Foam Insulation Board For Metal Roof

Some foam panel insulation is rigid enough to skip the step of installing a plywood sub roof but these materials are expensive and have weight load restrictions which can be an important consideration for roofs where snow can accumulate.

Foam insulation board for metal roof.

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. Closed cell spray foam which usually costs 1 to 1 50 per board foot and open cell spray foam which is within 0 44 to 0 65 per board foot. Vincent i live in a 100 year old adobe in northern utah and i installed a system of exactly what you describe except i put the roofing felt over the poly iso insulation and the metal roof is a modified standing seam from metal sales that has small corrugations that let a small amount of air to flow under the panel. Another option is double bubble 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. R matte plus 3 thermasheath 3 is rigid foam plastic thermal insulation r matte plus 3 thermasheath 3 is rigid foam plastic thermal insulation board composed of environmentally sound closed cell polyisocyanurate foam bonded to a durable white matte non glare aluminum facer and a reflective reinforced aluminum facer. Avoids nails or screws which could penetrate the metal roof and cause leaks. It s available in two types.

Wall insulation foam boards are much less dense than roof boards so be careful when choosing your product. Flat roof insulation installation the rigid foam board insulation we used was 2 thick and came in 4 x 8 sheets. Once the roof demo was complete and the flat roof was cleared of any remaining debris some rotted 2x material around the perimeter of the roof was replaced. 10 tall battens also seems like a bad idea.

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. 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. Nail it around the edges with roofing nails.

Foil insulation is a radiant barrier and it works by. Use rigid foam insulation to cover wider spans of roof sheathing between joists. My concern is for v5 structurally i don t think that i can just lay the battens atop the eps.