Rigid Roof Insulation R Value

R matte plus 3 thermasheath 3 is rigid foam plastic thermal insulation r matte plus 3 thermasheath 3 is rigid foam plastic thermal insulation board composed of environmentally sound closed cell polyisocyanurate foam bonded to a durable white matte non glare aluminum facer and a reflective reinforced aluminum facer.

Rigid roof insulation 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. Rigid insulation is usually made up of fibrous materials or plastic foams. After the roof deck is ready the rigid foam insulation is installed. When it comes to insulation performance the difference is in the details.

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 part of that standard the products must meet r value requirements presented as long term thermal resistance lttr. All products in the acfoam polyiso roof insulation family are closed cell rigid foam insulation board flat or tapered. R3 r18 r21 total roof r value.

Depending on the type of insulation you choose and the desired r value you want for your facility you may need to build up a few layers of insulation. With premium polyiso manufacturing atlas is able to produce the highest effective r values with minimal material thickness. Foamular xps roof insulation for commercial buildings page 5 foamular xps roof insulation for commercial buildings foamular xps insulation is a rigid foam insulation which meets the needs of today s design professionals for a truly sustainable insulation product. Rigid foam insulation packs a lot of r value into a thin package but not all rigid foam performs the same.

Rigid polyisocyanurate thermal insulation board. Traditional loose fill insulation such as fiberglass or cellulose has an r value between r 2 0 and 3 5 per inch of thickness. Calculate percent improvement in r value. As foam ages over time air and blowing agents diffuse in and out of the foam structure resulting in reduced r value.

Firestone iso 95 gl polyiso insulation has a higher r value than other insulation products while also outperforming competitive polyiso at low temperature. The r value is a measurement of the heat loss and heat gain. This product is suitable for use in wall sheathing applications in new. Owens corning insulation products help improve thermal performance and control moisture in commercial institutional and.

The increase r21 r3 exactly 18 the value by which you are increasing the r value. Rigid insulation r value by comparison usually ranges from r 4 0 to 6 5 and may get as high as r 8 7 depending on the insulation material.