As colder weather finally arrives, it’s an obvious time to make your home more comfortable and energy efficient. The best investment you can make – in terms of “payback” or avoided heating costs, is this: Seal air leaks and add insulation.

First, you want to stop warm air from moving up through the frame of the house and getting into the attic. This air movement is called the chimney effect. Sealing air spaces to prevent hot air from rising through your home is critically important. Sealing around drafty window frames, the foundation, and pipe entrances is also highly cost-effective.

After air-sealing, you want to improve the R-value of your attic insulation. This is usually easy and quite inexpensive. Blowing insulation into poorly insulated or non-insulated walls is also recommended. State programs provide generous financial incentives to help get this work done. Continue reading →