Different Types of Insulation Materials

There are a number of different insulation materials used in the construction market today. Each and every material has benefits and disadvantages. There is only one type of product that will provide multiple advantages with minimal disadvantages?Pentoir Spray Foam!

Choosing the right insulation product for your project can have a large impact on your home or building's energy efficiency, comfort, and indoor air quality.

Open Cell Spray Foam

Pentoir Spray Foam Systems recommends and installs open cell spray foam. Open cell spray foam is semi-rigid polyurethane foam and one of the best all-purpose home insulation materials. Its lightweight open cell structure will allow liquid water to pass through without absorption but resists the flow of air, and with that water vapor.
Open cell foam is also called lightweight foam or 1/2-pound density foam. The main advantage of open cell foam is that it provides an excellent air barrier and sticks to places other insulations cannot. Excellent sound attenuation properties also add to its advantages.

Closed-cell Spray Foam

Pentoir Spray Foam Systems recommends and installs closed cell spray foam. Closed cell spray foam is a heavier rigid polyurethane foam insulation that provides a higher R value and a complete air and moisture barrier. The material is also called rigid or 2-lb density foam. Closed cell spray foam is typically best for exterior applications, below slabs and on masonry foundations, or in interior applications like pool rooms where moisture drive may be an issue. Its properties as a moisture barrier helps resist the intrusion of water and its rigidity can also be a benefit.

Cellulose

Cellulose insulation is a fibrous material that is made from shredded newspaper, borates, and glue. The material can be a good solution for pour on a ceiling to insulate a large area economically. With enough depth it does provide a fairly good air barrier, but it is still a fibrous material that is subject to settling or shifting. Some applicators also mix cellulose with water and apply the material vertically in stud cavities. Pentoir Spray Foam Systems does not install cellulose insulation.

Fiberglass

Fiberglass is a fibrous material made of woven strands of glass. This material is obviously the main material used for insulation - and has made a significant contribution to energy efficiency. Cellulose is inexpensive and is better than nothing however it is impossible to create air tight seals in order to maintain high R values. This will result in higher energy cost due to air infiltration. Pentoir Spray Foam Systems does not recommend nor install fiberglass insulation.

Cementous Foams

There are several brands of shaving cream type foams that are used for wall injection and block fill. These foams are relatively inexpensive and you can push them fairly well into an existing cavity. When installing this product you have to be careful because the material is water based, and is prone to shrinkage or collapse as it dries. It is impossible to create air tight seals in order to maintain high R values with cementous foams. This will result in higher energy cost due to air infiltration. Pentoir Spray Foam Systems does not recommend nor install cementous foams.

Mineral Wool / Rock Wool

Mineral wool is made from woven gypsum fibers. It is a good insulator and an excellent fire retarder however it is impossible to create air tight seals in order to maintain high R values. This will result in higher energy cost due to air infiltration. Pentoir Spray Foam Systems does not recommend nor install mineral wool.

Cotton Bats

There are several brands of recycled denim bats on the market that are a good substitute for fiberglass however it is impossible to create air tight seals in order to maintain high R values. This will result in higher energy cost due to air infiltration. They use recycled cloth as an input, and they have good sound attenuation properties. They contain the same borate materials as cellulose to improve fire properties and reduce but not eliminate the opportunity for mold growth. Pentoir Spray Foam Systems does not recommend nor install cotton batts.