The best way to start saving energy is to search for air leaks within your home. Start by inspecting windows and doors and any place with cracks in the structure of the house. Use caulk to repair small cracks or spray foam insulation for larger cracks and holes. If a window pane is loose, you can fill in the seal with window glaze to tighten the pane.
Weatherstripping is a simple and inexpensive way to improve the seal on your windows and doors from inside your home. Rope caulk, a clay-like sealing product, and clear plastic film can also be installed around windows during the winter and removed in the spring. If your home has ductwork, you can use mastic sealant or metal tape to seal any possible leaks.
Blower door test
Finding air leaks in older homes
He suggests thinking of an older home (or any home) as a chimney. Heat is rising through the building … as it does in a chimney.
The first and best defense is make sure your attic is insulated properly. And then, you should prevent the infiltration of cold air by eliminating openings where it can slip in through the home’s exterior envelope.
Plug leaks with caulk, weather stripping and expandable foam. Then you’ll prevent the chimney effect from robbing your older home of its energy efficiency.