Rigid Foam Insulation Under Metal Roof

You can even place it under the foundation slab.

Rigid foam insulation under metal roof.

Rigid insulation is one of the best tools to reduce your energy costs. Place the sheets close together but don t let them overlap. This foam can be used on either the outside or the inside of the sheathing. The foil insulation goes on top of the moisture barrier followed by the roof covering.

Insulating a metal shed roof with rigid foam can be done one of three ways by laying the board prior to applying the roof by removing the existing roof and installing new foam board or by insulating the existing metal roof from the inside. Install rigid foam insulation over the entire surface of the roof. Avoids nails or screws which could penetrate the metal roof and cause leaks. Use duct tape to seal the seams and further protect against moisture air leaks.

Financially speaking this spray is a great option especially when you need to renovate your roof after the application. Stabilizing the interior temperature and help to prevent material from collecting under the roofing material. The spray can be basically applied on top or bottom of the metal roofing surfaces. Insulating a metal shed roof can keep a shed warmer even without a heat source.

Insulating with spray foam insulation. Rigid foam insulation also known as insulating boards provide high r values. Compared to the fiberglass batts this insulation is much better. Yes providing a layer of insulation under a metal roof is imperative because metal is naturally a better heat conductor than wood.

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. If you use bubble foil or rigid foam insulation it also goes on top of the moisture barrier. Use rigid foam insulation to cover wider spans of roof sheathing between joists.

According to the manufacturer s instructions install the metal roofing panels over the insulation. The best material for use with metal roof insulation is in the form of foam batting.