Whole House Air Sealing

         Accurate Insulation, LLC offers Whole House Air Sealing, a very effective way of reducing energy consumption by reducing air leakage in homes and buildings.  This process involves the use of a blower door, which includes a fan that pulls air out of the house and allows outside air to flow in through unsealed cracks and openings.  Our mechanics can then find these leaks with the use of a smoke pencil and seal them.  This process results in lowering energy consumption, avoiding moisture condensation problems and uncomfortable drafts.

        Air leakage, or infriltration, is outside air that enters a house uncontrollably through cracks and openings.  A leaky house that allows a moldy, dusty crawlspace or attic air to enter is not healthy!  The recommended strategy in both new and old homes is to reduce air leakage as much as possible and to provide controlled ventilation as needed.

What are the benefits?

         Air infiltration can account for 30 percent or more of a home's heating and cooling costs and contribute to problems and moisture, noise, dust, and the entry of pollutants, insects, and rodents.  Reducing infiltration can significantly cut annual heating and cooling costs, improve building durability and create a healthier indoor environment.  The size of heating and cooling equipment can also be decreased which can also save additional money.

What are the priorities of air sealing?

         Although windows, doors, and outside walls contribute to air leakage, the biggest holes are usually hidden from view and connect the house to the attic, crawlspace, or basement.  The main key is to identify these areas during the design process, assign responsibility for sealing holes, and check to ensure that the air sealing was done effectively.  Usually, all big holes are sealed first, then the large cracks and penetrations, and finally, the smaller cracks and seams are sealed.