Xps is a recyclable insulation that s mostly used in walls and below grade applications.
Rigid extruded polystyrene insulation panel for walls.
Pir polyiso or iso is a thermoset plastic product typically produced as a foam and used as rigid thermal insulation panel most often with aluminum foil facing.
As far as cost and r value goes xps is the middle option of the three.
Panels are 2 x4 with tongue and groove edges on the 4 length.
Foamular 150 rigid foam xps insulation for exterior walls contains hundreds of millions of densely packed air cells to provide excellent thermal performance.
Products provide superior insulating properties.
It s also virtually impervious to moisture preventing loss of r value due to moisture penetration.
Extruded polystyrene xps this is the most easily recognized type of rigid foam insulation thanks to its popular blue green or pink color.
Foamular extruded polystyrene xps rigid foam insulation offers foamular extruded polystyrene xps rigid foam insulation offers a comprehensive line of products choose the strength you need from 15 to 60 psi and exceptional moisture resistance.
Thermal performance is rated at r6 6 5 per inch but don t count on that if your winters are cold for the reasons we re about to explain.