What is closed cell spray foam insulation (high-density)?
- One of the most effective, energy-efficient, and structurally sound insulation options is closed cell foam, also referred to as two-pound foam, which has a high thermal value. Spray foam with a high density is used because of its higher strength and high R-value. It has a high-density cellular composition and is, as its name implies, composed entirely of closed components. Compared to other conventional insulation options, the densely packed cells guarantee a high standard of insulation. The foam's tightly packed cells also make it impossible for air or moisture to seep inside, giving it a rigid and stable structure.
- Closed-cell foam is more durable, a better insulator, and less prone to air and moisture transmission than the open-cell SPF. However, even when comparing the R-value, closed-cell foam insulation has about double the R-value to open-cell. It also has a vapor barrier and thermal barrier providing a sealed envelope. As a result, closed-cell foam outperforms fiberglass and cellulose insulation.
Which insulation should I use?
The choice between open-cell and closed-cell foam is frequently based on performance characteristics that are application-specific, such as structural integrity, control of water vapor, and the amount of installation space that is available.
There are also more general things to think about when choosing between open-cell and closed-cell foam, in addition to the specifics of the situation. For example, open-cell foam isn't usually recommended for applications below grade or where it might come into direct contact with water. Closed-cell foam isn't usually recommended for soundproofing applications because open-cell foam is better and cheaper.
Of course, it's a good idea to talk with your SPF installation expert as you plan your project. They will recommend the type of foam that will provide the best performance for your project.
Consult one of our Vero Beach spray foam experts, who can provide you with more information on which type of insulation should be used for your specific project