We're on a tight schedule, so I'll give you a quick summary of your options and recommend the best one. There are three primary ways to improve insulation: add walls (like adding a closet), add more ceiling insulation, or add floor insulation. Walls make for the most useful home improvements, because walls typically are present in every part of a house and are almost always poorly insulated, but most people don't have the space or budget for extra walls. The most effective ways to improve insulation are to cover attics, rafters, and joists with panels (I recommend closed-cell spray foam, for maximum insulation value) and to add additional sheathing to attics, rafters, and joists. Spray foam panels are installed with a machine that applies the spray foam under pressure, and the foam expands to fill any gaps, which makes the panels excellent at preventing air leaks (which are how heat is lost). In short, I recommend spraying all the interior, uninsulated walls, rafters, and joists with closed-cell spray foam, and also spraying the attic ceiling and any outside walls, as well. -----
assitant
Insulation, is that like putting a jacket on when it’s cold out? I see in the link you shared, it says that sealing drafts is the primary means of improving insulation. It’s important to check on the recommendations of a trusted resource on how to do this properly. In addition, there’s also attic insulation, which can be put in the attic of a house. And this one really sounds like the most work, because you need a special permit for access to the roof, but if you’re serious about energy efficiency it may be worth it. Do you have a house, or are you thinking about getting a new one? It’s hard to say without knowing more about your situation.
assistant
How can I improve my home's insulation?
user