Polyiso Rigid Insulation R Value

Rigid insulation r value per inch chart hoskin.

Polyiso rigid insulation r value.

Polyisocyanurate polyiso is a closed cell rigid foam insulation board made with recycled content that is widely used in commercial roofing. This material offers the highest r values about r 6 to 6 5. Fm approved subject to the conditions of approval as a roof insulation when installed as shown in the current edition of the factory mutual research approvals guide. As part of that standard the products must meet r value requirements presented as long term thermal resistance lttr.

Polyiso is used in roof wall ceiling and specialty applications within commercial and residential buildings of all types. Conditioned per atsm c1289 test method astm c518 1 2. It provides r values that range from 3 6 to 4 2 per inch. Rigid polyisocyanurate thermal insulation board.

The requirements for measuring and reporting thermal resistance as well as minimum r values for polyiso products are described in two relevant product standards. Written by kupis on may 7 2020 in chart. Excellent lttr value compared to any other fm class 1 rated products of equivalent thickness. 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.

Thickness inches r value in i p imperial rsi r value in metric 0 5. What is polyiso insulation. For the united states market the applicable standard is astm c1289 standard specification for faced rigid cellular polyisocyanurate thermal insulation board. Updated recommendations although the lttr method for determining and reporting the.

Polyiso insulation is the best choice as a cost effective energy efficient and environmentally responsible insulation product. R value chart caflei closed cell and open insulation r values in pir roof insulation embly 5 interior insulated cmu wall gm 0702 to insulating sheathing. Polyiso rigid insulation r value chart. Value testing of polyisocyanurate insulation and found r values lower than the current lttr values.

R value chart for enerfoil tm rigid foam faced insulation. Polyiso has a high r value per inch compared to other insulation products. It provides about r 5 per inch. Benefits of energyguard polyiso roof insulation include.

Choose this option for areas that need a good amount of strength and water resistance. As foam ages over time air and blowing agents diffuse in and out of the foam structure resulting in reduced r value. Polyisocyanurate polyiso is a closed cell rigid foam board insulation that is bonded to facers on both sides which are composed of various organic and inorganic materials.