Fanfold Insulation Under Metal Roofing

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.

Fanfold insulation under metal roofing.

It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation. Once again this is used on cold roof construction. We ll add a vapor barrier so the moist air does not flow up through the insulation and condense on the roof. Make sure the product is designed to be used under metal.

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. To help with energy conservation and noise pollution many office buildings and homes use metal roof insulation as a way to cut down on these issues. When hot roof construction is done a roof with no ventilation a breathable underlayment is recommended. Traditionally we ve insulated the roof panel to try and keep the temperature on the panel from reaching the dew point.

It serves as a moisture barrier as well as a slip sheet. Installing metal roof insulation is not a difficult. In this article we are going to explore both financial and technical aspects when it comes to looking for the best method to insulate the metal roofing. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses.

The problem with using. But a preinstalled membrane may be even more effective at removing condensation. It is denser than eps and. Consult local building codes and membrane manufacturers for system requirements.

This type of underlayment is critical to a quality roof installation. Foil insulation is a radiant barrier and it works by. R tech rigid foam fanfold insulation. Eps is used under roofing over foundation walls and beneath siding.