Environmental Building Systems - Sustainable House Design

Page 1

LEGEND

N

w

STORMWATER DRAIN (UNDERGROUND)

Winter prevailing wind - NW (Source : Windfinder.com)

Existing mature trees provide natural shading during the hot summer period.

N

EW I V

1:00 PM

SUN PATH- WINTER SOLSTICE

CLIMATE

144.26 m2 (roof) x 650mm (rainfall) = 93770L (potential) 10% absorption/ evaporation etc. = 84,393L of water can be collected

AVERAGE AIR TEMPERATURE 0 Winter - June : 12 C Summer - December : 220 C

As this is a new build, the client is asking for a sustainble home. The client is willing to put the initial capital for future proof sustainable technology that will achieve a balance of sustainable yet affordable, low maintenance house. The client has also requested for an outdoor area for BBQ and have open plan approach to the kitchen, dining, living and outdoor

EXISTING mature deciduous trees

6:07 PM

2 x 3000L Polyethylene water tank

W

space.

Summer prevailing wind - SSW (Source : Windfinder.com)

The client would like to use the Victoria/rebates for the new house : 1) Federal water rebate rainwater tank 2) Federal grey water system rebate 3) Federal renewable electricity RECs , PV system < 100kW 4) Federal solar hot water system 5) Solar credits program

r ate W

Roof pitch 1:1.29 (37.7o)

SUN PATH- SUMMER SOLSTICE Existing mature trees provide natural shading for west facing wall againts hot afternoon sun.

21 Dec. SUNSET

8:42 AM

ny ho p e l Te

20m2

Solatube skylight

Photovoltaic Evacuated solar panels solar tubes collector

E

Added : Scrubs < 2m, below window line

Gross roof area 144.26 m2

8:38 pm

21 Dec. SUNRISE

Added : Scrubs < 2m, below window line

Stormw ater dra in

5:54am

G

G

Ele ctr icit y

G

S

SITE ACCESS ACCESS Main vehicle access at south west and north east corner of the property. Private pedestrian access at the south east corner. Southwest access as primary vehicle access

21 June SUNRISE

21 June SUNSET

LAWN - hardy draught tolerant grass

CLIENT PROFILE Family of 4; Father, mother and 2 children. Children are in school one at university and the other in primary school (20 &15 yrs. old).

Added : Scrubs < 1m, Deciduous trees < 3m

t rne nte I +

with paved driveway to the west side of the house (possible carport or garage build). Recommended paving Permeable paving interlaced with hardy grass

RIZAL AMBOTANG, 641233 EBS20036, TUTORIAL THURS. 1:15P

Sew era ge

1

SITE PLAN 1 : 200

Rectangular House SITE PLAN & ANALYSIS

Project number Date Drawn by

0001

A101

13/03/2014 Rizal Ambotang Scale

1 : 200

1 : 200

21/03/2014 11:49:16 PM

PRECIPITATION Average rainfall : 650mm(total)

Existing mature trees provide natural shading during summer and let through sun light in winter


1

N

Plan view

PASSIVE HOUSE STRATEGY

North overhang : 500mm

LEGEND

Summer sun

1 : 100 2

North overhang : 500mm

Absorber

A102

D8

W1

VERANDAH

Thermal mass

Aperture

D7

Heavy drapes

Window label

Concrete slab ceramic tiles

Door label

Concrete slab carpeted

Breeze

Wx

Distribution

Winter sun Control

Dx

CLIMATE RESPONSE Siting - north facing orientation

WINDOWS & DOORS SCHEDULE

CONTROL

BEDROOM 1

500mm overhang and 2400mm width permanent pergola for summer shading. Deciduous creepers for natural shading in summer and sun expousure in winter.

W7

D1

LIVING + DINING

Height

Width

W1

North

1.0m

2.1m

D7

North

2.1m

2.7m

W6

East

0.6m

2.4m

W7

East

0.6m

2.4m

W2

South

0.6m

1.2m

Sliding

ABSORBER/THERMAL MASS

W4

South

0.6m

0.9m

Sliding

Concrete slab on grade floor for thermal mass and good heat absorber and slow night release in cold winter weather. Concrete is a good thermal mass material for stable internal temperature with large Melbourne temperature variation.

W3

South

0.6m

0.6m

Sliding

W5

South

0.6m

1.2m

Sliding

APERTURE

D2

BEDROOM 2

East & West overhang 400mm

Solatube© skylight

BEDROOM 3 LAUNDRY

KITCHEN

BATHROOM

W6

WC PANTRY

Roofline W2

W3

D3

D4

W4

W5

D5

D6 South overhang : 400mm

2

Cross ventilation - section & plan view 1 : 200

Pergola with fixed pitch louvre 2400mm, with deciduous creepers

Large opening - bifold door. Winter sun heating thermal mass. Large opening for cross ventilation for summer.

DISTRIBUTION Good cross ventilation heat dispersal during summer.

& Shading 3 Solar Winter sun 1:00 PM 8:42 AM W

6:07 PM

N

Top Wall

Summer Sun

2580

RIZAL AMBOTANG, 641233 EBS20036, TUTORIAL THURS. 1:15P

21 Dec.

E N

Cross ventilation paths created by opening doors and windows

Fix light suite Fix light suite

DS0624

DS0612

DS0609

DS0606

W1

W6&7

W2 & 5

W4

W3

Dowell Thermaline Timber

D7 - BI-FOLD DOORS

DOORS

Stegbar EU 2114-SL Aluminium

2144 x 1348 mm D8 - NORTH ENTRY DOOR

D9 - PANTRY SLIDING DOOR

EXTERIOR WALL INTERIOR WALL

5:57 AM

0

Bi-fold door

2040 x 820 mm All INTERIOR DOORS

2078 x 620 mm D10 - LAUNDRY BIFOLD DOORS

CONSTRUCTION

Ground

Roof overhang with softfit & gutter- 500mm

Dowell ThermaLine™

DS1021a

2040 x 820 mm D6 - SOUTH ENTRY DOOR

1:00 PM

Fixed/Operable Sliding

Large glazed bifold doors and north facing window exposed to low winter sun for thermal mass heating.

Ventilation through ceiling/attic vent and softit vents.

FLOOR construction Concrete slab on grade with carpet and ceramic tiles on wet areas.

Brand

Dowell Thermaline sliding & fix light windows

2100 x 2700 mm

S

E

21 June

Cool breeze from prevailing wind in summer

GLAZING

Window facing

©

S 8:44 PM W

Pergola and lush deciduous creepers provide shading from high summer sun.

©

ROOF/ATTIC

Kingspan insulated roof Hebel Powerclad Modakboard on timber Autoclaved Aerated stud frame with glasswool panel © on LVL roof truss. Attic is ventilated but Concrete (AAC) 50mm insulation . Walls with insulated with wool glass panel(veneer) wall on ceramic tiles for wet areas batt and reflective foils timber frame & utilities facing open space underneath roof and insulation construction batts.

Rectangular House

House Plan, Section & Construction details

Project number Date Drawn by

0001

A102

13/03/2014 Rizal Ambotang Scale

As indicated

27/03/2014 8:24:42 AM

ENTRY


N

LEGEND

CEILING FAN SIZING

LIGHTING Philips range of LED bulbs, LEDtube and downlight systems (CorePro, Master LEDSpotLV & Master LEDTube series bulbs/tubes) with wattage of 5.5 to 7W

Room dimension

Suggested Fan size (mm)

Room (m2)

Up to 30m2

1300mm

Living room

22.3

1067mm

Bedroom 1 Bedroom 2 Bedroom 3

10.37 8.85 10.13

Up to 12m

2

Fan type

LED downlight Exterior wall light

Metal blade (moves more air)

Interior wall light

Timber blade (quieter)

Pendant LED light

Note: all fans are integrated with LED lighting Fan with LED light 3

TV Coax socket to roof mounted digital antenna

3

2

D NTD

Area : 10.37m2

PREMISE CONNECTION DEVICE - telephony + data

Single light switch n

PSU

n-number power socket Single power socket

3 TV

Permanent power socket

From roof mounted PV array

DR

Area : 22.3m2

2

n

n-number light switch

TV Coax socket S

Smoke alarm (battery) Exhaust Fan

2

Electrical meter

2 S

2

Power socket for fridge

S

3

Area : 8.85m2 water pump - rainwater tank to pipes

Power socket for dishwasher

Mechanical ventilation (attic)

Area : 10.13m2

2

4

3

D

D

Plan View - Services 1 1:50

water pump - greywater tank to toilets

RIZAL AMBOTANG, 641233 EBS20036, TUTORIAL THURS. 1:15P

Hotwater heater system

HW

Water pump

WP

Network termination dev. Power service unit

NTD

Photovoltaic meter PV inverter

PVM

PSU

INV

External power sockets waterproof

4

4

EM WP

MSB

Mechanical ventilation (heat exchanger)

MSB

WP

Main Switchboard

Data router +ethernet hub DR

Power socket for washing machine

2

EM

PVM

n

Ethernet+ telephony dual socket (RJ45+ RJ11) INV

Electrical circuit CAT6a ethernet cabling

CONSUMER MAIN overhead power supply to meter box

Coaxial cabling for TV

Rectangular House

Services - Electrical, Lighting and communication

Project number Date Drawn by

0001

A103

13/03/2014 Rizal Ambotang Scale

1 : 50

24/03/2014 12:29:13 PM

2


N

LEGEND TAPS & MIXERS Basin mixer Toilet suite Shower head Laundry Mixer Set Kitchen mixer tap, with hand spray

Caroma Caroma Caroma Caroma Ikea

Liano Milan Caroma Flow Cirrus ALESKĂ„R

6 WELS Star 4 WELS Star 3 WELS Star 4 WELS Star 6 WELS Star

4.5 L/min flow 4.5/3L (full/half flush) 6.5L /min 7.5L/min 3.5 l/min.

From (Main) water meter

(Rainwater) Downpipes Hotwater heater system Hydronic radiant heater panel Water pump

HW H WP

Treated Water pipes Treated Water pipes (underground)

H

Stormwater pipes Gas pipes Rainwater (collected) pipes Cold water pipes TV

TANK A

Hot water from evacuated solar tubes H H

Hot water pipes Cold water to evacuated solar tube collectors - roof mounted

Overflow to Tank B

2 x 3000L Polyethylene water tank

Treated water for fridge water dispenser/icemaker

TANK B

To oven & stove

rainwater water for washing machine H

rainwater water for shower & bath

H

Overflow to stormwater drain

Mechanical ventilation & heat recovery (with attic vent) Treated water tap

WP

Hot water from evacuated solar tube collectors - roof mounted rainwater water for dishwashing machine

Mechanical ventilation & heat recovery 1) provide circulated fresh air and remove stale air 2) Recover heat for space heating

EM HW

RIZAL AMBOTANG, 641233 EBS20036, TUTORIAL THURS. 1:15P

Main gas from gas meter (Utility)

MAIN WATER STORAGE TANK Sanicube Š - 500L tank gas booster for instantaneous hot water, multitap ( hydronic & hotwater)

Source : Kingspan Century. 2014

Rectangular House - Plan view, Services

Services - Gas & water supply

Project number Date Drawn by

0001

A104

13/03/2014 Rizal Ambotang Scale

1 : 50

24/03/2014 12:29:13 PM

Plan View - Services 1 1:50


Plan View - Services 1 1:50

SL OP E

N DI

RE

CT IO N

OF

SIT

LEGEND Treated Water pipes (underground) Treated Water pipes (aboveground)

E

Stormwater pipes (underground) From (Main) water meter

To garden drip irrigation system

Sewerage From greywater tank To greywater tank Overflow to storm water drain

RAINWATER HARVESTING WITH AUTOMATIC CHANGEOVER TANK A

Overflow pipe to tank 2

Wall mounted control panel

Gutter

From downpipes

Rainwater (collected) pipes Greywater filter (Rainwater) Downpipes

Overflow to stormwater drain

Overflow to Tank B

2 x 3000L Polyethylene water tank

As water enters downpipe from gutter & fill up the downpipes. Water level will rise and flows into tank

Water pump

Pump

From downpipes

To garden irrigation system

GWF

Overflow to stormwater drain

water direction

From downpipes

Rainwater Tank

Main line

Sewer vent - roof

To pump then house (toilet, washing,

Min. water level for automatic switch to main water supply WET SYSTEM for rainwater harvesting

Treated water to fridge cold water dispenser

(Source : adapted from www.stormwater.net.au & raincycle.com.au)

TANK B

Greywater from washing machine & sink

Discharge pipes 2:100

Treated water tap

High WELS star-rating fixtures and good plumbing connections for reduced water consumption.

Blackwater from kitchen sink & dishwasher Blackwater from toilets

Overflow to stormwater drain

Water pump

Greywater from shower & bath

GWF

Greywater holding tank - underground

Overflo w to se wer

2:100

Greywater from wash basin/sink

To MAIN Stormwater drain

Discharge pipes are graded at 2:100 300mm at highest point underground

RIZAL AMBOTANG, 641233 EBS20036, TUTORIAL THURS. 1:15P

Rectangular House - Plan view, Services

Services - Sewerage , stormwater & rainwater harvesting

Project number Date Drawn by

0001

A105

13/03/2014 Rizal Ambotang Scale

1 : 50

24/03/2014 12:29:13 PM

To town(main) sewer line


zero carbon house

TOTAL HOUSEHOLD ENERGY CONSUMPTION lighting

46.72 Kwh/YR energy supply

TV , 2 x 55" LED TV electrical appliances Washing machine Iron Fridge Dishwasher Microwave Small appliances Game console Oven cooking (electric) Vacuum cleaner

energy consumption

219.10 Kwh/YR 1403.10 Kwh/YR

sun - renewable energy source

solar thermal system Photovoltaic system

space heating& hot water system

ventilation & heat recovery

stale air

fresh air exhaust air

computer & peripherals 1 x multimedia PC + 24in monitor 1 x laser colour 1 x modem(router) 2 x laptop

circulated fresh air

322.80 Kwh/YR electrical grid

net meter excess to grid

TOTAL : 1991.72 KWH/YEAR

thermal storage

HOUSEHOLD EQUIVALENT CO2 EMISSION

electrical switchboard

electrical load

1991.72 KWH/YEAR ≈ 2609.15 KG CO2 carbon offset approach Offset with onsite energy generation through solar photovoltaic system covering 100% of household consumption annually.

option 2 - buy carbon credit

18 x 175W solar panel or higher efficiency solar by JT solar No. of Solar Panels: 12 x 250W panel Average daily output: 13.50kWh Gross Area required : 20m2 house available roof area (north) : 72.13m2 AVERAGE DAILY CONSUMPTION OF : 5.46 KWH/DAY with 8.04 KWH/DAY excess to grid. ** available space for solar hot water system and future expansion for growing energy need**

www.greenfleet.com.au

household offset for 4 people

AUD 235.03/yr tax deductable donation Greenfleet will plant equivalentNUMBER OF trees to capture 16.8 tonnes CO2-emission

LIGHTING Philips Dynalite Dimension - Smart Lighting system, app (smart phone & motion sensor) control lighting system that turns-on and off based on presence, dimming options, security and automatic timer to optimize and personalize lighting usage thus minimizing energy use. Light bulbs are based on Philips range of LED bulbs, LEDtube and downlight systems (CorePro, Master LEDSpotLV & Master LEDTube series bulbs/tubes) with wattage of 5.5 to 7W with 1205 & 1533 kWh (respectively) per annum compared to 35W 7665 kWh per annum energy use for halogen bulb each.

ELECTRICAL APPLIANCES & COMPUTERS High WELS star-rating for reduced water consumption and high energy star RATING ELECTRICAL applianceS for reduceD energy consumption. Epeat rating for computer recyclibility.


SERVICES To achieve sustainable and net zero energy house, the following objectives will be the driving forces behind the choices for the systems used for services i.e. water, heating, lighting and electricity. 1) 2) 3) 4) 5)

Conserve water resources Reduce building operating energy cost Reduce household energy consumption Renewable energy sources Comfort

Water use Harvesting rainwater through 2 x 3000L rainwater tank connected through network of downpipes and connected the house water pipes for shower, washing etc. The tanks are also connected to the main water supply with automatic changeover when tank water level drops to a set low level that triggers the flow of water from main water supply. To avoid complication of compliance, drinking water is piped directly to kitchen sink with a dedicated tap for drinking water. Overflow of rainwater will be directed to the main storm water drain. Rainwater is also used for the garden’s drip irrigation system. To conserve water further, a dual flushing system recycles the grey water for use of flushing toilets. The grey water from bathroom and laundry will be piped to an underground grey water tank with a grey water filter installed. When flushing occurs, water from this tank will be pumped for use. The owner will also have an option to have a garden/herbs planter installed connected to the grey water if so desired. Careful selection of high WELS rating bathroom taps and kitchen fixtures ensures low flow water into these fixtures thus reducing the amount of water use. Additionally, selected water conscious appliances such as dishwasher and washing machine intelligently measure washing loads to optimize water use, On-site power generation Use of solar as the primary energy source supply for the house through photovoltaic system. Refer to Zero Carbon House page and material schedule for specifications. Integrated solar thermal hot water and hydronic space heating system Integrated solar thermal hydronic heating and hot water system maximizes the use of thermal solar system through the evacuated solar tubes for space heating and hot water for washing and showering. The 2 systems (heating and hot water) uses the same pipe network as well as sharing the same enlarged 500L main thermal storage tank to provide continuous hot water supply as well as heating the heating radiators installed in each rooms and main family spaces. The thermal storage is also gas boosted if temperature dips below a certain level for continuous supply of hot water and radiant heating via radiators. Refer to material schedule for system specifications. Mechanical ventilation with heat recovery With increased airtight building envelope, the air within the house is circulated and ventilated through an air-to-air heat exchanger (MVHR) that replaces the stale air with fresh air external of the house. Additionally, the heat exchanger recovers the heat from the stale air and recirculate the air back into the rooms thus reducing the cost of heating (and cooling). Energy efficient and smart lighting system Connected LED lighting allow reduced energy consumption through LED technology as well as control on net-connected bulbs which allow individual on/off, timer and dimming function on each bulb. Additionally, motion sensor and timer functions will further reduce energy consumption by only turning on lighting as and when needed.


SITE ANALYSIS & DESIGN REPORT Sitting, orientation and environmental/climatic response The property is a corner block and aligned in east-west direction with existing houses on west and north facing sides. The block is bounded by two suburban street i.e. Benjamin Street and Callery Crescent. To maximize the view towards the open space, solar insolation and away from the neighboring south wall, the house is oriented towards north. Mature deciduous trees at the northern corner and south west of the block provides natural shading for hot summer sun yet provide full access to the sun during winter when the leaves shed. Additionally, the trees provide windbreak from the northerly winter prevailing breeze. As part of landscaping plan, evergreen scrubs (< 1 m height, for microclimate), deciduous trees (< 3m height) as well as deciduous creepers (for summer shade) is recommended along the north facing pergola. Scrubs is also suggested (< 2m height) to be planted along the south and east facing walls to provide stable temperatures in summer and winter while allowing cooler breeze to pass through during summer. The living (and dining) is arranged north facing to maximize daylighting. The kitchen is east facing to receive the morning sun. Two of three bedrooms are south facing with another north facing. Shadings is required for north facing windows and openings. North facing roof has an overhang of 500 mm as eaves. A pergolas with fix angle (30o slats provides summer shading for the large opening (bi-fold door) in the living room as well as Bedroom 1 window. High operable windows are arranged for south facing bedrooms and bathroom/toilet for privacy from adjacent street and minimal glazing strategy to reduce heat loss in winter. These windows can be opened for (cross) ventilation. There’s no openings on west facing to avoid hot summer sun. Daylighting for internal passage is achieved through tubular skylights (e.g. SOLATUBE). North facing rooms and kitchen (east facing) have ample openings (windows and bi-fold door) for daylighting. The site topology is generally flat throughout and suitable for concrete slab-ongrade foundation and concrete flooring for thermal mass attribute. The building construction method is Autoclaved Aerated Concrete (AAC) veneer walls (high R-value) fixed to timber frame. Painted Modakboard© (composite board) are used for interior wall and ceiling on timber stud frame and weatherproof paint on exterior wall. Roof is constructed using prefabricated and custom design engineered lumber, LVL (laminated Veneer Lumber) trusses. Insulated roof panels from Kingspan© fixed to trusses. Roof is graded to 1: 1.29 to achieve 37.7o Melbourne’s optimum solar angle for photovoltaic array.


MATERIAL SCHEDULE Product type

Product name/brand SOLAR THERMAL - HOTWATER AND HEATING

Model

Ratings

Energy/Sustainability comments

Main hot water tank - Stratified

ROTEX

Solar collector for hydronic & hot water

Apricus

Optimal heat retention due to PU rigid foam which minimized heat loss. Peak power : 1,944 Watts / 6,632 Btuh Roof area required : 4.4 m2,

Hydronic radiators

Korado

Sanicube - 500L tank AP30 Evacuated Solar Collector Tubes Radik Klasik Radiators

JT Solar

3 Kw system 12 X 250watts panels.Gross Area required : 20m²

Average daily output: 13.50 kW/h. Solar Panel - QSE / ZC / Trina / Yingli / LG Solar Inverter - Power-One Aurora / SMA Tripower, net meter. Polycrystalline, 14.43% efficiency.

Walls - Autoclaved aerated concrete veneer (panels)

Hebel

Powerclad

R = 3.57

Internal walls/ Ceiling

Modakboard

Modakboard

Tiles – kitchen/bathroom/wc flooring

Sadlerstone

Flekk Concrete tiles

Wall framing - Prefabricated timber framing Roof frame - LVL prefabricated timber roof trusses Roof panels- Insulated roof (system) panels

Pryde

Made to order

Kingspan

Foilback (KS1000 FB)

Floor carpeting

Cavalier Bremworth

Serengeti line , 100% wool

Low VOC < 5g/L , Color – white, water based , acrylic

Radiator installed with individual thermostat to control heating – zoning.

PHOTOVOLTAIC ON-SITE POWER GENERATION Photovoltaic panels

BUILDING CONSTRUCTION No VOC, generic trades requirement (cheaper) labor cost, Hebel uses 61% less embodied energy and 55% less greenhouse gas emissions than the comparative products i.e. concrete and brick veneer. Magnesium-oxide, non-organic minerals, bonders and fibre mesh composites. 100 Recyclable, non-toxic, naturally resistant to fire, water, and impac.Carbon neutral manufacturing process Sadlerstone concrete tiles consists of recycle material cured at ambient temperature, low energy with high durability. Software designed wall framing and cut to house specifications for minimal wastage

R Value = 2.42 U Value = 0.41

Steel coated with alloy and polyester painted. Backing foil + insulation. 71% recycled material , GreenTag label : GOLD - 0.34 (where 0 is best), Greenrate : A Level 4 - Environmental Certification Scheme, sustainable natural resource, end-of-life recycling option, low VOC on latex backing (0.1 mg/m3 air)

FINISH Exterior finish

Exterior paint

Taubman

Interior finish

Interior paint

Dulux

Pure performance Pro EnviroO2

Low VOC < 1g/L , Color – dark, water based , low odour

GLAZING Window facing

Height

Width

Brand

Fixed/Operable

Frame type

1

North

1.0m

2.1m

Sliding

2

North

2.1m

2.7m

Dowell ThermaLine™

3

East

0.6m

2.4m

Fix light suite

4

East

0.6m

2.4m

Fix light suite

5

South

0.6m

1.2m

Sliding

Aluminum improved with Uvalue < 8.0 W/m2.K

6

South

0.6m

0.9m

Sliding

7

South

0.6m

0.6m

Sliding

8

South

0.6m

1.2m

Sliding

Bi-fold door

Glass type

Double glaze with low thermal emissivity (improved U-value). H-TS (High Solar Transmittance) for passive winter gain. Double glaze. Outer pane with high performance tint (e.g. Azure), low-E coating on surface 2


Innovations 1 2

Objectives Implementations/Innovation Conserve water 1) Grey water recycling system, resources 2) Rainwater harvesting Self-sustaining net-zero carbon home Reduce building 1) Passive house design operating energy a. Thermal mass floor/foundation cost b. Solar orientation for maximum northern sun exposure c. Minimal southern openings/glazing with no west facing opening. d. High R , Low U walls & glazing e. Bulk insulation 2) Airtight envelope, rigorous detailing to avoid thermal leakage. Efficient and strategic positioning of thermal barrier to maintain tight envelope. 3) Highly efficient main water storage(gas boosted) for thermal storage for hot water system and hydronic space heating system 4) ..ventilation with heat recovery for fresh air and ‌ 5) Summer cooling through use of fans with cross ventilation path. 6) Sustainable energy source generation with little or no main grid energy required Reduced energy consumption

1) 2)

Onsite energy generation from renewable solar photovoltaic system

1) 2) 3)

Use of LED bulbs for lighting with low wattage and lower energy consumption High Energy star home appliance for less energy usage Smart lighting solution with motion detection, dimming function, remote shut-off to minimize energy use.

4)


Environmental Building Systems

2014

ABPL20036

FirstRate4 House Energy Rating Assignment 1 – House Energy Rating Component Student Name: Rizal Ambotang House Name:

Student Number:

641233

Rectangular House

Initial Star Rating and points: Floors:

Change to Stars / points:

Key Change : Concrete slab on grade as floor construction with carpet covering on floor Reasons : The concrete floor becomes thermal mass for the interior house envelope. Reduce energy use in heating and cooling of the house during winter and summer. The carpet covering extended the performance of the concrete floor during winter. Improvement : Increase points score and star rating of the house. Walls: Change to Stars / points: Key Change : Changed to reverse brick veneer wall construction. Reasons : The brick wall becomes thermal mass for the interior house envelope. Reduce energy use in heating and cooling of the house during winter and summer. Improvement : Increase points score and star rating of the house. Ceilings: Change to Stars / points: Key Change : Vented ceiling. Added 2 layers of reflective foil facing the air surfaces, one installed just underneath the roof and another just above the insulation material. Reasons : Radiant heat from the sun heating during the day radiates back to the house during the evening. Reflective foil will radiates back the heat to the roof thus making the attic insulation more effective. In consequence less energy required for cooling the house. Attic venting improves the performance by removing the hot air that circulates in the attic during summer as well as removing moisture built up during winter that can deteriorates and decrease insulation performance. Improvement : Increase points score and star rating of the house. Windows (and Skylights if relevant): Change to Stars / points: Key Change

: Skylight Large bi-fold glazed door for northern opening Fixed windows for east facing wall Small south facing OPERABLE windows Reasons : Skylight – daylighting for interior passage. Large northern opening can assist heating of concrete floor (thermal mass) during winter thus improving heating performance. South facing window for cross ventilation path (for cool summer prevailing wind). Minimize south glazing to prevent heat loss during winter. Improvement : Increase points score and star rating of the house. Skylight is less than 2, no points taken. Skylight can increase total glazing surface area thus increasing heat loss in winter. Air Leakage and Design Features: Change to Stars / points: Key Change Reasons

: Sealing all gaps : Sealing all air leaks will create airtight building envelope thus maintaining the performance of insulation.

Improvement : Increase points score and star rating of the house. Final Star rating and points: 6 star rating with 79 points


FirstRate Report

 



 

HOUSE ENERGY RATING YOUR HOUSE ENERGY RATING IS: in Climate: 21

 SCORE:

Name:

Rizal Ambotang , 641233

Ref No:

House Title:

Rectangular House

Date:

Address:

Corner of Benjamin St. and Callery Cres.

6 STARS 79 POINTS

25-03-2014

Melbourne Reference:

3000

C:\USERS\...\RECTANGLE HOUSE_1STRATE_FINAL

This rating only applies to the floor plan, construction details, orientation and climate as submitted and included in the attached Rating Summary. Changes to any of these could affect the rating.

Appliance Ratings Heating:

Integrated Hydronic heating system



Cooling:

Fan



HotWater:

Integrated solar thermal hotwater system



NOTE: The appliance ratings above are based on information provided by the applicant and are included for information purposes only. They do not affect the House Energy Rating of the dwelling.

25-03-14 13:22:59 Ver:4.00 C:\USERS\RAMBOTANG\DESKTOP\PAGES\FIRST RATE FILES\RECTANGLE HOUSE_1STRATE_FINAL.1RT


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