Project 1: Caulking
Caulking is a good way to block many of the air leaks that let outside temperatures lessen the efficiency of your heating and cooling systems.
Looking for air leaks is best accomplished on a breezy day. Check around outlets and look for gaps near the dryer vent, ducting, chimneys, and faucet pipes. Seal gaps with caulking, weather-stripping, or spray foam for large cracks.
There many types of caulk on the market for use on different surfaces and in various weather conditions. For instance, if using caulk on siding, windows, or doors, appropriate types include polymer, silicon/polymer, paintable silicone, and butyl rubber. Be sure to properly prepare the area to be caulked by cleaning it. Remove dirt, old caulk, and other particles to ensure lasting results.