Formally Dow Thermax CI, OX corporate acquired the assets of the Illinois Dow Polyiso factory in 2013 and all rights to utilize the Type 1, Class 2 fiberglass core technology. These are the only two fiberglass core Class A foam boards sold in the exterior CI wall market today.
The IsoRed Max rigid polyiso insulation with multiple facer options meets E84 for Class A polyiso applications the sames as all Dow Thermax systems, for 30-year Thermal and 30-year System Warranties. These are the premier CI systems in the US and represent the best technology and warranty.
Energy Efficiency – Easily add R-value and eliminate insulation gaps. Multiple Applications – Use it on interior walls, exterior walls, ceilings and sub-terrain applications. Easy to Install – Light panels go up fast, saving time and money.