• Lightly tempered air delivered through a centralized ventilation system

tion quality and air tightness. Time was spent ensuring that

• Decentralized cooling ‘boost’ through a Variable Air Volume Unit acti-

products were readily available in Ontario that would meet

vated by in-suite controls.

the stringent targets.

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Wall construction detail 1 2 3 4 5

6 7 8 3

9 10

1. AWB flashing 2. Polyurethane Z-girt 3. Silicone transition strip 4. Fiberglass window 5. Roller shade 6. Vapour barrier 7. Helical tie 8. Fiberglass angle 9. Galvanized steel girt 10. Fibreglass cladding clips 11. AWB flashing 12. Polyurethane thermal break Z-girt 13. Concrete board-faced 14. Drainage plane 15. Fluid-applied bituminous waterproofing 16. Weeping tile

11 12 13 14 15

Though the electrical engineer’s design is less affected by Passive House considerations than other disciplines, Nemetz was called upon to collaborate closely with mechanical engineers Reinbold in ensuring the electrical requirements of Passive House certified HVAC equipment could be integrated into the design within the constraints of the existing building’s capacity. SCALING LARGE PASSIVE HOUSE PROJECTS IN ONTARIO

Since the Ontario Passive House market is still in its nascency, the approach and considerations required for large-scale projects are still relatively unfamiliar within the architecture and

To mitigate the impact of this loss, an Alternative Solution to the local

engineering fields. The challenges and considerations described

building code was developed which included a positive air attenua-

here attempt to share lessons learned with others in the field to

tor, an air admittance valve and a bladder of air at the bottom of the

narrow this gap.

building. Typically, air admittance valves are only permitted when it

However, there are a host of other market gaps that will also

is not possible to vent through the roof.

need to be filled in order to scale large Passive House projects in Ontario. Trades training within the construction industry will

ELECTRICAL ENGINEERS: NEMETZ (S/A) & ASSOCIATES LTD.

be particularly crucial: by familiarizing the construction industry

For electrical engineers Nemetz SA & Associates, the primary chal-

with the unique requirements of Passive House buildings on site,

lenges were tied with both meeting Passive House standards and

it will be possible to execute projects successfully in an increas-

working within the constraints of an existing building.

ingly affordable, efficient, and low-risk manner. In part, this will require the ‘demystification’ of the standard, which is deliberate-

An example of a small but consequential Passive House challenge was that local regulations require that emergency generators have a continuously running block heater installed to allow the generator to start up within 15 seconds of a power failure. The intended block heater alone initially took up 7% of the overall project's primary energy budget. However, increased insulation at the generator room and other modifications to the envelope mitigated this issue.

ly low-tech and largely relies on standard construction methods. New capacity is already being built through early adopters and sophisticated constructors, and in parallel, increasingly stringent local performance requirements which are driving others to follow suit. And indeed, a number of high-performance Ontario retrofits are already gathering the critical mass needed to catalyze this industry growth, paving the way for the widespread

In a scenario not uncommon in retrofits, it was a challenge to work

renewal of our aging housing supply -- and in so doing, securing

with the existing electrical service and transformer. Like most older

a healthy, resilient future for thousands of Canadians.

apartment towers, the Ken Soble tower did not previously have a cooling system or sophisticated HVAC system, so the introduction

ERA Architects is a Toronto-based architectural practice special-

of these new systems required the capacity of the transformer to be

izing in the retrofit of existing buildings. http://www.eraarch.ca

closely monitored.

www.eraarch.ca

SABMag - FALL 2019

FIRE SAFETY IN TALL WOOD BUILDINGS Jim Taggart

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Over the past decade, Canada has been developing regulations to promote the use of cross laminated timber (CLT) and other mass timber products, in a variety of new and larger scale applications. This has required much research and testing to establish standards for structural strength, fire performance, thermal and acoustic behaviour. Large scale testing of CLT panels has generated consistent results and assured scientists that large mass timber buildings can be designed to the standards of life safety and structural stability required by the National Building Code of Canada. Nonetheless, the perception of some municipal authorities, local fire marshals, building owners and developers does not yet comfortably differentiate between the fire performance of light wood frame structures and those made of mass timber. This same perception is evident in Europe where many Tall Wood buildings are still required to have concrete podiums, stair and elevator shafts.

The Legacy of the Chicago Fire The reason is that almost all the large cities in Europe and North America had major fires in the 19th century that resulted in changes to the local building code, reducing the permissible height of wood buildings, or prohibiting them completely. However, the fire that devastated Chicago in 1871 impacted an entire continent. Propelled by strong winds, the Chicago Fire destroyed 17,500 buildings, travelling from one to the next by igniting roof shingles, cladding, balconies and other exterior wood elements. More than 50 insurance companies declared bankruptcy and in response, the city of Chicago introduced a new bylaw requiring all new structures to be of â&#x20AC;&#x2DC;fireproofâ&#x20AC;&#x2122; construction. Loadbearing masonry became the default construction method, but within a decade, the emergence of reinforced concrete offered engineers and architects the possibility of high-rise structures with narrow columns and expansive glazing â&#x20AC;&#x201C; a new aesthetic with instant and widespread appeal. With few exceptions, traditional timber building methods were eclipsed.

SABMag - FALL 2019

Cover: Canada's Earth Tower. Multi-storey winter gardens and selectively exposed wood structure bring nature into the tower form. Architect: Perkins and Will. Above: Earth Sciences Building. One of the largest panelized wood buildings in North America at its time of construction, and a precedent for future mass timber projects. Architect: Perkins and Will. Photo Credit: Martin Tessler. Right: Terrace House. Tall hybrid wood tower with flanking terraces that complement the Evergreen Building. Architect: Shigeru Ban. Credit: PortLiving.

In some cities, ‘brick and beam’ warehouses remained popular; the eight storey (one below grade) Landing building in Vancouver (1905), is one example that survives as testimony to the practicality and durability of heavy timber buildings in urban environments. However, as attitudes changed, much of the empirical knowledge about the design, construction and performance of heavy timber buildings was lost.

The Imperative for Reviving Tall Wood Buildings For most of the 20th century, architects favoured industrial materials such as concrete, steel and glass when building in urban environments, a choice driven primarily by concerns for economy, utility and a Modern aesthetic. Little or no consideration was given to the environmental impact of buildings. However, we now know that the construction and operation of buildings contributes approximately 40% of the greenhouse gas emissions in most developed countries. We also know that the world has a housing crisis; one that will require us to more than double the output of our residential construction sector if meaningful progress is to be made. Our current methods of construction, which rely heavily on reinforced concrete, concrete masonry and steel, may arguably address the housing crisis, but in so doing they will exacerbate climate change. Concrete production is responsible for between 5% and 8% of global GHG emissions, while the manufacture of steel consumes 5% of the world’s electricity – much of which is still generated by fossil fuels. With the material content of a building being approximately 50% structure, it is crucial that we find substitutes for these carbon intensive materials. The only option currently available is mass timber.

Why Wood? Living trees sequester carbon dioxide from - and release oxygen to - the atmosphere. They use the carbon to create cellulose which is the major component of wood fibre. Each cubic metre of wood contains approximately 0.9 tonnes of carbon, which is retained in the wood until it decays or is consumed by fire. Converting trees harvested from sustainably managed forests into durable building products and planting new trees in their place, maximizes both carbon sequestration and carbon storage – a fact confirmed in 2007 by the Intergovernmental Panel on Climate Change in its Fourth assessment Report.

The Evolution of Building Codes As seen in the aftermath of the Chicago Fire, changes to building codes restricting the use of combustible construction generally happened quickly in response to such disasters. However, reversing these changes to reflect our emerging understanding of fire behaviour takes much longer. The National Building Code of Canada (NBCC) was first published in 1941 and permitted heavy timber structures up to 22.5 metres. (For reasons unknown, one storey lower than The Landing). In 1953, the change to a risk assessment approach further reduced the permissible height to four storeys. This height was favoured by fire authorities, because it represented the tallest structure in which a fire could realistically be controlled and extinguished, given the fire detection systems, response times and firefighting equipment of the day. Paradoxically, this Code Change did not restrict combustible material in concrete buildings, nor require exposed steel to be protected. This height limit persisted until 2015 (2010 for residential construction in British Columbia) when it was raised to six storeys.

In addition, the substitution of wood for other materials with a significant carbon footprint, such as concrete and steel, increases the net environmental benefit. On this basis, wood may be considered not simply as mitigating climate change, but contributing to its reversal.

SABMag - FALL 2019

Applied

The NBCC began as a guide, but over time evolved into a prescriptive document. Only in 1996 did it introduce performance criteria that offered users some flexibility in their choice of construction, based on a system of equivalencies. In 2005, the NBCC moved to an Objective model, in which compliance is measured against Objective and Functional Statements. It offers two compliance paths: Deemed to Satisfy Solutions and Alternative Solutions. The former offers one or more prescribed solutions, whereas the latter requires proof that a proposed solution meets the criteria of the Objective and Functional Statements.

Encapsulated

2 1

In the case of wood, igniting small members is relatively easy, whereas igniting mass timber components is virtually impossible in buildings in normal circumstances. This means light wood frame elements are almost always protected by layers of gypsum wallboard, while heavy timber elements generally extinguish when the source of heat is removed. Even in an intense fire, when heavy timber may continue to burn, it does so at a predictable rate. By adding thickness to the structural section, this phenomenon can be used to provide a specific fire resistance rating.

1 2 3 4

Gypsum board encapsulation Structural steel Applied fire proofing Steel-concrete composite floor

4 TIMBER

These Alternative Solutions are adjudicated on a case by case basis, are non-transferable and take a considerable length of time before being adopted into the Code as Deemed to Satisfy Solutions. In the case of a new construction material or technology, the rapid pace of scientific research can create a gap between proven performance and what is considered acceptable under current codes. It is important to note that all buildings have inherent risks, both in terms of structural failure and fire related damage. Whatever the materials used in construction, building codes are designed to mitigate risk, rather than eliminate it altogether.

STEEL

1 2 3 4

Gypsum board encapsulation Structural wood Non-structural char layer Timber floor

1 2 3

4 CONCRETE 1 2 3 4

Concrete cover Steel reinforcing Structural concerete beam or slab band Structural concrete deck

1 2 3

Fire Behaviour The greatest risk to the integrity of a structure and the safety of its occupants comes from a fire that develops inside the building - a so-called compartment fire – rather than one that starts outside. The word ‘compartment’ carries a particular meaning, that of an interior space, or series of contiguous spaces, separated from other such compartments in the building by fire-rated floor and wall assemblies. For a fire to start, three things must be present simultaneously: fuel, oxygen and a source of ignition. Fire is an exothermic reaction in which oxygen and fuel are consumed, and heat (together with by-products such as smoke) is produced.

SABMag - FALL 2019

Typically, a fire begins as an isolated phenomenon, but spreads and grows in intensity as it consumes the combustible contents and surfaces of the compartment. As the temperature increases, smoke will rise and spread across the ceiling of the compartment, then spread down the walls. When the smoke layer reaches a temperature of approximately 600°C, the heat radiating from it will cause most of the combustible objects close to it to ignite simultaneously. This instantaneous transformation of a fire from localized to all-engulfing is called ’flashover’. In most cases it is the availability of fuel that determines how a fire develops in the early stages and the availability of oxygen that determines its growth after flashover.

PAS

17.

SIV

E M EA

16.

FIRE SAFETY AND CONTROL SYSIEMS RE

15.

F.D.C.

14.

13.

12. 6

11.

ARM

FIR

10.

8. 9.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

1. Limit combustibility of structure 2. Limit combustibility of interior finishes 3. Limit combustibility of building components 4. Compartmentalization for fire 5. Compartmentalization for smoke 6. Scale limited by height 7. Scale limited by area 8. Use and occupancy type 9. Exit access 10. Exit protection 11. Heat detection through fire alarm 12. Smoke detection through smoke alarm 13. Fire suppression through sprinklers 14. Fire suppression through standpipes FIRE SAFETY AND CONTROL SYSTEMS Limit 15. combustibility of structurethrough on-site water supply Fire suppression Limit combustibility of interior finishes Limit 16. combustibility of building components Smoke suppression through pressurization Compartmentalization for fire Compartmentalization for smoke 17. Smoke clearance through smoke venting Scale limited by height Scale limited by area Use and occupancy type Exit access Exit protection Heat detection through fire alarm Smoke detection through smoke alarm Fire suppression through sprinklers Fire suppression through standpipes Fire suppression through on-site water supply Smoke suppression through pressurization Smoke clearance through smoke venting

Design Objectives for Fire Control The most important objectives of fire design are: to ensure the structural stability and integrity of a building for the duration required to enable the safe egress of building occupants and subsequent intervention by firefighters; and to ensure the life safety of occupants within the floor areas or compartments of a building. For tall buildings, this structural fire resistance requirement is typically two hours. To ensure life safety for occupants within floor areas, measures must be taken to restrict the development of a fire within the compartment in which it started and to restrict the spread of heat or flames from that compartment to other parts of the building. Fire safety design combines both passive and active measures that together form a comprehensive strategy for detection, suppression and control. Passive measures are concerned with physical building attributes such as material specification, compartment size, and the number and location of fire exits and firefighting access points. Active strategies include automatic heat and smoke detectors, fire alarms, sprinkler systems, smoke vents, backup generators, dedicated firefighting elevators, and in some cases, a dedicated on-site water supply for firefighters. Not all strategies will be required in all cases and fire simulation modelling can be used to determine the combination of strategies that will most effectively achieve the required level of performance. In the case of tall buildings, regardless of construction material type, sprinkler systems and fire alarms, and multiple exit paths, are mandatory.

These measures have reduced detection time to between 120 and 180 seconds and the arrival of firefighters to something less than ten minutes. Not only are 95% of fires restricted to the compartment in which they start, but many are extinguished before the building structure is seriously engaged. It is worth noting that sprinklers are one of the most reliable of todayâ&#x20AC;&#x2122;s many building systems.

Above left: Typical fire safety design approaches for structural elements. Credit: Perkins and Will. Above: Active and passive strategies for fire control in modern high-rise buildings. Credit: Perkins and Will.

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Research, Testing and the Development of Codes and Standards Canadian Standard CSA O86 is referenced in Part 4 of the NBCC and in provincial building codes. It provides criteria for the structural design and evaluation of wood structures or structural elements including CLT and was last updated in 2017. However, the breadth and depth of research on CLT structures, in particular, is outstripping the ability of codes and standards to keep up. The 2020 editions of the National Building Code and National Fire Code will be based on past research and analysis conducted In British Columbia and Quebec and ultimately ratified by the Codes Canada Standing Committee on Fire Protection. The Code will prescribe minimum dimensions for all timber members, encapsulation of the timber structure with two layers of 12.5mm Type X gypsum wall board, and floors finished with a concrete topping. Within the Deemed to Satisfy provisions of the new codes, there will be limited exceptions to encapsulation permitted.

Canada’s Earth Tower, a tall hybrid wood project, envisionned for Vancouver.

Catching Up with the Research Meanwhile, testing of fire behaviour in CLT structures has been ongoing at a variety of organizations, including Carleton University, the National Research Council of Canada, the Southwest Research Institute, the Forest Products Research Laboratory, the National Fire Protection Association and the Fire Protection Research Foundation.

Collectively, the tests have demonstrated fire performance for exposed CLT structures that is far superior to that previously supposed and to some degree blurs the boundaries between fully encapsulated, partially encapsulated and exposed CLT structures.

Each organization has conducted multiple tests to compare the performance of alternative configurations of CLT compartments. The common objective was to determine how much wood can be exposed and still be safe in the scenario when sprinklers fail to control the fire and the fire service is unable to respond. These tests have variously measured the effects of: • The size of compartments • The size of ventilation openings in the compartment • The area and locations of exposed CLT elements (zero, one or multiple walls, none, part or all of the ceiling) with the remainder of the surfaces covered in two layers of 12.5mm Type-X gypsum wallboard • The use of regular and heat resistant glues

In reviewing the test results, Dr Steven Craft, who conducted the research at Carleton University concluded:

Among the significant (and sometimes counterintuitive) conclusions have been that: • Smaller ventilation openings lead to more intense, higher temperature fires • Larger compartments (e.g. 22.4m x 4.8m x 2 .7m high) also result in less intense fires • Exposed beams, columns and ceilings are unlikely to cause a significant increase in fire risk. • The use of heat-resistant glues prevents the delamination and loss of the outer layer of Exposed CLT panels, and such panels may perform better than encapsulated CLT elements

In its commitment to advancing tall wood buildings, British Columbia has taken the lead, agreeing to implement NBC 2020 in the fall of 2019 for qualified jurisdictions like Vancouver. The Province has also announced its intention to permit fully exposed timber structures in buildings up to nine storeys with a requirement for two-hour fire resistance. Albeit belatedly, this will bring at least one Canadian province into line with the approach already being taken by two progressive jurisdictions at opposite ends of the world.

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“Fire safe design of tall wood buildings is possible with the primary question being how much wood can be safely exposed. Based on changes to CLT adhesives, the Canadian and US codes are now very conservative on the amount of exposed mass timber that is possible. Many tall wood buildings currently being designed in Canada go beyond the 2020 NBCC provisions in height, occupancy and/or areas of exposed timber, as mass timber construction has progressed faster than code changes.“

CASE STUDIES FROM AUSTRALIA AND NORWAY

25 King Street, Brisbane, Australia Following the success of Forte, the country’s first contemporary Tall Wood building in 2012, the Australian Building Code (ABC) was updated to include partially or fully encapsulated wood construction up to 25 metres in height in its Deemed to Satisfy provisions. Now, developer Lendlease has pushed the envelope for mass timber construction even further. Designed by Bates Smart Architects, 25 King is a 10-storey commercial office complex with a total floor area of 16,446 square metres. When completed in the spring of 2019, it became the largest contemporary mass timber office building in the world. Architecturally, 25 King is a glazed rectilinear volume through which can be seen its horizontal floor plates and exposed timber crossbracing. The linear service core on the north side of the building is constructed entirely in wood. Structural engineers at Aurecon used glulam timber for the columns and beams, while the floor panels and walls of the service core were made from CLT. Glulam beams were also used for the diagonal bracing of the exterior bays of the building and for the V-shaped supports that form the retail colonnade on the ground floor. Internally, fire engineers at Aurecon sized the exposed wood elements to include a 63-millimetre thick charring layer, designed to provide the required 90 minutes fire resistance, with an additional 7 millimetres assumed to have reduced structural performance under fire conditions. The same principles apply to the CLT floor and wall panels, their overall thicknesses of 220 and 240 millimetres also including a charring layer. Mjøstårnet, Brumunddal Norway This 18-storey, 85.4-metre, tower is located in the small town of Brumunddal, about 140 kilometres north of Oslo and is currently the tallest wood building in the world. Designed by Voll Arkitekter and completed in spring 2019, the mixed-use structure includes offices, 32 apartments, 72 hotel rooms, two restaurants and a rooftop terrace. Engineered by Sweco, the interior structure consists of glulam columns and beams and a system of glulam and LVL sandwich panels for the floors. Testing by SP Fire Tech confirmed that the primary load bearing system meets the two-hour fire resistance requirement while secondary load bearing elements such as floors meet the 90-minute requirement. Fire resistance for the glulam structure is achieved through the charring method, with members being oversized by approximately 80-millimetres in each dimension. The floor panels are filled with mineral wool insulation. Full sprinklering is a prerequisite for all tall buildings, but numerous other measures were also part of the fire design strategy. These included encapsulation of CLT in stair shafts, fire stopping of exterior cladding, fire retardant painted surfaces in escape routes, mineral wool insulation in the LVL and glulam floor panels and intumescent paint on some steel connections. Throughout most of the building, the glulam columns and non-loadbearing CLT walls remain exposed. With all the apartment units presold and the hotel fully booked, Mjøstårnet is a further demonstration that the market is ready for exposed wood buildings of considerable height.

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Previous page: Top Right: 25 King Street, the largest contemporary mass timber office building in the world. Architect: Bates Smart Architects. Photo credit: Tom Roe. Right: Mjostarnet, the tallest wood building in the world. Architect: Voll Arkitekter.

A Canadian Case Study? Canada’s Earth Tower, Vancouver BC At 35-40 storeys, and 31,500 square metres, the tower proposed near the Broadway corridor on the south side of Vancouver’s False Creek, would set a global precedent for a hybrid mass timber building in terms of both size and height. It has been conceived by architects Perkins+Will to be carbon neutral in both construction and operations. This has been achieved through the use of a mass timber structure of dowel-laminated timber and cross-laminated timber panels and glulam beams, and a building envelope that conforms to the Passive House standard. Concrete foundations, exit stairs and elevator core complement the timber structure. Seen as the next stage in the evolution of Tall Wood structures under the Canadian Building Code, the degree of exposed wood at 8th and Pine will be determined by extensive large-scale fire testing. A comprehensive ‘healthy materials’ strategy will minimize the use of toxic (and combustible) petroleum-based products. Instead, natural materials such as mineral wool, stone, tile, glass and steel will strategically limit the amount of combustible materials available to burn inside the building. The fire strategy will include enhanced sprinkler systems and fire alarm systems with greater reliability; an onsite water supply that will enable sprinklers to remain operational even if an earthquake disrupts water supplies; and recognition of the enhanced fire performance of mass timber components bonded with new heatresistant glues The resulting design will undergo rigorous peer review by independent fire engineers and City of Vancouver staff.

Conclusion The environmental arguments in favour of building with sustainably managed mass timber have been recognized around the world for a decade and were still a key motivation for the clients and architects of the 13 projects I researched for the book ‘Tall Wood Buildings: Design, Construction and Performance in 2015’. Most of these architects also emphasized the important benefits of wood on occupant health through the reduction of airborne chemicals and particulates and humidity control.

Canada's Earth Tower, residential interior view. Credit: Perkins and Will.

If current plans are realized, these will be followed by global corporations such as Microsoft, Google, and Amazon. Here the environmental agenda is most assuredly running in parallel with an economic one that emphasizes the need to attract and retain high quality employees in a competitive market. This IS no isolated phenomenon. The 2018 Phase 3 Report from the World Economic Forum on the Future of Construction, identifies ‘Societal and Workforce’ as one of four megatrends already influencing the future development of the industry. “The construction industry is concerned with the health and safety not only of workers but also of the people who actually live or work in the buildings. Employee health and productivity are linked to the quality of the indoor environment, and that quality is largely determined by decisions made during project development and construction.” I have argued the case that exposed mass timber is the best material to meet this challenge. As far as Canada is concerned, an inability to deliver buildings of this calibre, that simultaneously address environmental, economic and social agendas, may affect the reputation of the construction industry,

What has emerged since, as I research the second edition of the book, is that the clients for most of the new projects stress the psychological benefits to building occupants of living or working in an environment with an exposed wood structure. These clients include international property developers like Lendlease and Hines and major corporations such as UK telecom giant Sky and Swissbased Tamedia.

In this case, however, it is not the quality of research, nor the willingness of designers and builders that is holding us back; rather it is the slow and bureaucratic nature of our code development process. In the face of this, the efforts of the Province of British Columbia and the City of Vancouver to advance the cause of Tall Wood buildings are to be applauded.

The Author:

Acknowledgement

Jim Taggart has written on wood architecture for more than 20 years. In addition to many case studies, his credits include the books ‘Toward a Culture of Wood Architecture’ (2011) and “Tall Wood Buildings: Design, Construction and performance (2017).

The author would like to thank Andrew Harmsworth, Principal, GHL Consultants, Vancouver and Dr. Steven Craft, Principal CHM Fire Consultants Ltd., Ottawa for their expert contributions to this article.

SABMag - FALL 2019

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SABMag - FALL 2019

Designing for

ACCESSIBILITY The Rick Hansen Foundation

BECOME A LEADER Prioritizing accessibility in design is a way to establish you and your organization as a leader in both innovation and social responsibility. Universal Design demonstrates a people-first approach, one that is able to meet a variety of needs for years to come. The thing about Universal Design, says VP Access and Inclusion at the Rick Hansen Foundation Brad McCannell, is that “it’s invisible.” Those who don’t have a disability may not notice that there’s good colour contrast on the floor for navigation with a vision disability, or that the elevator has wide doors to accommodate a wheelchair. Individuals with disabilities, says McCannell, might not notice it either, which is a good thing: it means they didn’t have to overcome a challenge to get from A to B. Imagine knowing that your design positively impacts the way millions of Canadians navigate the built environment.

Even if an individual doesn’t have a disability, they are

1. The Rick Hansen Foundation Accessibility Certification™ uses a set of standards for the built environment that takes mobility, vision, and hearing disabilities into consideration.

BY: THE RICK HANSEN FOUNDATION More than 6 million Canadians aged 15 and over identify as having a disability, and this number is growing as our population ages. Are our buildings built in a way to support their needs, now and in the future? Not really. While building codes play an important role, we still have a long way to go to ensure people of all abilities have access to the spaces where we live, work, learn, and play. Here’s why this should matter to you.

more likely to live somewhere or support a business if they feel their values are in the right place. Plus, nearly 50% of Canadian adults say they have or have experienced a permanent or temporary disability, or live with someone who has . If they haven’t yet, chances are they will, and being prepared for the future gives you a leg up over your competition. This helps explain why over 2/3rd of Canadians believe all new buildings should be universally accessible. A 2019 Angus Reid Institute public opinion poll found: - 67% of Canadians are concerned about future mobility challenges - 70% say new buildings should be universally

THE BUSINESS CASE

accessible

No matter the type of project you are designing, making it accessible is good

- 30% (9 million adults) consider accessibility when

business sense. Building owners and operators want to know they are working

deciding which business to visit

with someone who can maximize the number of people who can enter their facility. Designing for accessibility helps you do this, and that advantage helps

A ROADMAP TO ACCESSIBILITY

you stand out from others.

We all know accessible design is important, but with such a variety of regulations and opinions, knowing

For example, if it’s a residential building, it will appeal to a greater variety of

where to start can be a challenge in itself.

potential tenants or buyers, resulting in fewer vacancies and quicker sales. If it’s an office building there is easier access to a wider pool of qualified employees

The Rick Hansen Foundation Accessibility Certification™

and applicants. And if it’s a business, more people can access the storefront and

(RHFAC) program was created for industry to fill the

spend their money there.

gap between local building codes and the real needs of users. It offers an approach that is used nationally,

Not only is accessibility a human rights issue, it is an economic imperative.

providing consistent ratings across the country.

A 2018 report from the Conference Board of Canada shows that the positive impact accessibility can have on the economy should not be ignored:

The program uses a set of standards for the built envi-

- people with physical disabilities make up a large and growing consumer

ronment that takes mobility, vision, and hearing disabili-

group—14.3% of consumer spending, or $164 billion per year.

ties into consideration. Designated RHFAC Professionals

- Improvements to workplace access would allow 550,000 Canadians with

use a rating scale to identify barriers in both designs

disabilities to work more hours, increasing GDP by $16.8 billion by 2030.

and buildings on their level of meaningful accessibility.

SABMag - FALL 2019

2 2. Vantage College at Orchard Commons at the University of BC provides many features that are accessible, such as the sloped route adjacent to the stairway at the main entrance, wide and well-lit corridors with handrails, and a variety of seating in classrooms and sitting areas to fit different individuals’ needs. Washrooms have adequate space for larger wheeled mobility devices to manoeuver and automated features such as toilet flushing mechanisms and faucets that help people with limited mobility. Strong directional signs for classrooms and tactile room number signs help with wayfinding. Photo: Michael Elkan.

The rating comes with a scorecard outlining strengths and weaknesses, acting as a roadmap to better accessibility. If a building’s rating achieves a certain level, they may earn either RHF Accessibility Certification or RHF Accessibility Certified Gold. “Improving the lives of people with disabilities means breaking down barriers and creating an accessible environment with the same opportunities for everyone,” says Chair of the RHFAC Advisory Committee and Executive Vice President of Stantec, Stanis Smith. “As an architect, I have long been committed to designing accessible spaces that can be enjoyed, appreciated, and utilized by everyone.” AN ACCESSIBILITY CASE STUDY Marine Gateway is a mixed-use development in South

3 3. Immigration gate ares of Vancouver Airport with multilingual signs. Credit: Subhashish Panigrahi - Own work…/ Wikimedia Commons.

Vancouver offering transit-oriented retail, office, and residential services and spaces. The development is only

A unique benefit of getting rated is learning to see your property from

three years old, and while it meets building code, property

the perspective of someone with a disability. Malley said this new per-

manager Laura Malley wanted to make sure it was able to

spective gave her a great advantage. Egger helped deepen Malley’s

support a diversity of people for years to come. To deter-

knowledge of Marine Gateway’s built environment by guiding her

mine the strengths and weaknesses from the perspective

through every potential barrier or hazard. Identifying and removing

of accessibility, Malley enlisted the help of an RHFAC

these barriers greatly reduces the chances that a using the space will

Professional, Hans Uli Egger.

encounter an issue in your building.

Following the rating, Marine Gateway was awarded RHF

One of the residents of Marine Gateway’s apartment towers has a vision

Accessibility Certified Gold, the highest rating in the pro-

disability and so following the RHFAC rating, Malley is investigating a way

gram, for its many accessible features such as good vehicu-

to embed tactile signals in the plaza’s stone floor to indicate there will be

lar access, escalators and moving walkways, and signage

a change in the terrain—much like the bumps in the middle of a road that

and wayfinding. Equally important to receiving accolades

tell drivers they are moving into the next lane. Not only will implementing

for what was working well, was understanding where

this feature ensure the resident doesn’t injure themselves, it also signals

improvements could be made.

to prospective residents that it is a safe and welcoming place.

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The same applies to the retail spaces at Marine Gateway. The needs of each individual varies, but greater accessibility allows more people to access and support the businesses—not only those with permanent or temporary disabilities, but parents with strollers and seniors too. Malley says she truly learned the value once the entire rating was completed. “Once you’ve been through it, you get the value. The professional alone was worth the price of admission. Anything that can help your building be a little bit better is well worth the money.” THE RHFAC RATING RHFAC has a holistic approach to accessibility, considering a person’s experience from the moment they arrive outside the building. When Kay Meek Arts Centre in West Vancouver was built 15 years ago, it met building code. However, according to Director Rob Gloor, no one who didn’t have to would “subject themselves to the experience of riding in theelevator.” Since getting an RHFAC rating, the centre has received funding to enlarge the elevator among many other improvements.

5 4. and 5. Marine Gateway was awarded RHF Accessibility Certified Gold, the highest rating in the program, for its many accessible features such as good vehicular access, escalators and moving walkways, and wayfinding. Photos: Andrew Latrelle, courtesy Perkins+Will.

The categories for an RHFAC rating are:

YOUR BUILDING. OUR FUTURE.

Vehicular Access: Approaching the Site (Includes parking, passenger

Yes, there is a good business case for Universal Design—it

zone and public transit)

helps business owners and operators employ and serve more

Exterior Approach & Entrance: Approaching the Building and Entrance

customers and ensures they won’t have to redesign or pay for

(Includes pathways, ramps, stairs, entrance)

retrofits, etc.—but there’s also the purely human reason to be

Interior Circulation: Navigating inside the Building (Includes doors, cor-

prioritize accessibility.

ridors, hallways, stairs, and elevators)

When we’re talking about access, we’re talking about human

Interior Services and Environment: Using Facilities inside the Building

rights. It’s about being able to use a building’s facilities with

(Includes lobby, reception, waiting areas, service counters, area acous-

dignity. About choice in where you take your family to din-

tics, and lighting)

ner, and empowerment in going to a store independently.

Sanitary Facilities: Using Sanitary Facilities (Includes washrooms and

Access changes lives, and as someone who has the ability to

showers)

transform the built environment, you can be at the forefront

Signage, Wayfinding, & Communications: Locating Facilities and

this change.

Amenities (Includes general and room signage, directories, and communications)

To learn more about Rick Hansen Foundation Accessibility

Emergency Systems: Exiting the Building Safely (Includes emergencies,

Certification™, book a rating, or register for the upcoming

fire alarms, and evacuation procedures)

RHFAC Accessibility Assessor Fall training, visit RickHansen.

Additional Use of Space: Using Specific Spaces in the Building (Includes

com/RHFAC

workstations in offices, cafeterias, retail outlets)

SABMag - FALL 2019

IS AN EXCELLENT CHOICE FOR ANY GREEN BUILDING PROJECT

Products certiﬁed to SFI are recognized by many leading green building rating programs around the world like Leadership in Energy and Environmental Design (LEED) and Green Globes.

Using wood products from responsibly managed forests is key to any green building project. Third-party forest certification standards, like the Sustainable Forestry Initiative® (SFI), are a proof-point that wood comes from responsibly managed forests that have been managed for multiple environmental, social and economic values — today and into the future. Architects and builders are turning to products certified to the SFI Standard to meet their green building needs. Learn more at: sfiprogram.org/green-building

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Charter Telecom Headquarters

With this corporate philosophy, the companyâ&#x20AC;&#x2122;s primary objective was to create a new headquarters building that would provide its employees with the best possible work environment. To realize this goal, the company was willing to embrace two non-traditional approaches to building design that are still in their infancy in Canada: Passive House and mass wood construction. Both these approach-

Passive House with hybrid construction achieves highest quality environment for employees By Graeme Verhulst

es were made more challenging by the restricted site, which quickly became the main driver of design. On the narrow, 20-metre wide lot, the entire width would have been taken up by a conventional surface parking arrangement with a central drive aisle and two rows of cars, while the ramp to an underground garage would have

Founded 25 years ago, Charter Telecom is a high-tech company that builds, maintains and operates secure, highperformance communications networks and data centre infrastructure for large public and private sector clients around the world. In a sector where employee retention is an ongoing challenge, Charter views its workforce as a family. Many of its staff of over 100 have been with the company for two decades or more.

SABMag - FALL 2019

reduced the number of stalls that could have been accommodated. Instead, the decision was made to minimize the ground floor footprint of the building and to bridge the upper three floors over a drive aisle and single row of surface parking. Zoning required a six metre setback on the west leaving a narrow strip on the east side for shear walls to come all the way to the ground. In a high seismic zone, the resulting lateral forces could not be resolved using light wood frame construction, so a hybrid solution was required.

Cost and schedule constraints, together with potential thermal bridging issues with other materials, led to the choice of wood structure above grade. CLT and glulam were used where the structure was doing hard work, with prefabricated light wood framing where forces were less demanding. Using prefabricated mass wood components required a change in design approach. All consultants had to accelerate their detailed design and resolve potential conflicts using a 3-D model, which was also used to coordinate trades. This was the only way to capitalize on the efficiency and speed of CLT construction, enabling custom milling of each piece in the factory and minimizing modifications on site.

PROJECT PERFORMANCE Heating Demand: 11 kWh/m2a Cooling and dehumidification Demand: 11 kWh/m2a Primary Energy: 117 kWh/m2a Primary Energy Renewable (PER): 52 kWh/m2a Air leakage: 0.6 ACH50 (Design)

1. The Passive House (PH) envelope excludes escape stairs and the ground floor, reducing the overall PH floor area to approximately 1,000m2. The PH compliant area is clad in dark blue and black metal and the exit staircases in white fibre cement panels. 2. With a narrow 20-metre wide lot, the decision was made to minimize the ground floor footprint of the building and to bridge the upper three floors over a drive aisle and single row of surface parking.

PROJECT CREDITS OWNER/DEVELOPER: Charter Telecom ARCHITECT: Waymark Architecture GENERAL CONTRACTOR: Road’s End Contracting LANDSCAPE ARCHITECT: Small & Rossell Landscape Architect MECH./ELEC. ENGINEER: Integral Group Consulting

Drive Aisle

CIVIL ENGINEER: Westbrook Consulting STRUCTURAL ENGINEER: Blackwell Structural Engineers ENERGY MODELLING: Bernhardt Contracting Ltd. PHOTOS: Leanna Rathkelly

Unheated envelope 3 2 1

Heated envelope

Site plan

1 Main Entry 2 Shipping / Recieving 3 Bike Room

Sun shading

SABMag - FALL 2019

Floor plans

4 5

2 2

1 Gathering stair 2 Lab 3 HRV room 4 Washrooms 5 Huddle room 6 Private office 7 Open office - sales/marketing & engineering 8 Coffeestation 9 Boardroom 10 Executive offices 11 Reception 12 Storage 13 Multi-purpose room 14 Kitchen 15 Hospitality suite - living / dining 16 Hospitality suite - bedroom 17 Roof Deck

3 16

Third floor

Fourth floor

3 .Services are exposed and run at ceiling level along the circulation routes, leaving the major spaces largely uncluttered. 4. The central Gathering Stair during construction.

SABMag - FALL 2019

Structure assembly The resulting structure is unusual. The upper floors are supported on the east side by a row of steel columns, while the west side is supported by the narrow ground floor structure, comprising mechanical and storage rooms, stair and elevator shafts and shipping and receiving areas. The two sides are connected below grade by a series of concrete foundation walls and spanned by glulam beams to support the CLT floor deck, acting as a robust shear diaphragm. Steel columns support the west side, tied together by a steel beam to create a moment frame that takes the “twist” out of the building in a seismic event. The ground floor spaces on the west side are separated by CLT shear walls that rise through the building to the roof.

Metal panel cladding (vertical orientation) over 2x2 strapping attached to Tji's

3 4

Weather barrier membrane with seams and penetrations taped with Siga Wigluv

Cellulose insulation (typical)

Tji furring attached to substrate wall

Air-tight / vapour control membrane with seams and penetrations taped with Siga Rissan (green)

Allow for up to 1/2” of billowing within weather barrier membrane after installation of blown cellulose insulation (typical) Membrane Detail at Plate Connection

SABMag - FALL 2019

The structure provides a simple and robust substrate for the

For the escape stairs and elevator shaft, thermal bridging issues and

Passive House envelope. Once the framing was in place, it was

the added surface area for heat loss made including them in the

wrapped by a continuous air/vapour barrier and vertical wood

Passive House (PH) envelope impractical. Instead, the PH envelope

I-joists. Blown cellulose insulation was inserted between the

excludes these stairs and the ground floor, reducing the overall area

joists, a moisture barrier and strapping added, before the exte-

of the PH treated floor area to approximately 1,000m2. This division

rior cladding was installed. This sequence of construction was

is acknowledged architecturally by cladding the PH compliant area

carefully planned in order to minimize the time and expense of

in dark blue and black metal and the exit staircases in white fibre

training trades in Passive House techniques and methodologies.

cement panels.

In this way, the integrity of the envelope was the responsibility of a single subcontractor who installed both the air/vapour barrier

Ventilation is controlled by heat recovery ventilators, one for each

and the insulation, with simplified sequencing.

floor. Solar heat gain through the PH- certified windows on the west wall was originally to be controlled by fixed sunshades, but these had to be eliminated in favour of less expensive solar control film.

Levels 2 and 3 of the building contain the corporate offices and are linked by an atrium space that includes a grand staircase with seating steps to one side. Overlooked by upper floor circulation

Occupied in the fall of 2019, the Charter Telecom HQ will be the

space, this area is an informal meeting place that can accom-

first office building in Canada to meet the Passive House standard.

modate casual encounters or the entire staff. The atrium also

Despite the structural complications resulting from the site con-

acts as a divider between executive offices at the south end of

straints, the cost of the building remains within the expected range

the building and open office areas to the north. The fourth floor

for commercial buildings in this part of Vancouver Island. However,

contains amenity spaces that double as a residential apartment,

with its combination of Passive House performance and mass wood

used occasionally by the CEO or out of town visitors. In addi-

construction, it offers the highest quality environment possible for

tion to social spaces, this area includes a kitchen, bathroom and

occupants.

rooftop patio. Graeme Verhulst is a Principal of Waymark Architecture in Victoria, BC.

Much of the wood is exposed within the building, including the CLT shear walls the ceiling soffits and the glulam beams. Services

5. Ventilation is controlled by Mitsubishi Electric Heating & Cooling heat recovery ventilators. 6. Euroline 4700 Series THERMOPLUSâ&#x201E;˘ PHC Tilt & Turn windows have solar control film at locations along the west wall.

are exposed and run at ceiling level along the circulation routes, leaving the major spaces largely uncluttered.

SABMag - FALL 2019

The Heights, 388 Skeena Street in Vancouver, B.C., is currently Canada’s largest Passive House building

PHC Canada’s first Passive House certified window Manufactured in Delta, BC, and used extensively in single family and multi family Passive House projects throughout the Pacific Northwest Recent projects include: • Charter Telecom Headquarters, Victoria, BC • Valleyview Townhall, Valleyview, AB • The Heights, Vancouver, BC

To find out more, call or visit us

1.800.337.8604

www.euroline-windows.com SABMag - FALL 2019

MARK YOUR CALENDARS

BUILDING

LASTING CHANGE

2020 JUNE 3 – 5, 2020 BEANFIELD CENTRE, TORONTO 46

For sponsorship opportunities contact | Sarah Burns | 613-288-8097 | sburns@cagbc.org

SABMag - FALL 2019

The winners of the 2019 Canadian Green Building Awards

NATIONAL SPONSORS

The Awards presentation of the 2019 Canadian Green Building Awards, the annual program of Sustainable Architecture & Building [SABMag], took place in Vancouver on May 27, 2019 where the winning firms were recognized. We especially thank our sponsors who make the Awards possible.

ARCHITECTURAL CATEGORY SPONSORS

1. Muhammad Kashif (right) of Category Sponsor Mitsubishi Electric Sales of Canada presents the Commercial/Industrial [Large] Award for the Evolv1 Building to Dr. Andrea Frisque of Stantec.

1 6

2. Jennifer McGill (right), of National Sponsor Masonite Architectural, presents the Institutional [Large] Award for the Okanagan College Trades Renewal and Expansion Project to Michael Leckman of Diamond Schmitt Architects Inc. 3. On behalf of National Sponsor The Canadian Precast Prestressed Concrete Institute, juror Ron Kato (centre) presents the Commercial/Industrial [Small] Award for the Sechelt Water Resource Centre to Brian Wakelin (left) and Robert Drew of Public Architecture + Communication.

4. Ron Kato (right), representing Category Sponsor Enbridge Gas Inc., presents the Existing Building Upgrade Award for the Wellington Building Rehabilitation to David Clusiau of NORR Architects and Engineers. 5. On behalf of National Sponsor, the Canadian Precast Prestressed Concrete Institute, juror Lisa Bate (left) presents the Technical Award for the City of Calgary Composting Facility to Megan Leslie of Stantec.

3 8

7. On behalf of Category Sponsor Inline Fiberglass, juror Lisa Bate (left) presents the Residential Building [Large] Award for the Duke Apartment Building to Mark Ostry (second left) and Russell Acton (far right) of Acton Ostry Architects Inc. Pete Edgar of building owner Edgar Development Corp. is second right.

Visit https://sabmagazine.com/ awards/winners for more details.

6 Jennifer McGill (centre) of National Sponsor Masonite Architectural presents the Institutional [Small] Award for the Radium Hot Springs Community Hall and Library to Shelley Craig and Jordan Edmonds of Urban Arts Architecture Inc.

For details on sponsoring the 2020 Canadian Green Building Awards contact dgriffith@sabmagazine.com.

8. Representing National Sponsor the Canadian Precast Prestressed Concrete Institute, juror Ron Kato (right) presents the Existing Building Upgrade Award for the Bank of Canada Renewal to Zeina Elali (left) of Perkins+Will and Colleen Sullivan of the Bank of Canada. 9. Lindsay Oster (left), principal of Prairie Architects Inc. receives the Institutional [Small] Award for the Building Blocks on Balmoral at Great West Life from Jennifer McGill of National Sponsor Masonite Architectural.

SABMag - FALL 2019

MAKING BUILDING PERFORMANCE A SELLING POINT, AND MOVING ON FROM THE GLASS TOWER By Richard Witt, Executive Principal, Quadrangle & Michelle Xuereb, Director of Innovation, Quadrangle

Michelle Xuereb

Richard Witt

Sustainable building design is not a new concept. With the development and implementation of LEED in the early 1990s, sustainability became mainstream but has struggled to effect real change in the way we think about building performance, requirements or aesthetics. Economics and sustainable building design are at odds – sustainability is an extra cost, weighed against budget and relative value. The Council of Tall Buildings and Urban Habitat concluded in their study Downtown High-Rise vs. Suburban Low-Rise Building that recently completed buildings significantly underperform in comparison to their counterparts from 50 years ago. The days of the glass skyscraper are coming to an end. Passive systems direct the way forward, as opposed to compensating for inefficiency with active systems.

Passive solutions allow us to both mitigate and adapt to changing weather. Based on the Climate Driver Study completed for the City of Toronto, we know that days are getting hotter, there are more of them and there are more of them strung together in heat waves. We are also experiencing larger storms, with heavier amounts of precipitation falling at once. The main issue we will have with 1

our buildings is overheating and flash flooding – both in combination with power outages. This again reinforces the need for passive design solutions.

1. In Quadrangle’s project “St. Clair Village” a punched window aesthetic has been designed to have window shapes and sizes which reduce the window-to-wall ratio and are also slightly different to respond to their aspect (north, south, east, west).

These power outages generally happen on our hottest and coldest days as a

Buildings are the key contributor and solution to climate change mitigation and adaptation.

The City of Toronto recommends that people be able to function independently

According to the latest inventory release (2017)

homes.

result of people cranking their AC or heating. The higher the total effective R-value of the building, the better they are able to maintain the indoor air temperature in the case of extreme temperatures without power.

for a minimum of 72 hours without power. In a residential building, maintaining indoor temperature is key to allowing people to shelter in place within their

by The City of Toronto, 52% of GHG emissions in

Toronto come from buildings, predominantly from

• At a basic level, a building is meant to shelter people from the weather – to

burning natural gas to heat indoor spaces and water.

keep people warm when it’s cold and cool when it’s hot. Glass is a very poor

Consequently, buildings must also be a climate change

insulator, leaving residents feeling physically uncomfortable and paying high

solution. The City of Toronto recognizes this in its Zero

energy bills.

Emissions Building Framework, which is why the

• As architects, the best thing you can do is reduce the amount of glass and

Toronto Green Standard (TGS) has us on a path to net

increase the amount of well-insulated walls. We understand that keeping win-

zero buildings by 2030. What about the code? There

dows to about 40% of the wall area is the single most effective way to reduce

is a plan to move Toronto to net zero by 2030, but it

the energy footprint of a building. Real walls with windows may seem old fash-

is not clear, given the current political climate, whether

ioned, but they don’t need to be. Our focus is on creating a thoughtful, well-

this proposal will be executed. Passive design solu-

designed building with an aesthetic that lends itself to real walls and windows.

tions increase durability and climate change resilience

• Unlike glass, insulation slows down the movement of heat. This allows you to

while lowering energy usage, embodied energy from

hold onto heat during winter, making people more comfortable and more likely

maintenance, and GHG emissions.

to actually use the spaces at the perimeter of their unit.

SABMag - FALL 2019

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By participating in the Enbridge Savings by Design Workshop, we were able to discuss real costs of choices, both for construction and long-term operating. The overall building massing and layout was set by very complex program and siting restrictions, so the areas in which we benefited greatly were in rethinking storm water management on site, window type and performance, exterior wall assembly, and healthy materials. The mechanical engineering part was also indispensable and so instructive; highlighting important and easy changes, discussing more complex upgrades, and understanding the long-term and performance impacts of our systems, both as climate change worsens and as building systems need replacement and upgrades. The Enbridge charrette provided the perfect opportunity to make clear and informed choices that brought our project to the next level of energy, health and operating performance. It saved construction and operating costs and made for a healthier building. — Chantal Cornu, LGA Architectural Partners

In 2018, Evergreen Brick Works was in the midst of an ambitious effort to transform the historic Kiln Building – and make it carbon neutral by using the right energy at the right time. Early in the process, Enbridge led a Savings by Design workshop for the project. On a fast track project, this provided a tremendous opportunity for the integrated design team to reflect on the early trajectory set in the project, and obtain informed perspectives from invited experts on enhancing it. The workshop also provided a spring board to brainstorm how the Kiln Building project could serve as a catalyst to transform the entire Brick Works campus to be carbon neutral, which has been a longstanding vision of Evergreen. The Savings by Design workshop struck a great balance between both blue sky and detail level thinking. It was informative, fruitful, and an overall positive experience. We’d highly recommend Enbridge’s Savings by Design workshop program for anyone thinking about making more sustainable buildings. — Drew Adams, Associate, LGA Architectural Partners

SABMag - FALL 2019

YOUR LEED V4 QUICK-REFERENCE

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Visit our on-line Directory to see hundreds of listings of companies which supply products and services for sustainable, high-performance building. Listings are organized by Product Category and by LEED v4 Category. Our LEED v4 Directory is created with the help of our partner:

Our 2019 Partners SITE | LANDSCAPING | RAINWATER HARVESTING Molok® Deep Collection™ System Dulux/PPG

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Inline Fiberglass Ltd.

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https://sabmagazine.com/product-directory/ 50

SABMag - FALL 2019

2. and 3. Residences at Portland (left) and CG Tower (right), both in Toronto, have building envelopes which will improve building performance. Better performance is not usually part of the real estate sales campaign, however, this information could, and would, be more available if sellers knew it was important to buyers.

Changing codes, standards, and their implications (GHG, TEDI, EUI).

2. Encourage energy modelling using both current and future

If there is a problem with this building design, why does it persist? That’s

3. Inspire clients with design ideas that integrate passive design

a tough question for a lot of people. All-glass residential buildings have

solutions into the initial concept.

weather files;

been the industry standard for a long time. These buildings are driven first and foremost by capital costs and ROI to the developer. They are cheap

In Quadrangle’s project “St. Clair Village” an evolved punched

and fast to build.

window aesthetic has been designed to have window shapes and sizes which not only reduce the window-to-wall ratio but are

Though the Ontario energy code is quite progressive, there are holes in

also slightly different to respond to their aspect (north, south,

the energy modelling requirements that allow the real impacts of thermal

east, west).

bridging to be missed. This means that window-wall buildings with high window-to-wall ratio (WWR) have continued to meet local codes and

What we can encourage purchasers to do.

standards to date. In the City of Toronto, this is intended to change with

Marketers focus on selling purchasers a lifestyle, but no discus-

the introduction of energy modelling based on absolute values that will

sion takes place about building performance. This is a major

be required for all buildings by the TGS in January, 2020.

issue; we need to educate and empower purchasers to have these conversations. Here are some things we can encourage

We will be required to provide three absolute values – greenhouse gas

people to ask:

emission intensity (GHGi), energy use intensity (EUI), and thermal energy

1. What is the reputation of the developer? Do they have a repu-

demand (TEDI). For a long time, energy modelling has allowed us to

tation for building quality, durable buildings?

trade off high-efficiency mechanical solutions for building envelope.

2. Will this be considered a high-performance building? Is it pre-

These three metrics are intended to change this and balance out decision

dicted to perform better than the current energy code and, if so,

making, ensuring that building envelope is measured both in conjunction

by how much?

with and independently of the mechanical systems. The TEDI will look

3. Is there an estimate of the utility bills available?

at thermal energy load independently of the heating source, so will look

4. Will my unit be able to maintain livable temperatures for a

at balancing heat losses and gains, predominantly through the build-

minimum of 72 hours as recommended by the City of Toronto?

ing envelope and also including ventilation air. GHGi will drive decision

5. Has a durability report been created for the project, and is it

making towards fuel sources with lower emission factors. In Ontario, this

possible to review the predicted maintenance schedule for the

means electricity over natural gas sources.

building?

What we should be doing as professionals.

Asking these questions will prompt a change in the way that

We can build arguments for developer reputation, for risks to developers

buildings are marketed. All three of the Quadrangle projects

with respect to climate change resilience and adaptability, etc., but mar-

illustrated, Residences at Portland, St Clair Village Condos and

kets, such as Toronto, are extremely competitive, and developers want to

CG Tower have a building envelope which will increase building

keep their competitive advantage as much as possible. The message we

performance and ultimately reduce purchase costs, but mar-

constantly encounter is that they would be willing to build high-perfor-

keters haven’t found that narrative increases sales, and better

mance buildings if that is what their competitors were doing because it

performance isn’t a part of the sales campaign. This information

would put them on a level playing field.

could, and would, be more available if sellers knew it was important to buyers.

If the market and codes are not demanding a better-quality building, why would they spend more to build one? As professionals, we have a public duty to be having these conversations so that our clients and purchasers make the right decisions. A few things we can do: 1. Have the tough conversations and advocate for building performance in

Richard Witt is Executive Principal, and Michelle Xuereb is Director of Innovation, both of Quadrangle in Toronto.

your client’s language – ROI, sales, purchaser satisfaction and risk;

SABMag - FALL 2019

´ REGISTER NOW ´ https://sabmagazine.com/awards/register/

FOR THE 2020 CANADIAN GREEN BUILDING AWARDS

THE NATIONAL PROGRAM OF SUSTAINABLE ARCHITECTURE & BUILDING MAGAZINE

The Awards recognize excellence in the design and execution of all types of sustainably-designed, high-performance Canadian residential and non-residential buildings and interiors, both new and renovated. Projects need not be certified under a green building rating system. Register now to receive an Entry Kit.

SCHEDULE

• Deadline for submissions / date limite pour soumettre vos projets March 6, 2020 / 6 mars 2020 • Judging date / délibération des juges March 13, 2020 / 13 mars 2020 • Winners announcement / dévoilement des gagnants June 1, 2020 / 1 juin 2020

ENTRY CATEGORIES - ELECTRONIC SUBMISSIONS ACCEPTED 1. Residential [small] 2. Residential [large] 3. Commercial/Industrial [small]

4. Commercial/industrial [large] 5. Institutional [small] 6. Institutional [large]

7. Mixed Use 8. Existing Building Upgrade 9. Interior Design

RECOGNITION - Winners announced June 1, 2020 in Toronto prior to the start of the CaGBC National Conference - Winning projects published in the Summer issue of SABMag which is also distributed to all attendees of the CaGBC National Conference - Winning projects published in the SABMag web site, www.sabmagazine.com, and in the SABMag monthly e-News - All projects submitted will be considered for publishing in SABMag and the CaGBC FOCUS publications

Thanks to our sponsors

National Sponsors

Category Sponsors

SABMag - FALL 2019

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SABMag - FALL 2019

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Passive House on an upward curve Interview with Rob Bernhardt, CEO of Passive House Canada Rob works to advance building energy efficiency. A certified Passive House consultant and the developer of several certified Passive House projects, Rob is familiar with the economic and social advantages of high-performance buildings.

Their momentum and enthusiasm has given us the privilege of assisting all levels of government in building policy development, the ability to support the growth of a national membership of over 1,100 members (in eight provinces and two territories) and deliver hundreds of courses, with over 5,000 registrations across Canada. This appetite for a higher standard of building bridged partnerships resulting in the launch of Canada’s first Zero Emissions

What is a Passive House Building and how does it work in Canada??

Building Exchange in Vancouver and a successful inaugural

Passive House (Passivhaus) is considered to be the most rigorous vol-

national conference with over 350 delegates attending each year.

untary energy-based standard in the design and construction industry today. They consume up to 90 percent less heating and cooling energy than conventional buildings. It is recognized internationally as the proven best way to build for comfort, affordability and energy efficiency of residential, institutional and commercial buildings, through all stages of design, construction, and livability.

Why do you think people are making the change to Passive House buildings? While the initial driver is, of course, environmental and the common goal to mitigate climate change, this alone does not catalyze market transformation, represent the motivation of everyone involved, or simplify the process of managing change.

The Passive House approach works because it’s a pragmatic combina-

For many, the primary motivation is a desire to have better

tion of applied building science and economics. Designs and compo-

buildings. The unparalleled comfort, health, durability, resilience

nents vary to suit the local climate, enabling comparable levels of com-

and affordability of buildings offering Passive House levels of

fort, hygiene and performance in varied climates. All Passive House

performance are reason enough to make the choice. Affordable

buildings are designed using detailed energy modelling software,

housing advocates may focus on the reduced costs of owner-

which allows the design team modify the architecture and specify the

ship, operation and utility costs to tenants, homeowners on the

combination of insulation and components required to bring a building

comfort, while absolutely everyone craves a constant supply of

to the required performance standard in their own climate zone.

filtered fresh outdoor air.

Why was Passive House Canada created?

Some professionals, developers and trades are attracted by

Passive House Canada was incorporated by practitioners wanting to

the quality of work such buildings entail and enjoy the pride of

transform Canada’s buildings, making the multiple benefits of high per-

workmanship. Others know high performance building regula-

formance buildings the norm. We started with few high-performance

tions are coming and are looking for a competitive advantage,

resources in Canada but have ramped up resources through education-

a market differentiator, in establishing their company brand.

al services, events, advocacy and communications over the few years

Increasingly, some are simply responding to the developing

we have existed. With time Canada’s policy, regulatory and incentive

market for Passive House buildings and their components, which

environment has become very support of Passive House as the level of

they know will grow.

building efficiency required for Canada to meet its Paris commitments become apparent.

Why do you feel Canada is winning in the change to Passive House building?

Why do you think the movement has been successful so far?

During our 2018 conference, the federal government took the

The successes that we have experienced are directly attributable to

opportunity to say it is probable that the final tier of the Net

the dedication of industry professionals and elected officials who are

Zero Energy Ready Code will be very close to Passive House

passionate about sustainability.

standards. This is a significant win for Canada, and with recent budget support we can see our national buildings strategy taking root across cities and provinces, nationwide. We know our role at PHC will change and likely diminish as building codes and standards approach Passive House performance levels and we can’t think of a better reason to become redundant. Taking a “mission first” approach enables more rapid progress, facilitating collaboration with industry and consumers in addition to government. We can best achieve our mission by collaborating with aligned groups and individuals, and we invite you to do the same.

Dik Tiy Independent Living Facility, Smithers, British Columbia.

SABMag - FALL 2019

Uniting the house of design with the field of construction Uniting the house of design with the field of construction

University of Ottawa Learning Centre EQUITONE [tectiva], VIVIX phenolic, Fiandre Porcelain and TcLips™ Architect: HDR MaRS Building Photo: Curt Clayton

Engineered Assemblies

Photo: Shai Gil B+H Architects

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Engineered Assemblies Engineered Assemblies Assemblies Engineered Engineered Assemblies (EA) supplies world-class facade materials Engineered Assemblies ngineered Assemblies Engineered Assemblies (EA) in supplies world-class facade materials backed backed by leading expertise Rear-Ventilated Rain Screen (RVRS) Engineered Assemblies Engineered Assemblies Rain Screen (RVRS) sub-structure by leading expertise in Rear-Ventilated Engineered Assemblies (EA) supplies facade materials sub-structure assemblies. Through theworld-class spirit of partnership, EA delivers lunch and learns, mockups, samples, Engineered Assemblies understands and BIM software, panel optimization, etc. Through the spirit of partnership, EA delivers excellence creative ngineered Assemblies the ofassemblies. partnership. •promotesprovides EAphilosophy extensively-detailed, backed by leading expertise in Rear-Ventilated Rain Screen (RVRS) excellence in creative design possibilities, bringing imagination toinlife. We maintain cooperative presence stamped shopa drawings and thermallyand focusfaçade on achieving the design desired goal; broken solutions. possibilities, bringing imagination to life. completing a project on timesub-structure and on budget assemblies. Through the spirit of partnership, EA delivers

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Contact us today at info@engineeredassemblies.com excellence in creative design possibilities, bringing imagination to life. Contact us today at info@engineeredassemblies.com EngineeredAssemblies.com | 1 866 591 7021 | #brilliantbuildings EngineeredAssemblies.com | 1 866 591 7021 Contact us today at info@engineeredassemblies.com EngineeredAssemblies.com | 1 866 591 7021 | #brilliantbuildings Aluminum façade

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EA benefits from twenty years of industry experience. From detailing to field installation practicality; EA provides a keen eye on design and a strong handle on the limiting factors of the field. EA SYSTEMS

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EA SYSTEMS EA HIGH-PERFORMING FAÇADE LINES • Thermally Broken TcLip Subsystem • Fibre Cement Equitone façade • Fastener Hidden System (HF) • Natural Wood Parklex façade • Ventilated Rear Rain Screen Systems • PorcelainFiandre façade (RVRS) • Solid Phenolic Vivix façade • systems work EAwith all EA Façade • Ceramic façade Tonality lines. • Zinc, Copper, Corten, Stainless Steel & Aluminum façade EA HIGH-PERFORMING FAÇADE LINES • Daylighting solutions CPI • • • • • •

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SABMag - FALL 2019