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Air sealing
ELA
Key efficiency factor
ELA rates total leakage in a home’s air barrier including ceilings, walls and floors.
Air barriers with lower ELA are more energy efficient… more
ELA rates total leakage in a home’s air barrier including ceilings, walls and floors.
Air barriers with lower ELA are more energy efficient.

ELA combines all holes responsible for uncontrolled air flow through a home’s air barrier.
ELA is short for equivalent leakage area at 10 pascal indoor/outdoor pressure difference. less
Typical range of NEW sealed air barriers:
90 sq. in. ELA
Air barrier
60 sq. in. ELA
Air barrier
30 sq. in. ELA
Air barrier
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Discover ideas, technology, rebates & more
Power smart guide: sealing, caulking and weatherstripping
See advice at hydro.mb.ca
See more advice
Manitoba Hydro Guide 56 pages
RBC Energy Saver™ Loan at 1% interest rate discount or a $100 rebate
See financing at rbcroyalbank.com
See more financing
air sealing
RBC Energy Saver Loan
The basics of a blower door and finding air leaks
See advice at greenbuildingadvisor.com
See more advice
air sealing
GBA Green Building Advisor
We ensure quality insulation solutions
See contractor at dhaliwalinsulation.com
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air sealing
Dhaliwal Insulation (604) 671-2308
Tested for Life in Canada
See retailer at canadiantire.ca
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air sealing
Canadian Tire (604) 431-3570
DOW, building solutions
See manufacturer at building.dow.com
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air sealing
DOW Air Sealents
Air sealing including caulking of leaks around plumbing stacks, pot lights and wiring
Sealed air barrier
200 sq. in. ELA
See product at certainteed.com
See more products
air sealing
Air Barrier Stop uncontrolled air flow
AccuTrex gasket for harsh outdoor environments
See accessory at accutrex.com
See more accessories
air sealing
AccuTrex EPDM Rubber
Air leakage testing and thermal imaging
See service at citygreen.ca
See more services
air sealing
City Green Solutions 1-866 381-9995
As well as home inspections we offer air quality and mold testing, thermal imaging and consultation services
See service at vancouver.pillartopost.com
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air sealing
Pillar to Post Home Inspector (604) 250-9263
Indoor air quality (IAQ)
See advice at epa.gov
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air sealing
EPA Web guide
Dupont, the miracles of science
See manufacturer at dupont.ca
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air sealing
Dupont Air Sealent
Successfully serving the building community for over 35 years
See contractor at fourseasonsinsulation.com
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air sealing
Four Seasons Insulation (604) 607-5022
Four Seven Five air barrier tapes for bonding of membranes and sheathing
See accessory at foursevenfive.com
See more accessories
air sealing
Four Seven Five Pro Clima Series
Your home can be your most powerful financial tool
See financing at tdcanadatrust.com
See more financing
air sealing
TD Canada Trust Home Equity Line of Credit
Air sealing including weatherstripping all windows, doors, and hatches
Sealed air barrier
160 sq. in. ELA
See product at certainteed.com
See more products
air sealing
Air Barrier Stop uncontrolled air flow
See more options
Renovation guide
All upgrade options Insulation Windows
Heating Air sealing Doors
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Attic insulation Ceilings no attic Wall insulation
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