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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
Three strategies to improve indoor air quality
See advice at epa.gov
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EPA US Government
Henry, the #1 choice of professionals
See manufacturer at ca.henry.com
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air sealing
Henry Air Sealent
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
Indoor air quality (IAQ)
See advice at epa.gov
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air sealing
EPA Web guide
Doing it right
See retailer at rona.ca
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air sealing
Rona (604) 253-2822
Henry flexible thermoplastic quick-drying calking air sealent
See accessory at ca.henry.com
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air sealing
Henry Stone Mason Series
Coast Capital - Financing home renovations
See financing at coastcapitalsavings.com
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air sealing
Coast Capital Home Equity Line of Credit
When it comes to home inspections, we're on it under it and above it.
See service at harrisonhomeinspections.ca
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air sealing
Harrison Home Inspection (604) 230-5536
We can accomplish all your insulation needs, including spray foam, fibreglass and soundproofing
See contractor at knightsinsulation.ca
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air sealing
Knights Insulation (604) 437-7290
Gardner-Gibson white elastomeric sealant with silicone
See accessory at gardner-gibson.com
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air sealing
Gardner-Gibson Gardner A7 Series
Air sealing using a blower door to measure reduction in leakage area
Sealed air barrier
15 sq. in. ELA
CertainTeed Saint Gobain page about air sealing using a blower door to measure reduction in leakage area
See product at certainteed.com
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air sealing
Air Barrier Stop uncontrolled air flow
DOW, building solutions
See manufacturer at building.dow.com
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air sealing
DOW Air Sealents
Measuring air tightness with a blower door
See advice at homeskor.com
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air sealing
SouthFace Guide 2 pages
Our state of the art insulation techniques and materials will help you stay warm in the winter and cool in the summer
See contractor at westerninsulation.ca
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air sealing
Western Insulation LTD (778) 322-0922
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
Tested for Life in Canada
See retailer at canadiantire.ca
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air sealing
Canadian Tire (604) 431-3570
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