Polyiso Insulation R Value Per Inch

Keep in mind that polyiso s r value increases with thickness.

Polyiso insulation r value per inch.

It has one of the highest r values per inch of thickness among common insulations. And the change in lttr values effective january 1 2014. However labeled r value differs from in service r value for many insulations. Outstanding installed cost advantages and economical cost per r value.

This highly effective combination of materials offers a higher r value per inch compared to traditional flat sheet rigid foam insulation. Polyisocyanurate insulation is a common commercial and residential roof and wall insulation. This month nrca has revised and updated its recommen. Silverboard acoustic rigid foam insulation is a high silverboard acoustic rigid foam insulation is a high performance flat sheet insulation material made from expanded polystyrene eps which is coated with a layer of reflective film laminated on both sides.

Polyiso s unique benefits include highest r value per inch. A high r value per inch compared to other insulation products used in commercial and residential construction. Does not melt when exposed to flame versus other types of rigid foam board astm e84 the low permeability of foil facing coupled with polyiso s high thermal performance make it ideal for controlling condensation in walls. For example a two inch polyiso product has more than twice the insulating value than a one inch product.

Polyiso is unique in that the r value increases with the thickness of the foam so three inches of polyiso has a higher r value per inch than two inches. R value chart for enerfoil tm rigid foam faced insulation conditioned per atsm c1289 test method astm c518 1 2. Building science corporation bsc and others have been examining this difference. Polyiso has the highest r value per inch of any rigid board insulation.

Polyiso still remains the highest r value per inch of any available insulation. Polyiso has a high r value per inch compared to other insulation products. An exclusive third party thermal performance certification. With the publication of this interim update nrca has revised its design in service r value rec ommendation to 5 0 per inch thickness in all climate conditions.

A true environmental winner polyiso is a good choice for leadership in energy and environmental design leed credits. Of polyisocyanurate insulation used in roof systems. Polyiso insulation is the best choice as a cost effective energy efficient and environmentally responsible insulation product. Let s use the r value of iko s polyiso insulation enerfoil tm as an example.