#2 – Replace Your Windows and Doors
Windows and doors are also the weak points in the thermal control layer (insulation) of your house. Glass, wood, vinyl, and metal are all naturally poor insulators and are typically what your windows and doors are made of. But we can’t get rid of windows and doors completely so we recommend higher performing windows, such as triple-glazed with fiberglass frames, and doors with insulated cores. These windows and doors are probably better than your current ones, especially if they are old and haven’t been replaced in a long time. By replacing your windows and doors, it gives you the opportunity to install some of that caulking and weatherstripping we talked about in #1.
#3 – Add Insulation
Add insulation, especially in your attic. We know that warm air rises, and heat moves from warm to cold, so if your attic isn’t properly insulated you are losing huge amounts of heat through your ceiling. Attics are easily accessible and fairly simple to insulate; make sure to use insulation that will harmlessly allow moisture to dry out. Similarly, your basement floor and walls, which are constantly in contact with the cold ground, are likely losing large amounts of heat if they are uninsulated. These areas aren’t as easy to access, however, if you ever have to repair your drains or dig up your basement floor, this is the ideal time to add insulation under and around the edges of the floor slab.