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Present day construction practices are delivering air-tight buildings which is great for energy efficiency in Alberta's cold, snowy environment. Unfortunately, this prevents building from breathing well, as typically there is no egress for the spent air.
Ventilation technology requires air to be moved as efficiently as possible, whether in the tightest or largest spaces, or under extreme ambient conditions (eg. thick pack snow blocking roof vents).
Air sealing techniques also reduce air leakage to the point that contaminants with known health effects such as formaldehyde, volatile organic compounds, and radon are sealed into the house. Ventilation also helps control moisture, which otherwise can lead to mold growth and structural damage; although typically perceived as a non issue in Alberta, during winter months moisture does cause internal problems.
The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) has determined that a home's living area should be ventilated at a CFM rate determined by adding 3% of the conditioned space floor area to 7.5 times the number of bedrooms plus one [formula: vent CFM = 0.03A + 7.5 (# bedrooms + 1)] as published by ASHRAE 62.2 in 2013.
In a tight home, mechanical ventilation is necessary to achieve this ventilation rate.
Call the professionals at Alberta Indoor Clean Air today. We’ll get your home fit with our ventilation products so you and your home can breathe better. You’ll benefit from quality equipment choices, knowledge and expert service.
215 – 41 Ave NE Calgary, AB
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We strive to accommodate Client's constraints, including appointments outside of core operating hours.