Eps Foam R Value Per Inch

The r value at 180 day real time age and 75ºf mean temperature is commonly used to compare products and is the value printed on the product.

Eps foam r value per inch. Eps has the lowest average r value of the three most common types of rigid foam insulation around r 4 per inch. R5 3 r6 1 product length ft 10 ft 1 2 ft 1 8 ft 2 product width in. This product typically has an r value of 3 6 to 4 0 per inch of thickness. In november 1992 nrca issued another bulletin in which it reaffirmed recommending an in service r value of 5 6 per inch of foam thickness for hcfc blown polyisocyanurate board products.

Eps insulation features an average r value of 3 6 per inch. When certain types of plastic facers are applied the composite product can feature an r value of up to 3 8 at one inch. For a 1 in thick 4 8 panel comes unfaced or with a number of different plastic facings. Owens corning foamular 150 1 in.

It also is the least expensive. Expanded polystyrene insulation is similar to the foam used for packing peanuts and it s typically used for insulated concrete forms also knows as icf s. It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation. Expanded polystyrene foam eps is the cheapest and least used foam board product on the market.

R 5 scored square edge rigid foam board insulation sheathing model 20we view the owens corning exterior. Eps is the eifs industry standard due to its established performance and overall value when compared with other board insulation options. Falls in the middle of the three types of rigid foam insulation in both cost and r value used most in walls or below grade applications recyclable and at about r 5 per inch costs around 42 per sq. Shop eps insulation shop polyiso insulation shop xps insulation sort by.

Eps is the insulation used most widely in insulated concrete forms and structural insulated panels sips. In the manufacturing process for polyisocyanurate blowing agents defuse from the cellular structure of the foam for many years after manufacture. Eps is used under roofing over foundation walls and beneath siding. Values at yield or 10 deflection whichever occurs first.

It is denser than eps and. The higher the r value the higher the insulating capability. The industry standard mean temperature for measuring r value is 75of. Value at yield or 5 whichever occurs first.

This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. Eps is suitable for ground contact and can be treated to resist insects. In addition to providing energy efficiency eps without film facers has a perm rating of up to 5 0.