How Blower Doors Work – 4202 Bellfort Ave Unit A

A blower door fan is a device used to measure air leakage in a home. Blower door tests are performed in homes to measure the amount of air leakage through cracks and gaps in the building envelope, essentially assessing how airtight a home is, which directly impacts energy efficiency, indoor comfort and air quality, identify areas where air is escaping and needs to be sealed; and making homeowners aware about prioritizing energy-saving improvements and reducing heating and cooling costs.

Air tightness and sealing is important, because air leakage can lead to a building’s energy efficiency being significantly impacted by substantial heat loss, which in return leads to other disadvantages such as higher energy bills, drafts and discomfort, and potential moisture issues. In the process, overall affecting indoor air quality, by allowing pollutants to enter the space. This is why it is imperative to search, identify and remedy air leaks.

Moisture or water vapor enters a home through various ways, which includes but not limited to air infiltration, diffusion through building material, leaks from the roof, plumbing leaks, flooding, human activities (bathing, cooking, dish washing, washing clothes), showering and some heating appliances.

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