Installing Rigid Insulation Under Metal Roof

Nail it around the edges with roofing nails.

Installing rigid insulation under metal roof.

Cut each sheet to the desired size using a utility knife then fasten it in place using staples or adhesive. There are several ways you can do to insulate the metal roof. Use 2 1 2 inch deck screws to drive the furring strips into the foam and the wood framing beyond. Putting an insulation layer could help you to stay away from this issue.

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. Use rigid foam insulation to cover wider spans of roof sheathing between joists. Attach a weather proofing or vapor resistant sheet of material over the plywood. Lay and attach plywood or osb oriented strand board to the exterior.

How do i insulate a metal shed roof with rigid foam. You can easily go through several sheets of insulation and know that they are secure. It can be touted that foam batting material is the best one to pair with metal roof insulation. Avoids nails or screws which could penetrate the metal roof and cause leaks.

Remove the existing roof if you have one. It is not the normal insulation type that can be rolled up. The furring strips should run vertically from floor to ceiling or from eaves to rafters if you are installing them on a sloped ceiling. The easiest and by far the quickest way to install metal roof insulation is with 1 inch staples.

Insulating with spray foam insulation. Another benefit of using staples is that they do not make a large hole when penetrating into the sheathing.