Rigid Foam Insulation R Value

The r value for foamular xps insulation is provided from testing at two mean temperatures 40ºf and 75ºf and from two aging conditioning techniques 180 day real.

Rigid foam insulation r value.

Because rigid foam plastic insulation products are not all aged in accordance with the same standards it is useful to publish comparison r value data. There are three basic foam insulation board products on the. Rigid insulation is usually made up of fibrous materials or plastic foams. R 3 2 polyisocyanurate rigid foam insulation board r matte plus 3 thermasheath 3 is rigid foam r matte plus 3 thermasheath 3 is rigid foam plastic thermal insulation board.

1 844 446 7858 my account. 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. Because of this i often get questions about which type of foam board insulation to use and what r values these products provide. Rmax r matte plus 3 1 2 in.

The thermal resistance of this material or effectiveness at keeping heat from passing through is known as rigid insulation r value. Used in this way the foam lowers the loss of energy through framing members a phenomenon called thermal bridging and increases the overall r value of the roof or wall assembly. It is often used as a layer of continuous insulation on exterior walls and in the roof. Traditional loose fill insulation such as fiberglass or cellulose has an r value between r 2 0 and 3 5 per inch of thickness.

Foam board insulation types. Rigid foam insulation packs a lot of r value into a relatively thin package. This type of rigid foam usually comes with a reflective foil facing on both sides so. Choose the right type of rigid foam for your needs.

When choosing rigid foam insulation you have three main options. The time of testing. It s made of environmentally sound closed cell polyisocyanurate foam bonded to a durable white matte non glare aluminum facer and a reflective reinforced aluminum facer. Rigid foam insulation packs a lot of r value into a thin package but not all rigid foam performs the same.

Our r value guide to rigid insulation includes the doe s recommended insulation by zone chart r value calculator and base building material r values chart. In general rigid insulation r value is higher than that of other materials used as insulators. This typically makes it a more efficient choice. Rigid insulation is typically a hard foam material that is used to help regulate the temperature in buildings.