Stop air infiltration with caulk and sealing!

Air Infiltration can be one of the largest causes of energy loss.Caulk is the leading way to stop it. Often referred to as sealant, caulk comes in cartridges for use in a caulk gun or in smaller tubes that are squeezed by hand. The best caulk to seal air leaks is silicone as it stays flexible for a long time (50 years according to some manufacturers’ guarantees). Silicone cannot be painted, however, so if you must paint, use an acrylic latex caulk with silicone.

Even if windows and doors are sealed with weatherstripping, they can still allow a flow of air through gaps between the rough opening and the window or door jambs. The best way to seal these gaps is to remove the interior trim and fill up the space with non-expanding foam. This is a simple, inexpensive way to stop the air infiltration.

Carefully remove the tr im using a wide-blade putty knife and prybar. Trim off excess foam with a utility knife and re-install the trim.

A simpler but more visible alternative is to leave the interior trim in place and seal around it with a clear silicone caulk or paintable latex caulk with silicone.In many cases both, may want to be considered to achieve maximum benefit!

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