Closed Cell Foam Board Insulation R Value

This foam board insulation is available with straight or tongue and groove edges to help limit air movement.

Closed cell foam board insulation r value. Xps has an r value of 4 5 to 5 0 per inch of thickness. Closed cell spray foam r values. Expanded polystyrene foam board 1 inch thick 3 8 4 4. They sport an r value of 6 0 8 0 per inch of insulation about double their open cell foam counterparts.

If you want to install spray foam in a stud wall and price is no object then it would seem to make sense to specify closed cell spray foam right. 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. Closed cell polystyrene spray foam 1 inch thick 6 5. Owens corning foamular 250 extruded polystyrene xps rigid foam insulation is a closed cell highly moisture resistant rigid foam board well suited to meet the needs for a wide variety of residential and commercial construction applications.

Of closed cell foam insulation the r value of the studs is based on a stud depth of 3 in not 3 1 2 in. R tech rigid foam insulation. As a result the heat loss due to thermal bridging through the framing is greater. R tech panels are an engineered rigid insulation consisting of a superior closed cell lightweight and resilient expanded polystyrene eps with advanced polymeric laminate facers.

This insulation board is probably one of the most widely used foam board insulation products in the residential construction industry. For 6 inches r 15 or r 19 etc. Two inches of closed cell foam will provide r12 r14 of insulation. Because the exposed portions of the studs are basically indoors and not part of the insulated wall assembly.

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. Why spray foam insulation is so effective in meeting code requirements is that it has a higher r value per inch of product used than batts. Closed cell foam r6 r8. Open cell spray foam has an r value of about r 3 7 per inch while closed cell spray foam has an r value that may be as high as r 6 5 per inch.

For example if a 2 4 wall has 3 in. Extruded polystyrene foam board 1. For example closed cell spray foam depending on brand can offer an r 6 or r 7 per inch. Closed cell spray foams are between 2 and 4 lbs.

Just like for open cell foam r values are additive. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. This is the product that i typically use to insulate basement walls.