Polyurethane Foam Insulation R Value

Corrosion problems when in contact with steel roofing moisture.

Polyurethane foam insulation r value.

As a result of the high thermal resistance of the gas spray polyurethane insulation typically has an initial r value around r 3 4 to r 6 7 per inch. By expanding 100 times its original size icynene seals cracks and gaps in attics walls ceilings and other spaces where air might escape. Higher r value greater than 6 0 per inch r value approximately 3 5 per inch high moisture barrier lower moisture permeability lower moisture barrier higher moisture permeability air barrier. Very good air bypass leak sealing properties.

Lower strength and rigidity. Important for people living in the north such as minnesota is that the r value at 0 degrees f is 4 55. Eps has an r value of 3 85 at 75 degrees f. The r value goes up as the temperature drops.

Expect an r value of about 3 6 per inch. Choose foam it green spray foam insulation kits and don t settle for less than you deserve. 4 5 21. This makes it ideal for insulating roof assemblies that need to dry inward.

Air barrier at full wall thickness. R 0 77 30 phenolic foam insulation r values. For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3. Higher strength and rigidity.

If you d like to start saving money and time today buy foam it green spray foam insulation now or call us at 800 516 0949. 1 per bsaf 1 cu ft. Spray foam kits are quicker and easier to use plus you get a seamless air barrier and high r value in just 1 inch. 4 8 7 21.

Polyurethane is a closed cell foam insulation material that initially contains a low conductivity gas in its cells. There are two types of polyurethane spray foam insulation. Phenolic foam spray insulation. In comparison glass wool typically has an r value of only r 3 to r 4 per inch.

Open cell foam cells are not as dense and are filled with air which gives the insulation a spongy texture and a lower r value. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. Icynene sprayed in foam is an insulation and air seal system that works to help ensure that your home doesn t suffer from air loss while providing an effective r value.