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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
Find air leaks using an IR camera and blower door
See advice at greenbuildingadvisor.com
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GBA Green Building Advisor
Devil in the details
See advice at homeskor.com
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air sealing
Vandemeer Guide 5 pages
Ductmate sealant for metal ducts
See accessory at ductmate.com
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air sealing
Ductmate PROseal Series
Air sealing using an air current detector to find small holes
Sealed air barrier
80 sq. in. ELA
See product at certainteed.com
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air sealing
Air Barrier Stop uncontrolled air flow
Fresh air begins with fresh thinking
See service at bcfurnace.com
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air sealing
BC Furnace (604) 415-9471
DOW, building solutions
See manufacturer at building.dow.com
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air sealing
DOW Air Sealents
Restore your home with Insul-Twin’s insulation, siding, and window & door replacement services
See contractor at insul-twin.com
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air sealing
Insul-Twin Systems (604) 942-4948
More Saving. More Doing
See retailer at homedepot.ca
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air sealing
The Home Depot 1-800 628-0525
BMO Eco Smart Mortgage at a rate of 2.89% for 5 years
See financing at bmo.com
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air sealing
BMO Eco Smart Mortgage
Your home can be your most powerful financial tool
See financing at tdcanadatrust.com
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air sealing
TD Canada Trust Home Equity Line of Credit
Remedies for moisture related problems in homes
See advice at homeskor.com
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air sealing
CMHC Guide 27 pages
Siga doubl-sided assembly-aid air barrier tape
See accessory at www.siga.ch
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air sealing
Siga Twinet Series
Tested for Life in Canada
See retailer at canadiantire.ca
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air sealing
Canadian Tire (604) 431-3570
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
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
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air sealing
Air Barrier Stop uncontrolled air flow
Dupont, the miracles of science
See manufacturer at dupont.ca
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air sealing
Dupont Air Sealent
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Renovation guide
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