Because of this i often get questions about which type of foam board insulation to use and what r values these products provide.
Iso rigid insulation r value.
Get free shipping on qualified iso foam board insulation or buy online pick up in store today in the building materials department.
The information on this page is based on data considered to be true and accurate based on periodic internal.
I ve written several posts about how to insulation basement walls in which i promote the use of foam board insulation as the first line of defense against moisture and mold.
Polyiso has a high r value per inch compared to other insulation products.
You can even place it under the foundation slab.
Rigid foam insulation also known as insulating boards provide high r values.
Rigid foam insulation packs a lot of r value into a thin package but not all rigid foam performs the same.
See also material data sheet msds 1511 or msds 1911.
Choose rigid insulation wisely and consider the effect its characteristics will have on the performance of the your project overall product cost and the best way to get the bang for your buck.
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Polyiso is unique in that the r value increases with the thickness of the foam so three inches of polyiso has a higher r value per inch than two inches.
Rigid insulation is one of the best tools to reduce your energy costs.
Firestone iso 95 gl insulation the highest thermal ratings.
The lttr test is a technically supported more.
Because it s highly energy efficient with the highest r value ratings per inch the use of iso 95 gl insulation in a firestone roofing system provides a cost effective solution for today s oof design r challenges and is preferred for any and every roofing system.
There are three basic foam insulation board products on the.
As foam ages over time air and blowing agents diffuse in and out of the foam structure resulting in reduced r value.
1 when joints penetrations detailed appropriately.
They keep your home at a comfortable temperature without the need to crank your heat.
Rigid polyisocyanurate thermal insulation board.
As part of that standard the products must meet r value requirements presented as long term thermal resistance lttr.
Install it anywhere from the roof to the foundation.