What are the benefits of rigid insulation?

In times of rising energy costs, people are seeking ways in which to make their homes more efficient. With proper insulation, you are able to spend less to keep the house warm in winter and cooler in summer. Rigid foam is an effective insulation. It has a high R value and can act as an air barrier as well. It can be used in three ways. This article details the benefits of rigid insulation.

Expanded polystyrene

Expanded polystyrene has an R value of 3.8 per inch. This kind of insulation works well in areas that do not have a lot of space such as in crawl spaces or in attics. You can install it directly to the interior wall. However, you must install fire board on top of it if it is on the interior of the wall. This insulation can be made with recycled materials such as cups and plastic cutlery from restaurants. It creates an effective air barrier for your home. It can come with a foil backing that can be on one or both side.

Polyisocyanurate

Polyisocyanurate has a high R value of 6.5 to 6.8 per inch. Like expanded polystyrene, this rigid insulation works well in spaces that do not have a lot of room. The R high value means that it will offer better insulation. Since the board does not deform easily despite the extremes of temperature, this rigid insulation works well as insulation for the roof. This insulation, when backed with foil, creates an even more effective insulation. It also becomes a good moisture and vapor barrier.

Molded expanded polystyrene

Molded expanded polystyrene is a closed cell foam that can be used for cups as well as for insulation. The foam Depending on the materials that are used to make this insulation, the foam can be so dense that you can walk on it without damage. It can be used for wall insulation, roof insulation and insulation for foundations wall. The R value of this rigid foam insulation can range from 3.8 to 4.4. The foam should have a protective layer. If dense enough, then this foam can be used in a structural fashion.