High Density Foam Insulation R Value

Rigid foam insulation also known as insulating boards provide high r values.

High density foam insulation r value.

Aerogel has an r value of about r 10 per inch is 99 air and insulates up to 37 times higher r value than fiberglass. It is denser than eps and provides more r value with a rating of 5 per inch of thickness. Here are some currently available high r building insulation products as well as some specialty very high r insulation materials. Closed cell spray foam insulation.

Open cell foams are typically about 1 2 lb cubic foot. Closed cell foams are more dense and rigid typically about 2 lb cu. The r value is r 3 5 to r 3 6 per inch so filling a 2 4 cavity yields about an r 13. The material is costly and fragile factors that have limited its use in residential construction.

Open cell spray foam absorbs and holds water. 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. The installed insulation r value depends somewhat on the system manufacturer but generally speaking high density foam 2 0 pcf ranges between r 5 5 and r 6 5 per inch for the aged r value and low density foam 0 5pcf has an r value of approximately r 3 6 inch. Installed faced fiberglass batt insulation with its r value visible r 21.

Install it anywhere from the roof to the foundation. Aerogel is an extremely good thermal insulator which at a pressure of one tenth of an atmosphere has an r value of r 20 per inch of thickness compared to r 3 5 inch for a fiberglass blanket. It has a lower r value per inch than closed cell foam and is vapor permeable. This foam board insulation is available with straight or tongue and groove edges to help limit air movement.

Foam insulation densities vary among closed cell vs open cell forms. Rigid insulation is one of the best tools to reduce your energy costs. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. You can even place it under the foundation slab.