Installing Rigid Insulation Under Metal Roof

The easiest and by far the quickest way to install metal roof insulation is with 1 inch staples.

Installing rigid insulation under metal roof.

Measure the roof area and. 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. Insulating with spray foam insulation. Attach a weather proofing or vapor resistant sheet of material over the plywood.

Install 1 by 3 furring strips over the insulation panels on top of each stud. The furring strips should run vertically from floor to ceiling or from eaves to rafters if you are installing them on a sloped ceiling. There are several ways you can do to insulate the metal roof. Nail it around the edges with roofing nails.

Use rigid foam insulation to cover wider spans of roof sheathing between joists. Cut each sheet to the desired size using a utility knife then fasten it in place using staples or adhesive. It is not the normal insulation type that can be rolled up. It can be touted that foam batting material is the best one to pair with metal roof insulation.

Lay and attach plywood or osb oriented strand board to the exterior. Avoids nails or screws which could penetrate the metal roof and cause leaks. Use 2 1 2 inch deck screws to drive the furring strips into the foam and the wood framing beyond. You can easily go through several sheets of insulation and know that they are secure.

Tips to install metal roof insulation use foam batting. Another benefit of using staples is that they do not make a large hole when penetrating into the sheathing.