It is denser than eps and provides more r value with a rating of 5 per inch of thickness.
Eps foam under metal roof.
R tech rigid foam fanfold insulation.
Metal sales 4 pack foam vented roof panel closure strip.
Ondura 4 pack cross link polyethylene solid roof panel closure strip.
R tech ff is ideal in recover applications and is well suited for single ply roof applications that employ mechanically fastened or ballasted tpo pvc epdm and cspe membranes.
Eps is used under roofing over foundation walls and beneath siding.
Consult local building codes and membrane manufacturers for system requirements.
Foil insulation underlayment is recommended under a metal roof and in most cases the shiny side should be facing up but there s a catch.