Tightening your building envelope means you’ll need to close up gaps, beef up insulation, and otherwise shore up your home’s defenses against the outside environment. Your home’s building envelope consists of anything that keeps the inside in and the outside out. The more insulated and less drafty your home’s components are, the better your envelope is.
As you can imagine, your roof and attic are a large part of your home’s building envelope. In summer, you have to consider how to keep out the sun’s excess heat, but in winter, keeping in your heated air is the big issue. Here are some ideas on how you can upgrade, improve, and supplement your roof and attic with this in mind.