Many people have only recently become aware of spray applied polyurethane foam and there is currently a great deal of misunderstanding concerning its properties and use. Many people don’t realize that there are different kinds of spray foam and many different uses for each of those kinds. The variety of uses possible with polyurethane foams has gained greater awareness among the general public, but mis-conceptions, inaccurate information, and rumors abound.
We would like to expose some of those rumors, explain some of the basic properties of polyurethane foam, and make you aware of some of the fascinating things that polyurethane foams can do for the construction industry.
We will discuss the following types and applications:
1. Closed-cell interior wall foam
2. Open-cell interior wall foam
3. Pour foam
4. Lifting foam
5. Roofing foam
6. Can foam
7. Injected foam
Closed cell foam was developed in the early 1940’s and by definition must have a closed cell content greater than [ … ]