The money and time you invest in weatherstripping your windows will be more than repaid in your heating and cooling bill savings. Most new windows include factory-installed weatherstripping, but if your windows don’t have weatherstipping, you can easily install it yourself.
Weatherstripping comes in three types: spring-type, pliable gasket, and compressible felt strips. The right type to use depends on the type of window and the situation.
* Spring-type weatherstripping is made from bronze, aluminum, stainless steel, or vinyl. The angled or V-shaped strips are the best kind to use for double-hung windows.
* Pliable-gasket weatherstripping is made of a springy material such as vinyl, foam, felt, or sponge. It is most effective for wood casement or hinged windows.
* Compressible felt strips are the least durable. They are best used only for warped windows that won’t accept more rigid stripping or for windows that aren’t often opened.