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Air Leakage In A Home Wastes Heating And Cooling - And Costs Money

April 21, 2017

In a typical home, air leakage is simply a waste of winter heating and summer air conditioning. While most homeowners might seek a remedy by improving insulation, that's really only part of the problem. For experienced home energy experts, resolving the actual air leakage has proven to be much more impactful than most other approaches - it's the first step to energy efficiency. For optimum energy efficiency, a home should be effectively sealed. This will allow air movement (in and out of the home) to be better managed. Once a home is well sealed, the HVAC system (heating, ventilation, and air conditioning) manages air circulation more efficiently throughout the home. With better overall energy efficiency, utility costs are reduced from season to season.

The "blower door test" measures air leakage in a home

air leakage hot and cold air escapingA "blower door test" assesses the rate of air leakage in a "building envelope". Using specialized equipment, this test determines air tightness and identifies areas of the home that are leaking air. In fact, during a Home Energy Audit, "before and after" results are particularly valuable in order to understand where to retrofit, to what extent, and with what type of products. The "blower door test" depressurizes the home, causing outside air to flow into the home by way of gaps, holes, and cracks. Once completed, the test determines the various sources of air leakage and the extent of the problem. With this type of analysis, a home with little air leakage achieves a high rating, while a home with substantial air leakage will achieve a lower rating.

It's important to assess the entire home for air leakage

In most every home, there's air leakage due to poorly sealed windows and doors. But, there are also other sources of air leakage. This is where a home energy expert would be valuable, knowing where to look and where to test, and consequently, how to remedy. Whatever the source of air leakage, it's like leaving a window open all the time - simply a waste of heating and/or cooling. Companies like Great Northern Insulation examine the entire "building envelope" of a home and identify the full scope of air leakage. In this way, air leaks can be properly sealed, whether in the walls, floors, ceilings, or roof cavities. A well-sealed home, with appropriate air ventilation, will experience fewer drafts, better air quality, and most importantly, reduced heating/cooling bills.

Air leakage can be addressed with a variety of retrofits

All homes (including new construction) suffer from air leakage. As for remedies, there are several options - everything from draft proofing windows and doors; to sealing up gaps and openings; to installing spray foam insulation. The idea, of course, is to diminish air leakage and gain control of air movement throughout the home. Home energy efficiency is the key to reducing energy costs for winter heating and summer air conditioning. At Great Northern Insulation, homeowners are assured that industry professionals are handling their home energy issues. For more information, visit the website at www.gni.ca or call toll free 1-800-265-1914.

Western Ontario

935 Keyes Drive
Woodstock, Ontario
Canada N4V 1C3

Phone: 1-800-265-1914

Fax: (519) 539-7946
TOLL FREE: 1-800-265-1914

Southwestern Ontario

7035 Industrial Drive
Comber, Ontario
Canada N0P 1J0

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1027 Elwell Park Road
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Canada P1P 1R1

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29 Ferndale Industrial Drive
Barrie, Ontario
Canada L4N 9V5

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Port Perry, Ontario
Canada L9L 1B2

TOLL FREE: 1-800-265-1914

GTA & South Central Ontario

450 Industrial Dr,
Toronto (Milton), Ontario
Canada L9T 5A6

TOLL FREE: 1-800-265-1914

Eastern Ontario

1035 Moodie Dr #1,
Nepean, ON
K2R 1H4

TOLL FREE: 1-800-265-1914


259 Campbell Street
Sarnia Ontario
Canada, N7T 2H3

TOLL FREE: 1-800-265-1914

Niagara Region

6260 Don Murie St
Niagara Falls, ON
L2G 0B4

TOLL FREE: 1-800-265-1914


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From reputation to responsiveness, HomeStars consistently ranks Great Northern Insulation at better than 95% for customer satisfaction. Thanks to everyone for the great ratings! 

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For the second year in a row, HomeStars consistently ranks Great Northern Insulation at better than 95% for customer satisfaction. Thank you again to everyone!

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For the third year in a row, HomeStars ranked Great Northern Insulation at better than 95% for customer satisfaction.

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