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Industry News, Products, People, Events
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Let’s talk about building prosperous, low carbon, climate resilient communities.
SUMMER 2017
Concrete Council of Canada Supplement 17
2017 Canadian Green Building Awards The 9 winning projects: - Amber Trails - De Waal House - Eva’s Phoenix - Gare Fluviale - Lockeport Beach House - Marine Gateway Development - River City Phases 1 & 2 - Sir John A. Macdonald Building - Queen Richmond Centre West
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Interview with Alex Speigel
The greenest buildings are actually conversions 46
issuE DON’T MISS next FALL 2017 Engineering Students Centre, Vancouver “Living Lab” design showcases innovative engineering strategies Continuing Education: Universal Design as Social Sustainability Design Practice: Multi-Storey Passive House Top right: Our 2017 jury: Keith Tufts, Johanna Hurme, Steve Kemp and Rodney Wilts. Photo: Roy Grogan. Bottom right: Engineering Students Centre, Vancouver BC. Cover: The nine winning projects of the 2017 Canadian Green Building Awards. sabMag - SUMMER 2017
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DI S T RI BU T ED BY DO BBI N S ALES info@dobbinsales.com 4
sabMag - SUMMER 2017
Dedicated to high-performance building LEED EDUCATION PROVIDER
Member Canada Green Building Council
CELEBRATING THE 2017 CANADIAN GREEN BUILDING AWARDS The quality of the entries in this year’s awards program was particularly high, and there was keen
SABMag is a proud member and official media partner of the Canada Green Building Council.
competition in each of the nine categories. The winning entries are inspiring for their breadth of ambition and the spectrum of scales that
VISIT www.sabmagazine.com
they represent.
Publisher Don Griffith 800-520-6281, ext. 304, dgriffith@sabmagazine.com
The massive mixed-use development at Marine Gateway in Vancouver has all the components of
Editor Jim Taggart, FRAIC 604-874-0195, architext@telus.net
a complete community, and is poised to become photo: Roy Grogan
MARKETING MANAGER Denis Manseau
the focus of a new brownfield neighbourhood; whereas the de Waal House in Edmonton illus-
800-520-6281, ext. 303, dmanseau@sabmagazine.com
trates one family’s commitment to sustainability
Senior Account Manager Patricia Abbas 416-438-7609, pabbas8@gmail.com
that draws heavily on off-the-shelf technology and local labour.
Graphic Design Carine De Pauw 800-520-6281, ext. 308, cdepauw@sabmagazine.com
approach to programming and design can extend the reach of a school
The Amber Trails Community School in Winnipeg demonstrates how a holistic beyond the physical boundaries of its site; while Eva’s Phoenix in Toronto creates a supportive and self-contained community for at-risk youth within
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the walls of an existing warehouse.
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Queen Richmond Centre West, in Toronto’s entertainment district, is a creative and compelling example of urban densification that respects its heritage context; while the restoration of the Sir John A. Macdonald Building in Ottawa takes this concern to a more detailed level, integrating new building systems into historic architectural elements. Also in Toronto, River City Phase 1 and 2 addresses the challenges of living sustainably within a dense urban environment; while the Lockport Beach House on the Nova Scotia coast offers an alternative view of ‘touching the Earth lightly’. Last but not least, the Gare Fluviale, a ferry terminal in Lévis, Québec, is a simple, elegant and transparent
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pavilion that celebrates its dramatic setting and elevates the experience of the
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daily commute for two million passengers per year.
Copyright by Janam Publications Inc. All rights reserved. Contents may not be reprinted or reproduced without written permission. Views expressed are those of the authors exclusively.
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the careful evaluation of all the entries. We also thank our valued sponsors,
The print version of SABMag uses Rolland Enviro 100 Satin, a 100% post-consumer fiber that is certified FSC and EcoLogo. It is processed chlorine-free, FSC-recycled and is manufactured using biogas energy.
ity Specialist, RDH Building Science, Toronto; Keith Tufts, Principal in charge, Lydon Lynch Architects, Halifax; and Rodney Wilts, Partner, Windmill
shown below, who make the Canadian Green Building Awards possible.
Jim Taggart, FRAIC, Editor
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NEWS CHBA announces Net Zero Home Labelling Program The Canadian Home Builders’
Organizations, Energy Advisors
has
and Trainers will work directly
its Net Zero Home
with the builders and renova-
Labelling Program which rec-
tors to design, model, test and
ognizes Net Zero and Net Zero
inspect each home.
Association launched
[CHBA]
Ready Homes, and identifies the
- Builders and Renovators can
builders and renovators who
learn more about the Program at
provide them. A pilot version
www.chba.ca/nze.
of the Net Zero Home Labelling
- Consumer information on
Program ran from September
the Program can be found at
2015 to December 2016 to vali-
www.NetZeroHome.com. - Information on the Net Zero
date technical and administra-
Council can be found at www.
tive details. A national network of CHBA Net
Zero
Qualified
RAIC announces recipient of the 2017 Green Building Award
chba.ca/nzc.
Service
The Bibliothèque du Boisé in Montreal’s Saint-Laurent borough, inaugurated in 2013 and designed by Cardinal Hardy | Labonté Marcil | Eric Pelletier architecte in consortium. [Eric Pelletier architecte and Cardinal
The LEED® Platinum certi-
Hardy joined Lemay in 2013 and
fied building covers 6,000 sq.m
2014, respectively.] has received
and brings together multiple
the 2017 Green Building Award.
functions: a library, administra-
Given by the Royal Architectural
tion, exhibit space and museum
Institute of Canada [RAIC] and
archives.
the
ADS IN THIS ISSUE 2 4 6 7 8/47 9
Inline Fiberglass Elkay Greenscreen Aquatech Canadian Precast Prestressed Concrete Institute Concrete Council of Canada Supplement
13 Masonite Architectural 15 SFI 16 Uponor 23 Sloan 27 Zinco/RJC/Duxton 48 Forbo
Canada
Green
Building
Sustainability
strategies
Council® [CaGBC], the Award
include a passive heating system
recognizes
outstanding
which uses the heat accumu-
achievement in buildings that
lated in a glass prism for redis-
are environmentally responsible
tribution through a geothermal
and promote the health and
loop. The building relies mostly
wellbeing of users.
on natural light, combined with
The project also received a
task lighting, for energy sav-
Canadian Green Building Award
ings. The project emphasized
in 2014 from SABMag and the
the use of certified wood, low-
CaGBC. http://www.sabmaga-
emitting materials, and recycled
zine.com/winners2014.html
or regional materials.
Congratulations to all the winners of the 2017 Canadian Green Building Awards.
The leader in green facade technology since 1993 Visit our website or call 800.450.3494 to discuss your trellis project with our experienced team of project managers. resources for design, detailing and delivery @ CA NADA LINE, VANCOU V E R , BC
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sabMag - SUMMER 2017
greenscreen.com
NEWS CPCI releases New guide for energyefficient building design
increasingly significant role in the
Baillargeon Doors and Harring Doors join Masonite Architectural family
energy efficiency requirements contained in Canadian building codes. Understanding and meet-
ARCHITECTURAL
ing these requirements has also become increasingly complex for building designers. The Canadian Precast
Prestressed
Institute's
[CPCI]
Concrete
new
guide,
Meeting and Exceeding Building Code
Thermal
Requirements,
Performance is
a
crucial
resource for all designers, architects, engineers and building professionals, especially in the early stages of designing a building. The thermal performance of buildings plays an important and
Uponor expands in the U.S. and upgrades Canadian operations Uponor
North
America,
http://www.cpci.ca/files/news_
Canadian-based
companies
Canada. In the coming months
Baillargeon Doors and Harring
Masonite
Doors have joined Masonite
launch a new product portfolio,
Architectural which has intro-
establish manufacturing centres
duced a new logo and incor-
of excellence, rebrand its mar-
porated all of its brands under
keting support materials, and
one roof.
provide a more powerful web
Baillargeon and Harring will
presence with intuitive product
remain the major sources for
selection and specification tools.
wood
masonitearchitectural.com
doors
and
frames
in
Architectural
will
events/news/1491990595_1.pdf
Correction
a
leading supplier of plumbing, fire safety, radiant heating/cooling, hydronic piping and pre-insulated piping systems for the resi-
dential and commercial build-
Mississauga, with satellite offices
ing markets, is expanding its
in Vancouver, Calgary, Québec
Aspen
manufacturing facility in Apple
and
The
which appeared in the Spring,
Valley, Minnesota to an addition-
Mississauga location will offer
2017 issue of SABMag, was
al 58,000 sf to meet customer
training classes and engineering
incorrectly
demand. It is also consolidating
continuing education units.
with
the Canadian head office with
bradfield.craig@uponor.com
Architecture in Winnipeg. http://
its eastern distribution centre in
Atlantic
Canada.
Henry Tufts, author of the Root
Passive
identified.
House
He
is
BridgmanCollaborative
bit.ly/2qk0KVn
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The Canadian Precast/Prestressed Concrete Institute (CPCI), the National Precast Concrete Association (NPCA) and the Precast/Prestressed Concrete Institute (PCI) recently released Environmental Product Declarations (EPDs) in three key precast concrete product categories. The EPDs will allow architects, engineers, building owners, and other specifiers to better understand the environmental impacts of precast and prestressed concrete products. An EPD is an ISO-compliant and third-party verified, standardized and internationally recognized comprehensive tool for providing information on a product’s environmental impact. The precast concrete industry wide EPDs are now available for Architectural and Insulated Wall Panels, Structural Precast Concrete Products and Underground Precast Concrete Products. Download the precast concrete EPDs: www.sustainableprecast.ca | precast.org | pci.org
The members of CPCI, NPCA and PCI are proud partners of these two North American industry sustainability initiatives:
ENVIRONMENTAL PRODUCT DECLARATIONS FOR PRECAST CONCRETE NORTH AMERICAN PRECAST CONCRETE SUSTAINABLE PLANT PROGRAM
.ca
CPCI – Canadian Precast/Prestressed Concrete Institute 8
@CPCI_Canada
CPCI_Canada
sabMag - SUMMER 2017
.ca
The Broad Museum, Los Angeles, California. Architect: Diller Scofidio + Renfro.
Let’s talk about building prosperous, low carbon, climate resilient communities. Communities are where we live our lives, share ideas and create a sense of belonging. But communities, like every other aspect of our society, are facing climate change challenges. Our buildings and community infrastructures need to deliver on a new level of complexity, as do the materials they rely on. Literally the foundation of modern society, concrete plays a vital role in our daily lives and the communities in which we live. The cement and concrete industry share responsibility for shaping communities that can thrive and prosper in what must be a low carbon, climate resilient future. Let’s discuss what we are doing on that topic as well as some of the inherent attributes of cement and concrete that contribute to low carbon, climate resilient development.
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A proactive climate change partner The concrete industry works with government and environmental groups to support smart regulatory policies on climate change, including a price on carbon. We are an active advocate of innovative strategies — such as integrating Life Cycle Costing and Life Cycle Assessment into the design process — that help the costeffective transition to a low carbon and resilient future. We are committed to transparency and have registered Environmental Product Declarations for cement and concrete products.
Lower carbon footprint Our industry is continuously innovating to reduce the carbon impact of our manufacturing processes. Over the last twenty years, the cement sector has modernized its facilities and processes, reducing the energy required to make a tonne of cement — the essential ingredient in concrete — by about 20%. Today, we are also pursuing these three strategies to further reduce our footprint: Lower Carbon ContempraTM cement – Engineered for a lower carbon future, Contempra reduces CO2 emissions by 10% compared to traditional cement, yet produces concrete of equivalent strength and durability. Reliable and time-tested concrete mix designs require no significant changes, but now have a reduced carbon footprint. Contempra is rapidly becoming the preferred standard for new construction projects. Once it is more widely adopted across the country, it could reduce Canada's greenhouse gas emissions by up to 1MT annually. This is equivalent to avoiding the combustion of 347 million litres of gas or planting 23 million trees. Contempra is referenced in
the National Building Code through the CSA A.23.1 standard under the name Portland-limestone cement. Low or zero carbon fuels – The cement sector is transitioning to low or zero carbon fuels such as those derived from the waste stream, including: construction, demolition and agricultural waste and non-recyclable plastics. Low carbon fuel technologies are used commonly in Europe where some facilities have achieved reductions of up to 50% in the carbon intensity of their fuel mix. Working closely with governments, environmental groups and innovative industry partners, the Canadian cement sector is pursuing low or zero carbon fuels as the first among near and mid-term strategies to lower our carbon footprint. Achieving current global best-in-class fuel substitution rates could reduce cement industry GHGs by another 20% — about 2MT per year — in Canada. Carbon Capture and Utilization – Carbon capture and utilization (CO2U) technologies offer some of the most promising long-term solutions to deep reductions in carbon emissions. CO2U technologies have multiple potential applications in the cement and concrete manufacturing value chain. From carbonated concrete to algaebased carbon recycling, we are deeply invested in exploring CO2U technologies and related innovations that could help transform concrete from a carbon emitter into a carbon sink. As the most consumed material on the planet after water, low-carbon or possibly even carbon-negative concrete would be a major step forward in the transition to low-carbon, climate resilient communities.
Centre Hospitalier Universitaire de Sainte Justine, Montreal. Architect: Provencher_Roy / MSDL Architectes. Some 80 000 m3 of Contempra-based concrete were used for this project, reducing GHGs compared to concrete produced with traditional cement.
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A naturally energy efficient material Depending on its location, the operational energy needs of a typical building in Canada can account for 90% of its carbon emissions, largely from heating and cooling energy demands.
of fresh outdoor air to dramatically improve indoor air quality while keeping energy consumption well below the industry average (about 40%-50% less energy than a conventional school).
Naturally energy efficient, concrete unlocks enormous energy efficiency opportunities to reduce these demands. Its thermal mass results in passive energy savings of up to 8% compared to other building materials. Used strategically and integrated with smart design and technologies, concrete’s thermal mass has reduced the operational energy needs of large commercial buildings like Manitoba Hydro Place (MHP) by over 70%. MHP’s 22-storey, 64,590 sq. metre tower in Winnipeg integrates time-tested environmental concepts with advanced technologies and the art of architecture. At its core is an innovative “solar chimney” that, in combination with geothermal radiant heating and cooling systems to activate the thermal mass of the building’s 35,600 metres3 of concrete, allows the building to coast through outdoor temperature changes, shift peak energy demand and achieve an overall 70% efficiency improvement over the Model National Energy Code for Buildings. This strategy is saving MHP $500,000 per year in operating expenses while supporting 100% fresh air circulation, 24 hours per day, 365 days per year — even in the depth of Manitoba’s winter.
Thermal storage works intuitively with a fan-assisted ventilation system that pushes treated fresh air through a series of main ducts fed into branch ducts formed within the hollow core slabs of ceilings or floors.
On the residential front, Ontario-based Del Ridge Homes combines innovative energy conservation techniques with solar panel and geothermal heating technologies so its buildings feed as much energy back into the environment as they consume from the grid. The insulated concrete forms minimize air leakage and take advantage of concrete’s thermal mass. This helps maintain moderate temperatures in the hallways and stairwells and minimizes temperature fluctuations, lowering the operational energy per suite to 4.1 kwh/sf per year.
Manitoba Hydro Place, Winnipeg. Architect: Kuwabara Payne McKenna Blumberg Architects. Smart design, a solar chimney, geothermal heating and cooling systems and concrete's thermal mass come together to maximize energy efficiency.
Another example of great energy efficiency is Mundy's Bay Public School in Midland, Ontario. The school uses precast concrete hollow core slabs between the floors and ceilings, coupled with heat recovery ventilation and a ground-source heat pump, to create an innovative "on demand" system for capturing, storing and releasing naturally occurring heating and cooling energy. The concrete behaves like a battery, absorbing and eliminating indoor heat during summer days to keep indoor temperatures cool and comfortable while lowering demand peak air conditioning loads. In winter, the same principle works in reverse, drawing heating energy from the ground-source heat pump. Thermal energy storage also facilitates greater circulation
Del Ridge Homes' GreenLife Condominiums project in Milton, Ontario was constructed using insulated concrete forms to minimize air leakage and take advantage of concrete's thermal mass. COVER: The Broad Museum, Los Angeles, California. Architect: Diller Scofidio + Renfro. The Museum is enveloped on all sides by an airy cellular exoskeleton structure made up of 2500 glass-fiber-reinforced precast concrete panels that span across the block-long gallery to provide the building its unique filtered natural daylight. sabMag - SUMMER 2017
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A naturally resilient material Scientific research indicates that our climate will continue to change, with rising temperatures and sea levels, fluctuating rainfall and snowfall patterns, and more unpredictable extremes ranging from floods to droughts and wildfires to freezing winters. These weather conditions can have significant impacts on our communities. Buildings and community infrastructure must not only resist damage caused by adverse events, they must also be in a condition suitable for occupancy as soon as possible. More and more of our communities are developing multi-faceted plans to mitigate and recover from natural and other disasters. Those plans must include conscientious construction methods using durable, resilient, sustainable materials. Concrete products are such materials. For one, concrete’s thermal mass allows buildings to remain serviceable for longer periods of power disruption (i.e. “passive survivability”), even in extreme heat or cold. When the heating valve of the Mundy’s Bay Elementary School building was inadvertently closed for 11 hours during an occupied period while outdoor temperatures were freezing, the indoor air remained in the comfort zone for the entire duration with no spikes, validating the resilience of the system. Concrete is designed to absorb large static and dynamic loads and resist damage due to snow, flooding and fires. Wall, floor, and roof systems constructed of concrete products offer an unsurpassed combination of structural strength and wind resistance. Add hardened exterior finishes for walls and roofs and a home or business will have the best combination of strength and security available. Concrete products are resistant to wind, hurricanes, floods, moisture and fire. As a structural material and building exterior skin, concrete products have the ability to withstand nature’s normal deteriorating mechanisms as well as natural disasters. Properly designed, concrete products are resistant to extreme loading conditions such as earthquake and blast loads.
Innovative solutions Concrete is known for its historic strength, resiliency and versatility. We retain and capitalize on these attributes as we work to reduce the carbon footprint and enhance the climate resilience of our buildings and communities. One example is ultra-high performance concrete (UHPC) which permits the construction of exceptionally light, strong, and durable structures using less concrete more efficiently. Another example is photocatalytic concrete, in which photocatalysts keep concrete clean and depollute the air.
Build for a better tomorrow There is no one quick fix in addressing climate change and building a better tomorrow. From a built environment perspective, better communities will be the result of many solutions that take into consideration reduced carbon footprints and much needed long-term resilience. We take our responsibility for shaping tomorrow’s communities seriously. For more information visit rediscoverconcrete.ca.
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Argyll House West, Vancouver School of Theology, University of British Columbia. Architect: Ramsay Worden Architects Ltd. Argyll House West exemplifies solid construction. Concrete was used for its durability and constructability, its aesthetics and benefits to occupants.
University of Alberta. Architect: Dialog. Ductal Ultra-High Performance Precast Concrete made the architectural features of this building possible, its strength providing the capacity to carry the gravity, wind and seismic loads while keeping an unobtrusive shallow thickness.
ARCHITECTURAL
Open to extraordinary
TM
Our advertisers in this issue who supplied some of the winning projects of the 2017 Canadian Green Building Awards:
HAVE A COMPLICATED DOOR DESIGN? WE TAKE PRIDE IN MAKING THE SEEMINGLY IMPOSSIBLE — POSSIBLE
Amber Trails Community School Uponor in-floor radiant system, Elkay drinking fixtures, Duxton fibreglass-frame windows, Cooper-Eaton lighting
Sir John A. Macdonald Building Sloan plumbing fixtures, Altex roller shades, Masonite Architectural [Baillargeon Doors]
Gare Fluviale Altex roller shades, Cooper-Eaton lighting and lighting controls
Lockeport Beach House Uponor in-floor radiant system
De Waal House Duxton Windows and Doors
River City Phases 1 & 2 Zinco green roof [sedum carpet and perennial garden]
Marine Gateway Development Greenscreen exterior vegetated screen, Sloan plumbing sensors
MASONITEARCHITECTURAL.COM
sabMag - SUMMER 2017
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YOUR LEED V4 QUICK-REFERENCE
Canadian Directory OF Products and Services for Sustainable, High-Performance Building
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 2017 Partners Site | Landscaping | Rainwater harvesting >Catec Rainwater Harvesting Systems >Langley Concrete Group >Molok® Deep Collection™ System >Unilock >Wishbone Industries Ltd. Structure & Exterior envelope >Alumicor Building Excellence >Bailey Metal Products Ltd. >Dryvit Systems Canada >Euroshield® >Hydrotech >LiveRoof >StoneRox >Tremco Thermal & Windows >Cascadia Windows & Doors >Eco Insulating Glass Inc. >EuroLine Windows® >Inline Fiberglass Ltd. >LiteZone™ Insulating Glass >Pollard Windows Inc. >View Dynamic Glass Interior finishes >Baillargeon Doors Inc. >CBR Products >Columbia Forest Products
>Forbo Flooring Systems >Interface >Nora Systems, Inc. >Shaw Contract Group >Tectum Electrical | Plumbing | HVAC | Renewables >Acuity Brands >Aqua-Tech >Duravit >Simple Solar >Sloan Valve >Taco Comfort Solutions >Tate Access Floors >Termobuild >Uponor >Ventacity Systems >Viessmann Manufacturing Company Inc. >Zehnder America Inc. green design support + professionals >Canadian Precast/Prestressed Concrete Institute >Diamond Schmitt Architects >FABRIQ architecture >Pinwheel Building Supplies >RJC Engineers
http://sabmagazine.com/2017directoryv4.html
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Projects that seek the highest standards of sustainability, by designers committed to integrating sustainable design.
Stay informed with SABMag e-News Add your name to the distribution list of the monthly SABMag e-News. Stay up-to-date on news, seminars and events related to high-performance building, notifications about the Canadian Green Building Awards, and more. Reply to dgriffith@sabmagazine.com UBC Student Union Building Vancouver, BC Projected LEED® Platinum, incorporating elements of the Living Building Challenge.
rjc.ca
SFI IS A CORNERSTONE OF GREEN BUILDING Using wood products from responsibly managed forests is key to any green building project.
Using wood in beautiful ways and featuring wood windows certified to the SFI Standard, has earned Hacker the fourth SFI Award part of the 2016 North American Wood Design Awards Program for the Lakeside at Black Butte Ranch in Oregon.
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.
PROMOTING RESPONSIBLE FORESTRY THROUGH GREEN BUILDING PROGRAMS Builders and architects can now use wood and paper products certified to SFI to achieve a LEED point in USGBC’s Alternative Pilot Credit. sabMag - SUMMER 2017
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Award-winning projects find in-floor radiant heating meets need for sustainable technologies Two of the award-winning projects of the 2017 Canadian Green Building Awards, the LEED Platinum Amber Trails Community School in Winnipeg and the Lockeport Beach House in Lockeport Beach, Nova Scotia, opted for an Uponor in-floor radiant system.
1 The mechanical engineers for Amber Trails, MMM Group Ltd., noted that the in-floor system: - is well suited to buildings with a high-performance envelope and correspondingly low heating loads - heats the objects in the room and not the air to provide superior comfort when compared to forced air systems that move air, dust and allergens - can provide more comfortable and quieter heating than overhead hot air – both very beneficial in classrooms, and - uses low-temperature heating water, making it well suited to the ground source heat pump system used at Amber Trails. The Manitoba Public Schools Finance Board endorses the use of in-floor systems and, in the case of the Amber Trails School, Uponor successfully met the engineering specifications, and price of the competitive bid process. the uponor system on display at the amber trails school. Photo: Click Studio [1]. At the Amber Trails School the Uponor radiant floor improves the operating efficiency of the heat pumps by being piped in series so as to return the coolest possible water to the heat pumps and maximize their operating temperature differential. Photo: MMM Group Ltd. [2]. THE FINISHED FLOOR OF The Lockeport Beach House CONTAINING THE UPONOR IN-FLOOR RADIANT SYSTEM. Photo: Janet Kimber [3]. The IN-FLOOR system DURING INSTALLATION. Photo: Conrad's Plumbing [4].
2
In the case of the Lockeport House, Architect Nova Tayona wanted the superior comfort and improved energy efficiency qualities of an in-floor system and found that Uponor has the best hex pipe/fittings system on the market. Radiant systems can reduce overall building energy usage in a number of different ways. For one, because the heat-transfer capacity of water flowing through polyethylene [PEX] piping loops embedded in the concrete floor is much higher than that of air, a radiant system that uses a circulator to move water [in lieu of a fan to move air] can achieve the same heat transfer using significantly less energy. Also, because of the way the human body exchanges heat with its surrounding environment, a radiant system can achieve comparable levels of comfort at lower room temperatures for heating and higher room temperatures for cooling. In fact, studies have shown total energy savings for typical office buildings on the order of 17 to 53 percent. As building owners and jurisdictions continue to demand highperformance buildings, system designers are looking for sustainable solutions to reduce energy usage, while maintaining function. By taking advantage of a building’s thermal mass, an embedded-tube radiant system can be an effective and energy-efficient alternative to a conventional forced-air-only system.
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SPECIAL
N
IAN GR D A2017 AWARDS E
EN
ARCHITECTURAL
National Sponsors
N G
>> Thank you to our sponsors and jury! >>
BUILDI
THE NATIONAL PROGRAM BROUGHT TO YOU BY SUSTAINABLE ARCHITECTURE & BUILDING MAGAZINE AND THE CANADA GREEN BUILDING COUNCIL
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JURY
Photo: Roy Grogan
Keith Tufts, RAIC, NSAA, AANB, LEED® AP, BCOMM Principal in charge, LYDON LYNCH ARCHITECTS
Johanna Hurme, MAA, AAA, OAA, SAA, SAFA, MRAIC, LEED AP Founding partner of 5468796 Architecture
Steve Kemp, M.A.Sc., P.Eng, LEED® AP BD+C Principal, Senior Energy and Sustainability Specialist, RDH Building Science
Rodney Wilts, JD, LEED AP Partner, Windmill Development Group, Ltd.
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C A NA D I
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2017
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AWARDS
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Amber Trails Community School Winnipeg
Jury comments: This project encourages social interaction and community engagement through the physical organization of its multiple programs. Operating before and after regular school hours increases the efficiency of building use, while energy and water consumption reductions of close to 70% are remarkable. Programs such as the community farm raise awareness around broader aspects of sustainability. A community school in the truest sense.
institutional AWARD
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Located in a new and fast-growing neighbourhood of Winnipeg, the Amber Trails Community School recently became the first school in Manitoba, and only the second in Canada, to achieve LEED Platinum certification. Completed in 2015, the new 7,900m2 building is situated in the heart of the community, and challenges existing paradigms about school design. The school, which also acts as a community centre and library for the neighbourhood, offers a comfortable, inclusive environment; with a welcoming entrance that encourages families, many of them new to Canada, to connect with their new community. A combined daycare and early learning centre, daylight-filled learning spaces, with flexibility for different learning opportunities, a fusion of indoor and outdoor environments, common learning centres and outdoor classrooms, reinforce this connection. The school provides public access and incorporates large glazed walls with entrances facing onto the street. These entrances open into the large learning commons, as well as the gymnasium and kitchen. In addition to creating a more intimately scaled environment by breaking the 600 capacity school into four smaller ‘academies’ and inverting the traditional typologies to make the gymnasium and its activities visible from the street, the design also embodies a strategic approach to
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sustainability. Every detail - from the placement and orientation of the building on the site, to the arrangement of the internal program - was carefully considered to maximize energy efficiency and access to daylight.
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Service infrastructure Academic Project Credits Owner Public Schools Finance Board & Seven Oaks School Division Architect Prairie Architects Inc. Structural Engineer Wolfrom Engineering Mechanical/electrical Engineer MMM Group Ltd. Commissioning Agent Integrated Designs Building Envelope Commissioning QCA Building Envelope Ltd. Civil Engineer WSP Landscape Architect HTFC Planning & Design General Contractor Bockstael Construction Photos Joel Ross [1, 2]. CLICK.STUDIO [3, 4, 5]
Community Commons prior to final completion, highlighting the use of sustainable materials [1]. Nature-inspired spiral stair between floors in the multi-level Learning Commons [2]. Main entrance of the school into the heart of the Community and Learning Commons, which acts as both a school and community gathering space [3].
Early learning Community space Physical activity
Floor plan
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Project Performance Energy intensity 91KWh/m2/year Energy intensity reduction relative to reference building under MNECB [1997] 71% Potable water consumption from municipal sources 1,143 L/occupant/year Potable water consumption reduction relative to reference building 67% Regional materials [as defined by LEED] by value 36% Reclaimed and recycled materials by value 20% Construction materials diverted from landfill 86%
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Sloped structure to direct water
Rain water collection to roof drain
Vortex filter for rainwater
Grey water re-use in toilets
Non-potable water storage tanks
Water reuse
The selection of mechanical systems was based on overall
As a regional priority for the prairies, water conservation was of para-
efficiency and comfort and includes: a ground source heat
mount concern, and the school includes a rainwater collection system to
pump for domestic water, hydronic radiant floors and active
enable the re-use of grey water. Conservation of water has been used as a
chilled beams for fresh air and cooling; energy recovery
learning opportunity in a program that also emphasizes social sustainability.
ventilators; and variable speed drive pumps. All systems
Under the guidance of a teacher, students have started a farming collective,
are fully electric, and have no associated GHG emissions.
and parents are buying shares of the kids’ produce. The practice teaches kids
Other energy savings strategies include CO2, occupancy and
about sustainability and site ecology: creating local food systems, decreas-
daylight sensors; and high-performance triple glazing with
ing food miles and fostering a consciousness about where food comes from.
fibreglass frames.
With the vibrant glow of activities spilling out through the windows on
Materials selection criteria emphasized durable, self-
many dark, Winnipeg winter nights, the Amber Trails Community School
finished, low-VOC products, with many being region-
exemplifies a new generation of educational facilities that are open and
ally sourced and/or having a high recycled content. More
accessible to all.
than 50% of wood used for fixtures and finishes was FSC certified. Following the standards set out by the funding authority, the school is designed for a 60-year service life, although structural components are predicted to last considerably longer.
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The Community Commons 'lIving room' reflects the community’s diversity [4]. Students exploring the school’s sustainable systems, with a clear view to the radiant floor heating [5]. Suppliers: Uponor in-floor radiant system, Elkay drinking fixtures, Duxton fibreglass-frame windows.
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De Waal Net Zero House Edmonton 1
TECHNICAL AWARD Jury comments: A commendable example of environmentally responsible densification, that is both gentle in its addition of a secondary suite, and transferable in its use of off-the-shelf technology and local labour. The project achieves its net zero ambitions in a holistic way, exploiting passive solar orientation and creating a highly insulated and airtight building envelope before adding photovoltaic panels for make-up energy. Water conservation and material selection strategies are also commendable.
Project Credits ARCHITECTS The design is a collaboration between De Waal Developments and Designex Consulting Owner Koen de Waal Landscape Architect De Waal Developments General Contractor De Waal Developments Photos Cooper and O'Hara Photography [photos 1 and 2], Merle Prosofsky [photo 3]
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13 This new residence replaces a 1950s bungalow which had been the childhood home of one of the owners. Structural and mechan-
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ing a new home was the only viable option. The objective was to design and build a home for a young family of four that would be
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ical problems with the existing building precluded the possibility of restoring and upgrading the home economically, so construct-
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fun, comfortable to live in, aesthetically pleasing and produce all its own energy. The owners, who were also the designers and builders, required that all energy efficiency up-grades be simple, locally available and have the ability to be installed by local tradespeople. A secondary suite was integrated into the design of the home, creating living space for renters with direct access to the university, downtown, and light rail transit. On an annual basis, the home produces enough energy to support two residences, a home office and two electric vehicles. From the outset, the home was viewed as an integrated system,
Cross section of home showing energy efficient components 1 Passive Solar Design 2 Under Slab - R20 3 Walls - R45 4 Attic - R80 5 Windows - U 0.15 6 ASHP Space Heating COP 7 Heat Recovery Ventilator 8 ASHP Water Heating COP
9 DWHR 10 LED lighting 11 Energy Efficient Appliances 12 Efficient Wood Burning Fireplace 13 Airtight Construction Techniques 14 EV Chargers in Garage 15 Renewable Energy Generation
and exploits the principles of passive solar design, increased insulation, airtight construction techniques, highly efficient mechanical systems and photovoltaics. Together, these strategies result in an Energuide rating of 100.
From the front it is not apparent that this home features a 25 kw solar array on the roof and a separate apartment on top of the attached garage (1).
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While the existing house was unsuited for the purpose, the lot on which it stood was ideal for a net-zero home. The backyard faces
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south with few obstructions to solar exposure. The width of the lot
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on the east-west axis is sufficiently wide to allow most living spaces to face south and thereby enjoy abundant natural light and passive
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heating. It also enabled the installation of a fully integrated 25kW solar array. Existing trees were kept on the property where possible and formed the basis for the creation of a garden featuring a variety of
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native species. A foundation sump pump is equipped with a valve to
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permit irrigation of the yard using recycled rainwater. All plumbing fixtures are low flow. The residual heat in wastewater is collected
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through a single stack drain that is connected to a drain water heat
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recovery system. Optimization and integration of energy conservation strategies began with a computer model into which wall assembly details,
Main floor
window sizes, orientations and specifications were inputted. Systems
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and strategies used included: air source heat pumps for space heating and domestic hot water; high-efficiency heat recovery for venti-
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lation air and wastewater; appliances and lighting chosen for energy
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efficiency; airtight construction and a 25kW solar array. The owners have opened the house to the public annually since 2015 as part of Edmonton’s Ecosolar home tour. This tour showcases
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the city’s most energy efficient homes and was the inspiration for the owners to embark on their own green home project. They hope that
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their own success, which includes Built Green Platinum certification,
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will inspire some of the 800 visitors so far to do the same
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Project Performance Energy intensity 26 KWh/m2/year. All energy required on an annual basis is supplied by a 25KW photovoltaic array Potable water consumption from municipal sources 76.7L/occupant/day Potable water consumption savings 67% [City of Edmonton statistics]
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Second floor Floor plans 1 Deck 2 Pantry 3 Garage 4 Dining room 5 Great room
In a net zero home a south facing wall ideally features a solar array for energy generation, and lots of glazing protected by appropriately sized overhangs [2]. Living spaces are situated on the south of the home and a centrally located fireplace is capable of providing heat throughout the entire home [3]. Supplier: Duxton Windows and Doors.
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Den Wood burning fireplace Foyer Balcony Ensuite
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Bedroom Bathroom Loft Laundry
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Eva’s Phoenix Toronto Interior Design AWARD Jury comments: A very sophisticated project done on a very tiny budget. The strong social sustainability agenda was supported by the clever resolution of complex technical problems, most notably day-lighighting, that required negotiation with municipal building authorities. Leaving the central atrium unheated makes it feel more like a regular street, and at the same time minimizes the conditioned area of the building, and maximizes energy savings.
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Eva’s Phoenix transforms 3,810m2 of a 1930s heritage-designated municipal waterworks into a 50-bed transitional housing, education and skills training centre for 16- to 24-year-olds actively transitioning out of homelessness. Housed in two adjoining warehouses that were stitched together by this project, Eva’s contains offices, counselling areas, classrooms, a teaching kitchen, a workshop, a clothing bank, and a full service commercial print shop in the basement. Organized around an expansive, sky-lit ‘main street’ are 10 ‘townhouses’ with shared, ground-level living rooms and kitchens linked to private bedrooms on the level above. On the topmost level is support, meeting and counselling space. Carefully calibrated circulation controls access between resident, staff-only, public, and drop-in program areas. Site selection, building placement and orientation were not part of the equation on this adaptive re-use project, and for the client, the cost of pursuing a LEED designation did not make sense. Organizing the program around an atrium ‘main street’ was central to the design approach, as was revealing the character of this heritage complex.
Eva’s understated north entrance on busy Richmond Street [1]. Looking north, the cavernous interior of the west half of the existing warehouse before the renovation [2]. Eva’s light-filled main street stitches together the two halves of the former warehouse [3].
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Site plan
3 Project Credits
Code David Hine Engineering Daylight Peer Review Sun Positions/ R. Bouwmeester Landscape Architect Scott Torrance Landscape Architect, a division of FORREC Lt Heritage Consultant E.R.A. Client/Project Manager Colliers Project Leaders General Contractor Somerville Construction Management PhotoS Ben Rahn / A-Frame
Owner Eva’s Initiatives Architect & Interiors LGA Architectural Partners Structural Engineer Blackwell Structural Engineers Mechanical Engineer LAM & Associates Electrical Engineer LAM & Associates Civil Engineer Fabian Papa and Partners Acoustical Engineer Aercoustics
Money was tight — so new elements were incorporated only when the clients’ program, zoning bylaws, or the building code required them. For the clients, optimizing visibility and audibility throughout the building were important means of promoting safety while also creating an environment that would feel secure to the residents and provide adequate privacy to them. Recognizing a valuable confluence between these objectives and the day-
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lighting strategies that would bring light deep into the floor plate of a building that previously had lim-
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ited access to natural light, the design team strove
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to integrate energy-saving strategies with key social sustainability goals identified by the client.
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Exposing the base building’s 745m2 of clerestory and heavy timber roof deck lent a distinctive material quality while meeting stringent renovation
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requirements arising from the building’s heritage designation. The building has no exterior windows on two sides, and the building code required all bedrooms to have exterior windows.
Building cross section 1 Atrium 2 Living Room & Kitchens 3 Bedrooms
The design team worked with the building depart-
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Offices Open Meeting Print Shop & Training
ment to devise creative alternatives, such as opening up approximately 30 per cent of the roof with new sky-lights.
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Final daylight analysis [4]. Main street and community space Main Street: the moveable planters can be used to subdivide the space for different activities [5]. House stairs ascending from common areas to open second floor corridors and private bedrooms [6].
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Detailed daylight modelling ensured that, excluding the basement level print shop, virtually all of the occupied floor area is within 7 metres of a window or directly sky-lit area with effective ‘borrowed’ light. [Most of the windows in this building were required by the building code to be fire rated and non-operable.] While most offices within Eva’s do not have an operable window, they have large windows facing onto the sky-lit central atrium. Eva’s is the redevelopment catalyst for an entire block that will ultimately encompass a food hall, a YMCA, a new condo tower, and enhancements to an existing park. Even more importantly, this building contains a neighbourhood within its walls: creating safe, uplifting, and boldly non-institutional space for Eva’s residents. Careful layering between residents’ private bedrooms, the semi-private common areas within each ‘townhouse’, and the atrium ‘main street’ that the more private areas overlook, enables residents to acclimatize at their own pace to socializing with others.
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Green Building Stamp of Approval Amber Trails Community School wins a 2017 Green Building Award with high performance fiberglass windows & doors.
Modern, elegant style and exceptional value.
Metalux Cruze offers a perfect balance of form and function making it an ideal choice for commercial office spaces, schools, hospitals, and retail merchandising areas.
Shown here: Prairie Architects Inc. | Bockstael Construction FiberWall™ Series 458 with Tripane Glazing & 250 Panning
45 Higgins Ave. Winnipeg, MB 204.339.6456 duxtonwindows.com
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River City Phases 1 & 2 Toronto Residential [Large] Award Jury comments: A brownfield project that stands out for its emphasis on a mix of unit types, the quality of its public realm, and its success in promoting shared car and transit use. The provision of individually metered power, heat and water fosters a culture of conservation among residents. The balanced design response to the mandated LEED gold requirement has resulted in a project whose performance is exemplary for its size.
River City is a four-phase residential development located on one of Toronto’s largest downtown, brownfield sites, and is the first private sector building development in the West Don Lands. Under the development management of Waterfront Toronto, the site master plan was conceptualized in 2005 as a LEED Gold community and a demonstrable example of sustainable development on a neighbourhood scale. Once completed in 2020, River City will contain 1,074 residential units and over 1 million square feet of LEED Gold certified development. The focus on sustainability extends from initial site selection to the individual amenities. The site is accessible by transit and bicycle, and its position ties Corktown [one of Toronto’s oldest neighbourhoods] to the Distillery District, in turn completing the connection of the multiple neighbourhoods in the downtown core. It successfully engages the city, linking a public realm of pedestrian-friendly streets and exceptional parks with an architecture inspired by flow, move-ment and continuity. The goal was the creation of a self-sustaining community that embraced the unique features that River City had to offer. Thus, while the ease of access to public transit would help incentivize alternate forms of travel on their own, all new residents of River City receive a free one-year membership in a low-emitting car sharing program available on-site, reducing demand for individual cars, and associated greenhouse gas emissions. The River City development is located on one of downtown Toronto’s largest brownfield sites [1]. Interiors are characterized by a clean and contemporary aesthetic [2]. Phase 1 and 2 includes 600 apartment units [3].
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Project Credits Owner Urban Capital Architect ZAS Architects Joint Venture Architects Saucier + Perrotte architectes Structural Engineer MMM/WSP Mechanical/Electrical Engineer Smith & Andersen Commissioning Agent Adjeleian Rubeli Ltd. Civil Engineer RV Andersen Landscape Architect Planning Partnership General Contractor Blues Cape Photos Jose Uribe/Pureblink Project Performance Energy intensity 208 kWh/m2/year Energy intensity reduction relative to reference building under MNECB 1997 48% Potable water consumption from municipal sources 27,390 L/occupant/year Reduction in potable water consumption relative to reference building 46% Regional materials content [as defined by LEED] by value 24% Reclaimed and recycled materials by value 6% Construction waste diverted from landfill 81%
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This was particularly important at River City where,
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because it sits within the flood plain of the Don river, no underground structures were permitted. The design team negotiated a reduction in the parking requirement of 50%, and provided this in an above-grade structure located between the Phase 1 and Phase 2 buildings. The streets that border River City are in fact pedestrian priority laneways called woonerfs, modelled after European urban centres designed to encourage community interaction. River City Phase 1 & 2 contains 600 individual condominium units, and all of them assist in conserving water through the use of low-flow plumbing fixtures. On their own, the low-flow plumbing fixtures are projected to save over 17 million litres of water annually. Furthermore, residents are billed individually for their own cold and hot water usage, encouraging them to monitor and reduce their own consumption. Within the building, a rainwater harvesting system further reduc-es the site’s demand upon the city’s water supply. River City’s initial conception as a building focused on energy performance led to high performing architectural, mechanical and electrical design elements. The building features efficient heating and cooling equipment, with energy recovery ventilators that recover the subsequent heat exhaust and use it to warm incoming, cooler air. Residents at River City are not only billed for their direct electricity consumption, but also for the energy required to heat and cool their individual unit. River City’s goal to become a self-sustaining community would be fruitless if residents’ attitudes and behaviours did not change in tandem with the built form itself. Thus, every new occupant of River City is given an informational packet explaining the green advantages, features and expectations of the building, along with instructions on how to maintain the energy conservation features within each suite. Proximity to downtown makes River City attractive to those seeking a transit-oriented lifestyle [4]. Europeanstyle, pedestrian-oriented streets are a feature of the development [5]. Interior of a model suite [6]. Supplier: Zinco green roof [sedum carpet and perennial garden].
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Commercial/Industrial AWARD
Queen Richmond Centre West Toronto [large]
Jury comments: An impressive and innovative example of heritage preservation, adaptive reuse and densification. The lobby is stunning, animating the street and offering the opportunity for a variety of community activities. The project hits all the sustainability buttons, both in terms of exemplary building performance and its contribution to the social, cultural and economic life of the neighbourhood. 1
2 This innovative urban intensification project is located at the confluence of the Entertainment District and the Queen Street West neighbourhoods in downtown Toronto. The site contained two underutilized century-old brick-and-beam structures, originally built by the industrious baker and businessman George Weston, and which served as a biscuit factory until the 1970s.
Project Performance Energy intensity 198 kWh/m2/year Energy intensity reduction relative to reference building under ASHRAE 90.1 2007 28% Potable water consumption from municipal sources 3,678 L/occupant/year Reduction in potable water consumption relative to reference building 42% Regional materials content [as defined by LEED] by value 33% Reclaimed and recycled materials by value 31% Construction waste diverted from landfill 83% Project Credits Owner Allied Properties REIT Architect Sweeny &Co Architects Inc. Structural engineer Stephenson Engineering Mechanical Engineer TMP Electrical engineer Mulvey & Banani LEED Consultant Ecovert Civil Engineer MGM Consulting Inc. Landscape Architect NAK Design General Contractor Eastern Construction Steel Fabricator Walters Inc. Cast Steel Node Design Cast Connex Photos Younes Bounhar
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Soho Street
Where conventional intensification strategies would have called for both original buildings to be compromised or even torn down completely, the design team came up with a novel third option: to conserve the entire site – both the buildings
Queen Street West
and the empty spaces between – by building above the existing structures. The construction of the new 17-storey office building was made possible by innovative ‘delta frames’ - an elegant architectural and structural solution that came about through a
Peter Street
collaborative design process. These structures allowed for the space between the existing buildings to remain open as an urban atrium that enhances the appeal of the complex. This multipurpose space is used as a lobby, a through-block connection, and a venue for community and industry events, exhibitions, art installations, or just a place to linger and enjoy. Above, the new development is designed and built as a healthy,
Richmond Street West
comfortable, sustainable, flexible, and ultimately more desirable building. Its future-proof and flexible design means that today it is a high-performance office – tomorrow, the base building could be repurposed to serve new uses yet to be imagined.
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Typical office at south facade
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The design gives rise to new opportunities for a better and more productive use of urban land with existing buildings. Where rainwater would previously go straight to storm drains, the entire site now collects rainwater into cisterns, which then is used to supply water for toilets and urinals in the office tower. The new 11-storey addition above the historic buildings incorporates the latest state-of-the-art technology to provide better health and comfort for its occupants. This includes exterior sun-shades to reduce solar heat gain at the perimeter, daylight harvesting with computer-controlled motorized interior light shelves, a modular and reconfigurable raised floor system with under-floor HVAC and infloor modular plug-and-play voice/data/power cabling, and glarefree indirect ambient lighting with perimeter daylight sensors. Design decisions that benefit human health and wellness have many other positive collateral effects. Installed in both retrofitted and new office space, the underfloor air distribution [UFAD] supplies fresh, unpressurized air close to each workstation through occupant-controlled diffusers; has a natural floor-to-ceiling flow pattern [due to natural stratification of heated air] that reduces the presence of airborne contaminants in the occupied zone; provides occupants maximum flexibility paired with reduced life cycle/churn costs; basically, delivering exceptional air quality exactly where and when it’s needed while requiring significantly less cooling throughout the year through minimized fan energy, fewer moving parts, and more efficient centralized equipment. Floor-to-ceiling low-e glass with operable windows provides occupants with expansive views and immediate access to fresh air. In summary, this 17-storey complex establishes a new dialogue between a historic industrial warehouse and a new high-performance workplace a century later, both an expression of the best workplaces of their time. Historic photo of George Weston's biscuit factory [1]. The new office tower rises above the renovated heritage structure supported on innovative ‘delta frames' [2]. Light, bright and flexible, the new offices are designed to the highest environmental standards [3]. The lobby serves many functions and acts as a focal point for the surrounding community [4].
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Gare Fluviale Lévis, QC
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Institutional [small] Award The large areas of glazing take advantage of the spectacular views, while the High-performance curtain wall system and roof overhangs control heat gain and loss.
Jury comments An inviting, bright and attractive building that combines economy and elegance with conscientious use of local materials and a sensitivity to its rich natural and historic context. The use of local wood elevates the architectural tone, giving a warm atmosphere to a highly functional building type. The project also leveraged improvements to the surrounding public realm, making it open and accessible to the public.
The new 1,372 m2 Lévis ferry terminal, located on the south shore of the St. Lawrence River across from Quebec City, is a key component in the rehabilitation and revitalization of the city’s former industrial quayside. The development also includes a large urban park, that gives the public direct access to the shoreline. The new building draws heavily on its spectacular historic setting, establishing a strong relationship with the surrounding landscape through form, materials and transparency. As such, the terminal creates an elegant and memorable gateway to the city of Lévis, as well as functioning as a critical transportation link for the more than two million commuters and other travellers who use the ferry system each year. The terminal is accessible from local bus, bicycle and pedestrian routes.
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View of the terminal from the St. Lawrence River.
First floor
Second floor
The Gare Fluviale incorporates numerous sustainable design strategies including: a high-performance building envelope; high-efficiency mechanical systems with ventilation heat recovery; an exposed wood structure sourced from Forest Stewardship Council [FSC] certified forests in the boreal regions of northern Quebec; low albedo roof finishes; high percentages of regional and recycled materials and water conservation measures for plumbing and landscape irrigation. To make the most of the unique setting, the terminal has large areas of glazing on all sides. The rectangular building is oriented north-south, with its long west elevation facing the river. The large windows, with their spectacular views of Quebec City and the St. Lawrence, are protected by roof overhangs and solar shading devices. As a result, the daylight levels are high throughout the building, minimizing the requirement for artificial lighting. The interior has a calming quality, despite its intense patterns of daily use. The exposed wood elements add warmth to the interior, while generous staircases, both inside and outside, encourage waiting passengers to explore the multiple prospects and perspectives on offer.
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4 The building is elegant and economical in its use of materials, combining steel, glass and wood elements.
Exterior stairs offer waiting passengers the chance to enjoy the many prospects on offer from different parts of the building.
Project Credits Owner Société des traversiers du Québec Architect Gagnon Letellier Cyr Ricard Mathieu & Associés Architectes Project Manager The Société Québécoise des infrastructures Mechanical Engineer Tetratech Electrical Engineer Tetratech Civil Engineer Stantec Landscape Architect Planier General Contractor Constructions Béland & Lapointe Photos Stéphane Groleau
5 View of terminal from above. Note high albedo roof, uncluttered by mechanical units.
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West elevation
East elevation
6 The interior spaces are large and flexible, and the structural system designed for disassembly at end of life.
In addition to the daylight and solar control strategies noted above, the building features a high-performance curtain wall and enhanced levels of roof insulation. A variety of decentralized and concealed active systems, both simple and technological [ceiling fans and a variable volume refrigerant system], provide both comfort and energy savings. The modulation of air conditioning and heating schedules in relation to building use, optimized the control of ventilation requirements and, in conjunction with exhaust air heat recovery, greatly reduce overall energy consumption. The zoning of mechanical and electrical systems eliminated the need for rooftop units, lessened the visual impact of conduits and pipes and
Cross section Project Performance Energy intensity reduction relative to reference building under MNECB 1997 33% Potable water consumption from municipal sources 2,832 L/occupant/year Potable water consumption reduction relative to reference building 39% Regional materials (as defined by LEED) by value 67% Reclaimed and recycled materials by value 22% Construction materials diverted from landfill 99%
improved system efficiency. In addition to addressing concerns for indoor air quality, the choice of materials emphasizes durability, while the assembly of building systems prioritizes adaptability and demountability at end of life. The simplicity and elegance of this project provides passengers with a modern, high quality environment that enhances the experience of this historic river crossing.
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The exposed wood roof uses FSC-certified material from northern Quebec [7]. The large expanses of glazing and exposed wood surfaces create a bright yet calm interior environment [8]. Suppliers: Altex roller shades, Cooper-Eaton lighting and lighting controls.
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Sir John A. Macdonald Building Ottawa Existing Building Upgrade Award Jury comments Perhaps the most impressive aspect of this project is how the envelope and building systems upgrades have been so discreetly integrated into the heritage structure. Architecturally, the atrium ties together the old structure with the new addition, while incorporating daylighting and ventilation strategies. A very sensitive, subtle and sustainable retrofit.
1 Wellington Street elevation [1 and 2].
This former Bank of Montreal [a 1932 RAIC gold medal winning and federally classified heritage building] has been rehabilitated and expanded to accommodate a state of the art conference facility for the House of Commons. It serves as a venue for official government celebrations, state dinners, meetings, as well as educational and ceremonial functions. The design approach restored the somewhat dilapidated former bank to its original glory and filled in the adjacent empty lot with a contemporary insertion that contains additional required meeting, service and security programme components. The technical demands of the new use, including security, IT and AV upgrades as well as completely new mechanical and electrical systems had to be balanced with preservation and restoration of the
2 Site Plan: Parliament Hill and the Ottawa River to the north, and the building indicated in orange.
heritage fabric.
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Project Credits Owner Public Works and Government Services Canada Architect NORR Architects & Engineers in association with MTBA Associates Inc. Structural Engineer John G Cooke Engineers Mechanical Engineer NORR Limited Electrical Engineer NORR Limited Commissioning Agent WSP Group Civil Engineer Trow Engineering Landscape Architect Planier General Contractor/Construction manager EllisDon Photos Doublespace Photography Suppliers: Sloan plumbing fixtures, Altex roller shades, Masonite Architectural [Baillargeon Doors]
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Restored banking hall.
The decision to reuse the empty building as a new facility was in keeping with the Government of Canada’s strategy to repurpose existing building stock rather than discarding and building new. The challenge was to
4 Atrium looking east toward the Bank with recycled exterior stone below window sill level.
rehabilitate the building in a manner that would ensure another 80 years in its new function while at the same time respecting its importance as an icon of Canadian Architecture. While the existing material pallet of the heritage bank had stood up well over the intervening years and became a basis for the future expansion, the mechanical system was not adequate to contemporary standards and significant improvements were pursued including connecting to the Cliff Street district energy plant and using the natural stratification of the tall public spaces for efficiency and comfort. Heating and cooling needs are moderated by the thermal mass of the existing building and the new stone addition. These energy needs are further reduced by the installation of a new mechanical system featuring radiant cooling, coupled with displacement ventilation for the heritage bank. Given the 10-fold increase in the potential visitor population of the
Project Performance Energy intensity 214kWh/m2/year Energy intensity reduction relative to reference building under MNECB Version 1 21% Potable water consumption from municipal sources n/a Reduction in potable water consumption 38% Regional materials (as defined by LEED) by value >20% Reclaimed and recycled materials content by value >20% Construction materials diverted from landfill >70% 5
bank hall a significant increase in fresh air and cooling was anticipated and it was a challenge to achieve without negatively impacting the heritage context. The radiant cooling strategy offsets the impact potential of television lighting and assembly occupancy. The existing window radiator enclosures are reused as air supply locations and supplemented by diffusers concealed in benches located around the perimeter. These benches also conceal the valve controls for the new hydronic tubes incorporated in the floor assembly.
The glass roof.
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Winter HVAC operation in Main Ceremonial Hall The natural stratification of the tall space is used to advantage
refurbished and reused including heritage light fixtures, limestone clad-
with the old supply air grilles at the top of the space transformed
ding from the demolished annex reused as cladding on newly exposed
into return air collectors. In addition to restoring and rehabilitating
portions of the existing building, as well as the marble teller’s counter
the existing building, all new materials were selected to match the
reused as benches and counter tops throughout the complex. Originally
same noble qualities and high durability standards of the existing
mandated to pursue a target of three green globes the project received
building including bronze, Canadian marble, local limestone, granite,
the top rating of five Globes in the Green Globes rating system.
low-iron glass and walnut. Where materials were removed they were Restored stair with new handrail.
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Crush Space view of the Confederation Building.
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Lockeport Beach House Lockeport Beach, NS
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South elevation - the building is deliberately set back from the beach.
Within a protected cove along the south shore of Nova Scotia, at the end of a stretch of sand, a river empties out into the sea. Time and tides have created a one-kilometre forested sandbar on which this beach house lightly sits. Despite the dramatic location, the clients resisted the obvious urge to place the house next to the beach, being drawn instead to the internal, cozy character of the site. The house is elevated on helical piles, minimizing excavation, tree clearing and sandbank erosion. The sand dunes between the forest and the beach are nesting grounds for endangered piping plovers, so retention of trees and the protection of habitat were important design considerations.
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Residential [Small] Award Jury comments This house has a light environmental footprint that derives from the philosophical approach taken by both client and architect. It combines responsible siting and construction strategies with low energy consumption and net zero water use. A simple and elegant building that speaks to a different way of living in harmony with the environment.
Project Credits Architect Nova Tayona Mechanical Engineer Greg Ewert structural Engineer Andrea Doncaster General Contractor Deborah Spartinelli, Trunnells and Tenons Construction Photos Janet Kimber
The wide roof overhang provides solar shading [2].
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Looking south to the line of trees that screens the house from the shore [3]. Supplier: Uponor in-floor radiant system.
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View of kitchen [4].
View from entry hall [5].
Above the piles, the lightweight wood-frame structure houses a straight-forward, one-level plan. Private areas have low-ceilings and an intimate closeness with the trees and north-west light. The main living area has a wide view to the south, over a clearing of beach grass and the tree-line separating the house from the shore. Skinned in semi-transparent black-stained eastern-white cedar, the house recedes against the forest backdrop. The design, oriented 20° west of south, takes advantage of passive solar orientation. The three-metre deep cantilevered roof provides shade in the summer, and allows the low winter sun to warm the concrete floors in the cold season. Other complementary strategies include a continuously insulated building envelope, with high performance low-e double glazing and heat recovery ventilation to minimize heat losses; and Energy Star appliances and LED lighting to minimize electrical loads. The asymmetrical gabled roof also leverages coastal storms, collecting rainwater that is funnelled into three 6,700 litre cisterns. The storage tanks are the sole source of water for the house.
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1 Entry 2 Mechanical room 3 Master bedroom and ensuite 4 Kitchen 5 Living / Dining 6 Screened porch 7 Bedroom 8 WC / Laundry / Shower rooms 9 Hall 10 Cisterns
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View from entry hall to kitchen and living room [6].
The porch reinforces the visual and physical connection between house and landscape [7].
Window openings are aligned on all axes and the low-partition walls are located for optimal cross breezes throughout the building. The scale and relationship of the private and communal spaces reflect the initial impressions of the site, and the use of wood as a structural and finish material expresses a series of shifting exterior and interior experiences as one moves through the house. The high ceiling in the main living area is clad in Douglas fir plywood and, in concert with birch ply, locally-made millwork provides visual warmth to contrast the concrete floors. A 14.5 metre wide and three-metre high window wall of Douglas fir brings the protective spruce tree line between the house and the beach into full display, with hints of blue water filtering through from beyond. In the entry, bedrooms, and private areas, low ceilings relate to the closeness of the forest, a buffer from north winds. Aluminumclad Douglas fir windows in these spaces frame the trees outside, creating an intimate and memorable sense of place. The character of the Lockeport Beach House reflects the duality of its site, and with a combination of sensitivity and simplicity, offers a new and more sustainable approach to living on the coast.
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In the bedrooms punched windows frame views of the trees beyond [8].
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Project Performance Regional materials [as defined by LEED] by value 70% Water consumption from municipal sources 0%
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AWARDS
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Marine Gateway Development Vancouver
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Mixed use AWARD Jury comments A project that has the density and diversity of use to create a complete community, with unparalleled access to both light rail and bus transportation. The comprehensive approach to sustainability is exemplary, from a highly attractive and animated public realm with a variety of commercial uses, to energy conservation and environmental control measures such as district heat and sophisticated solar shading strategies.
The Marine Gateway Development is a transit-oriented, mixed-use project located at a significant new transit node in south Vancouver. It includes two neighbourhood plazas, 15-storey office, three-storey retail podium, an 11-screen cinema, and two residential towers at 25- and 35-storeys. Integral to the design is the accommodation of transit-related functions, including an above-grade rapid transit station and bus loop. The plazas and elevated pedestrian high street provide a unique sense of place, concentrating pedestrian activity around retail stores and providing a clear connection to Southwest Marine Drive and the residential neighbourhood to the north.
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Project Credits Owner PCL Developments Corp. Architect Perkins+Will Structural Engineer Glotman Simpson Mechanical Engineer MCW Consultants Ltd. Electrical Engineer Nemetz (S/A) & Associates Ltd. Commissioning Agent GeoPacific Consultants Ltd. geotechnical engineer GeoPacific Consultants Ltd. Civil Engineer Hub Engineering Ltd. Landscape Architect PWL Partnership Landscape Architects General Contractor Ledcor Photos Andrew Latreille [1, 2, 3, 4, 6, 7] and Ed White [5, 8] 3
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The high street offers a variety of retail, entertainment and convenience shopping, that ensure pedestrian activity both day and night. Connecting directly to the Canada Line Station and South Vancouver Bus Loop, the high street conveniently serves not only neighbourhood residents and workers, but connects people throughout Metro Vancouver. In addition to its strategic location and mixed use program, Marine Gateway includes a comprehensive sustainable design strategy that features district energy geoexchange heating and cooling system with an ambient heat recovery energy loop, thermal mass and sun shading devices. Developer-driven projects do not generally place a high priority on life cycle considerations but in this case the clients exhibited a strong sense of responsibility and foresight in balancing capital cost concerns with the long-term investment in the project. Flexibility was key in developing the retail spaces. A planning grid used to partition the retail units was intended to be flexible and adaptable over time as retail tenancies evolve. Even during the design and construction period, this has proven a robust approach. High floor-to-floor dimensions as well as convenient [and sometimes redundant] access to back-of-house areas allow for long-term flexibility and change management. Design and construction of the 11-screen cinema was deliberately left as flexible as possible, inserting all tenant improvements into a robust shell, should the use change over time. Office ceiling heights are higher than standard and floor plates larger than typical downtown buildings, allowing for more effective daylighting and the accommodation of a wide variety of tenants over time.
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Project Performance Energy intensity 132.5kWh/m2/year Energy intensity reduction relative to reference building under ASHRAE 90.1 2004 55% Potable water consumption from municipal sources 55L/m2 /year Potable water consumption reduction relative to reference building 37% Regional materials (as defined by LEED) by value 30% Reclaimed and recycled materials by value 30% Construction materials diverted from landfill 89%
Energy Diagram 5 The Marine Gateway Development is a high density mixed-use project located at the intersection of Cambie Street and Marine Drive, a bus and light rail transit hub in south Vancouver [1]. A mix of retail, service commercial and entertainment uses are brought together in the ‘Main Street’ - notable for its careful attention to scale and materials [2 and 3]. The development pays careful attention to orientation, ensuring maximum daylight to public spaces [4]. The careful choice of uses ensures pedestrian activity at all hours [5]. Towering over the single family residential and light industrial areas to the north and south, Marine Gateway will ultimately be the focal point of a new mid-rise mixed use neighbourhood overlooking the Fraser River [6]. Suppliers: Greenscreen exterior vegetated screen, Sloan plumbing sensors.
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Pedestrian Traffic and Transit Use Life Cycle Assessments were utilized for certain building system decisions including the base energy system [although a waste heat
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recovery system would have been chosen had municipal policy been in place]. A central plant leverages the mix of uses and distributes to terminal boxes that are appropriate to the particular use. Office and retail uses, which see significant churn and change over time, use fan coils for ease of alteration and simultaneous heating and cooling. Residential spaces use hydronic radiators that have almost no moving parts and are relatively maintenance free. Because of the proposed density, this project faced community opposition in the early stages. However the design team demonstrated that this type of nodal densification supports Vancouver’s growth in a responsible manner that dramatically reduces per capita GHG emissions. The scale of Marine Gateway was born out of necessity— the critical mass needed to build a vibrant community could only be achieved by attracting people to live, work, and socialize in this place. Jobs, economic development, safety and security, and community are just a few of the contributions Marine Gateway makes to the surrounding neighbourhood. sabMag - SUMMER 2017
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interview
Alex Speigel
Alex Speigel, partner at Windmill Developments, believes that the greenest buildings are actually conversions. With Arch Lofts [www.archlofts.com], they’re transforming a century-old church into condos in a downtown area of Toronto known as the Junction Triangle.
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1. Windmill Developments is known for its sustainably designed projects, but with the Zibi project in Ottawa/Gatineau, and now this one, is it devoting more of its work to site and building rehabilitation? We are committed to development within urban boundaries that stays well connected to transit, so many of these sites involve working with existing buildings. In some ways, the greenest building is one which already exists - since the new project will retain the embodied energy that is part of the existing structure, not sending the building to landfill. As a result, adaptive re-use projects like Arch Lofts supports Windmill’s mandate and commitment to build sustainably with the added bonus of bringing renewed relevance to older buildings.
3. How do you generally approach the upgrade of a 100-year old building to modern building standards or beyond, such as R2000 or LEED? We are targeting the Toronto Green Standards, Tier 2 level as well as the HPNC [High Performance for New Construction] standard. We are upgrading the insulation levels of the envelope with new spray insulation - but one has to be careful not to over insulate since it may cause damage to masonry. The original envelope provides great thermal mass to regulate swings in exterior temperature and the new insulation provides additional insulation as well as moisture protection to prevent higher levels of humidity from penetrating the old walls. Individual suites have energy recovery ventilators [ERVs] which provide superior levels of fresh air to the units. The geo-thermal field below ground provides a low-carbon solution for heating a cooling by using the Earth’s energy for heating in winter and cooling in summer.
2. What is the scope of the Arch Lofts? Arch Lofts consists of two interlinked buildings. The original Church building is a 100 year-old heritage structure designed by renowned Toronto architect George Miller, who also designed Massey Hall and Havergal College. The Church will hold 26 residential suites, effectively "building a building inside a building.” Insulation is being carefully added to the inside face of the massive brick walls and new energy-efficient windows are being inserted into the original masonry openings. We are also erecting a new building on the former parking lot with 13 units, called the Vestry - which will also include the new underground parking and the geo-exchange field below grade.
4. What do you do with materials salvaged from the old building and how do you minimize waste? Materials were re-used as much as possible and the balance recycled. The pews were given to a wood worker to produce a wide variety of furniture with the wood. We even found a new home for the organ, which was originally made by Cassavantes Freres from Quebec. It was carefully dismantled and re-installed in a church in Markham.
The Arch Lofts in the Junction Triangle area of Toronto combines a former church with a new 13-unit building built on the former parking lot [1]. The new "Vestry" building containing 13 units has underground parking and a geo-exchange field [2].
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5. What philosophy are you trying to project in taking on rehab projects like this which can be complicated by higher costs and the prevailing density of an establish urban area? There are definitely higher costs associated with projects like this and higher risks due to the many unknown factors. However there is worth within these beautiful, old structures that provide the value proposition: better neighbourhood acceptance during the approval process, grandfathering of the height and density inherent in the existing building and strong demand from purchasers that value the unique one-of-a-kind suites that are created. It’s a balance – and ultimately the market has responded very positively to the integrity we’ve built into every project.
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Authored by: John Straube, Ph.D., P. Eng., RDH Building Science Corporation
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