Elastomeric Insulation R Value

Elastomeric insulation is a type of closed cell foam insulation that s waterproof and an excellent insulation.

Elastomeric insulation r value.

Notes on the r value k values of different forms of asbestos. Flexible elastomeric foams exhibit such a high resistance to the passage of water retarders that they do not. The r value is the measurement of the resistance of building materials and structures to the flow of heat and sound. Cellulouse insulation has a r value rating of 3 6 4 0 cubic inches which is one of the highest ratings in the industry.

Elastomeric foam insulation is a flexible closed cell foam based on nbr or epdm rubber. Reflective insulations retard the transfer of heat. It prevents moisture thus stops mold and mildew from forming. Rosato asbestos insulation is the most authoritative source on asbestos properties and gives data for the thermal conductivity of asbestos in different forms and with varying temperatures for magnesia asbestos insulation at mean temperatures ranging from 100 f to 400 f the k value thermal.

In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and an inch of blown cellulose in an attic has an r value of 3 2 3 7. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. They can be tested by the same methods as mass insulation and therefore assigned an r value. 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.

As a benchmark one inch of solid wood has an r value of 1. Notes to the table above.