- Drafty rooms
- Hot or cold ceilings, walls, or whole rooms; uneven temperature between rooms
- High heating or cooling bills
- Ice dams in the winter
Spray foam insulation has begun to be used in homes fairly recently. There are two types of spray foam insulation: open cell and closed cell. Closed cell insulation typically has a higher R-value, so you get more bang for your buck. Spray foam insulation is very expensive. The product is more expensive inch for inch, and requires installation by a professional. It's sprayed in your walls as a liquid, then expands and hardens. Spray foam insulation is great because it fills every little nook and cranny creating an air tight seal. It doesn't biodegrade, so once installed it will be there for the life of your home. It also doesn't shrink or settle. Spray foam is a great option if you're sealing small spaces like outlets, around window frames, and doorways. If you're going to install spray foam insulation in your walls, be prepared to pay dearly for it. This is your most expensive insulation option.