How Can I Use Foam Board to Insulate?
Q: How can I use foam board to insulate?
A: Foam board is an awesome insulation option. Foam board, like spray foam, is closed cell, and polyurethane based.
The most commonly used foam board is called Extruded Polystyrene Foam, or XPS for short. You may also hear it referred to as ‘blue board’, or ‘pink board.’
This foam has an R-Value of 4.5 - 5 per inch, is affordable, and light-weight.
You can get fantastic results using foam board in combination with spray foam. All you have to do is adhere the foam board first, then spray 1″ or more on top of the board.
By installing the spray foam on top of the board, you will get an air tight seal, resistance to moisture penetration, and a super high R-Value. Plus, Foam It Green also prevents mold growth thanks to our Anti Microbial Formula.
To learn more about spray foam, and to get detailed project guides check out the ‘For Homeowners’ section on our website.
https://sprayfoamkit.shop/home-owners/residential-applications