Rigid Insulation Under Metal Roof

In order to add moisture barrier under metal roof you can spray the undersides of the roof by using a thick layer of polyurethane spray foam.

Rigid insulation under metal roof.

Nail it around the edges with roofing nails. Whether you re installing a new roof or would just like to add insulation under the existing metal roofing our team will present you with your options and get the job taken care of once you decide. You have multiple options when it comes to choosing metal roofing insulation. Now let s go over your options.

Start at the bottom of the roof and place the first piece of rigid foam insulation against the metal flashing starting at the center line. Polyurethane spray foam metal roof insulation. Cut each sheet to the desired size using a utility knife then fasten it in place using staples or adhesive. Use rigid foam insulation to cover wider spans of roof sheathing between joists.

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. Foil insulation is a radiant barrier and it works by.