Foam Board Insulation R Value Per Inch

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 realtime aged as mandated by astm c578 and a method of accelerated aging sometimes called long term thermal resistance lttr per can ulc s770 03.

Foam board insulation r value per inch.

Iso is the most expensive of all rigid insulation materials. It is denser than eps and provides more r value with a rating of 5 per inch of thickness. Along with knowing the r value of a particular insulation it is also important to calculate the r value of a total system. Xps has an r value of 4 5 to 5 0 per inch of thickness.

Closed cell insulation products such fiberglass batt insulation standard fiberglass insulation batts or blankets provide an r value of 2 2 to 3 8 per inch of thickness. Asbestos cement board r value. Blown in or loose fill insulation. Here are the installation methods from lowest to highest average r value per inch.

For example a wall with 3 fiberglass batting r value of 10 8. The r value of closed cell foam is r 6 5 7 per inch. When making a selection below to narrow your results down each selection made will reload the page to display the desired results. Note that the material the insulation is made from will change the r value as well.

Asbestos lagging and paste will have a lower value. Compare click to add item insofast exi 2 5 r 10 eps foam board insulation panels 40 sq. Insulation blankets batts and rolls spray foam insulation. 1 2 inch 3 3 4 inch 9 1 inch 16 1 1 2 inch.

Jun 12 2017 in regards to closed cell sprayed in foam insulation r value can range between r 4 9 to r 7 1 per inch. 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. 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. Rmax r matte plus 3 1 2 in.

This foam board insulation is available with straight or tongue and groove edges to help limit air movement. Ft to the compare list. With an r value of 6 5 per inch polyiso offers greater thermal resistance than other rigid foam products. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses.

Radiant barriers and vapor barriers are not rated by. Foam board insulation. 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. Extruded polystyrene foam xps also known as blue board or pink board comes in many different thicknesses and edge profiles.

Thermal conductivity k 0 15. Estimated r value of asbestos insulation per inch for pipe insulation corrugated paper.