cmhc report technical research committee chba march 3, 2010

CMHC Report

Technical Research CommitteeCHBAMarch 3, 2010

EQuilibrium Housing Status

7 projects completedRiverdale NetZeroAvalon Discovery 3CHESSNow HouseInspiration – the Minto ecohomeAbondanceEcoTerra

EQuilibrium Update

CANADA MORTGAGE AND HOUSING CORPORATION

EQuilibrium Housing Status

4 Project Under ConstructionEcho Haven, CalgaryGreen Dream Home, KamloopsUrban Ecology, WinnipegAlstonvale, Hudson

EQuilibrium Update


EQuilibrium Update


EQuilibrium™ Communities

– Selection Process Complete– Contribution Agreements

Being Finalized– Announcements Once

Agreements Signed


EQuilibrium Housing InSights

• Five Completed– Riverdale NetZero Deep

Wall System

– Now House Exterior Envelope Retrofit

– Riverdale NetZero Active Solar Thermal System

– Riverdale NetZero Passive Solar Design

– Avalon Discovery 3 Passive Solar Design


EQuilibrium Industry Forums

First Forum – Edmonton, Alberta, November 2-4, 2009

Riverdale NetZero, Avalon Discovery 3 and CHESS teams shared their project experiences designing, building and selling their projects with over 150 industry and stakeholders. Great feedback

Next Event being Planned for Montreal, Fall 2010


CMHC Research Projects - Ongoing

Basement Wall Insulation Retrofit Monitoring

• Comparing the performance of typical basement assemblies to alternatives

• Testing in two sets of five houses in Saskatchewan

• Basic test set up: In an existing house (not new), build interior framing/insulation and finishing system on a south or west basement wall




Conventional Wall:

• 2X4 stud wall with R-12 fibreglass batts

• 6 mil poly

• Half inch drywall

• Vapour barrier paint (to compare to other wall that also has vapour barrier paint)




Alternative Walls:

• Traditional wall with no polyethylene

• R-12 open cell foam, with polyethylene

• R-12 open cell foam, no polyethylene

• 1 inch of expanded polystyrene against the wall behind 2X3 wall; no poly

• 1 inch extruded polystyrene against the wall behind 2X3 wall; no poly


Traditional wall

No poly wall

• Some trends so far but we have to wait for all ten houses to have a year of monitoring (not until January 2010)

• There is no wall that looks problematic based on the data provided so far

• There is quite a wide range of interior conditions from house to house that may make more difference than the performance of one wall to another





• So, are the alternate walls in the Saskatchewan houses doing better than the standard stud and poly wall?

• Generally yes, but there are not huge differences in these first 5 houses– Wall with no poly has lower moisture content than

wall with poly– Walls with 1 inch of foam against the wall doing

better than standard walls (except that high moisture between extruded board and concrete)


CMHC Northern Sustainable House Initiative

GOALS:

Culturally acceptable, affordable houses E/2 and E/9 houses to use 50% and 89%

less energy than conventional houses

built to MNECHJOINT EFFORT: Tr’ondëk Hwëch’in Han First Nation in Dawson

City YK Canada Mortgage and Housing Corporation



5 Houses compared:

MNECH EGH 70

Han standard EGH 78

NS E/2 (built) EGH 82

NS E/9 (built) EGH 86

NS E/9 Target EGH 90



NSH E/2 ENERGY REDUCING FEATURES

Main wall faces South Small windows on North R40 floor, walls; R60 roof High insulation levels Air tight construction Triple glazed windows High efficiency direct-

vented oil boiler



NSH E/9 ENERGY REDUCING FEATURES

Main wall faces South Small windows on North R40 floor, R50+ walls, R80

roof Triple glazed windows Electric baseboard

heating, heat recovery ventilator

2 solar hot water collectors and 85 gal. storage tank

Future solar hot water collectors and PV.

68% reduction



DESIGN CHANGES 45 South roof slope 25 North roof slope

Each house: 6m2 solar hot water

collectors on vertical facade

80m2 photovoltaics on roofENERGY PRODUCTION

• Photovoltaics offset 20% energy – improves net energy savings from 69% to 89%

Solar hot water collectors provide 63% annual hot water

89% reduction



DescriptionEnergy

reduction

EGHAdditional cost

Annual saving

sMNECH- low efficiency oil furnace

0 70 $0 $0

E/2 NSH as built 54% 82 $51,345 $3,000E/9 Flex as built 67% 84 $33,300 $3,400E/9 Solar as built with SDHW

68% 86 $52,040 $3,500

Target E/9 with SDHW and PV

89% 90 $142,040 $4,600


Other

•2009 Get it in Writing!

Initiative

CRA and CHBA initially launched the Get it in Writing! Campaign

in 1995

In 2008, CMHC was approached to lead a new Get it in Writing!

initiative given the corporation’s consumer marketing experience

Get it in Writing! is consistent with CMHC’s mandate to promote

better quality housing and to provide Canadians with unbiased

information to help them make better housing-related decisions


Get It In Writing Campaign

Get It In Writing!

– Website Live– Testimonials – Printed

Brochures - CRA


Other


Other

Online Brochure


CMHC Report

TRCCHBAMarch 2010

cmhc report technical research committee chba march 3, 2010

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