Rigid Foam Under Metal Roof

Install rigid foam insulation over the entire surface of the roof.

Rigid foam under metal roof.

Insulating with spray foam insulation. Will that be a concern with metal roofing. Foil insulation is a radiant barrier and it works by. I would be interested to hear of the experience of others who have added insulation in this manner.

I agree to that extent and always recommend a solid deck or some sort of strapping to prevent this. As far as i know standing seam metal roofing can t be installed on rigid foam. Under consideration is the addition of eps xps or isc under the metal. Rigid foam works great and the metal can be installed directly over the top of it.

Use rigid foam insulation to cover wider spans of roof sheathing between joists. It has to be installed on plywood osb or possibly purlins. Rigid foam boards come in different material compositions varying thicknesses and different insulating r value properties. Plywood sheathing then roofing felt than 1 5 rigid foam metal roofing.

It will help you to eliminate problems that may come when the house becomes extremely cold in the winter and terribly hot in the summer. Use duct tape to seal the seams and further protect against moisture air leaks. Place the sheets close together but don t let them overlap. Polyurethane spray foam metal roof insulation 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.

Avoids nails or screws which could penetrate the metal roof and cause leaks. I have a 90 year old stone cottage in portland oregon. I am planning to reroof a house in maryland with standing seam metal. If you want to be sure talk to your roofer or the manufacturer of the roofing panels.

You just need to be careful not to pull torque the panels when fastening them. I know that most roofs have ventilation under them to prevent overheating of the roofing material. According to the manufacturer s instructions install the metal roofing panels over the insulation. 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.