What is open-cell, low-density spray foam insulation?
Low-density open-cell spray foam insulation is a type of air sealing and thermal insulating material that uses an expanding gas to create a lightweight, sturdy wall or ceiling. Compared to traditional insulation materials like fiberglass, batt insulation, and thick cellulose, it keeps out the weather better and uses less energy.
Low-density open-cell spray foam performs well in cold climates due to its high R-value (a measure of how effective it is at resisting heat loss). Also, this type of insulation keeps moisture levels stable, and stops dry rot from doing damage.
Open cells are also designed to allow ventilation so that air can move through the product easily without causing bubbles or buildups. This allows for optimal performance during hot weather as well as in humid conditions.
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 Upstate spray foam experts, who can provide you with more information on which type of insulation should be used for your specific project.