Metal Roof Insulation Options

Up to 6 r 19 can be used in a single layer appliction.

Metal roof insulation options.

The batts are located side to side on the rafter of the roof. Cut each sheet to the desired size using a utility knife then fasten it in place using staples or adhesive. Metal roof insulation options 1. Fiberglass insulation roll options when choosing metal building insulation there are several thicknesses or r value s to choose from ranging from 2 5 8 r 8 to 9 5 r 30.

It s one of the most effective options for metal roofing and it s very easy to work with. Higher roof pitches require additional considerations. Rigid foam board is just above the roof deck or an exterior insulation option. We re going to look at the best insulation options for metal garages and steel buildings.

Multiple thicknesses or layers can be combined in a double layer system to achieve high r values. Factory pre cut white vinyl faced fiber glass blankets are placed in between the metal roof purlins and held in place by steel strapping called banding screwed to the bottom of the purlin. The previous four options are all used beneath the roof. Bare foam board one sided sheathing board or double sided which is also reference as structural insulated panels.

60 x 80 4 800 note. Spray foam is a large scale version of what comes out of a can. Use rigid foam insulation to cover wider spans of roof sheathing between joists. 280 x 16 4 480 sqft.

Fiberglass batts or glass mineral wool metal roof insulation the most common material used for an insulating metal roof is fiberglass batts or glass mineral wool. It can be installed on old or new metal roofs without causing disruption or the need for reroofing. Metal roofing insulation is a green solution to reducing your heating and cooling costs. Your roof purlin spacing can vary but 5 on center and 8 inches in depth is common which is the available insulating area.

Both materials make a great physical barrier between the interior building and the metal roof. Each area is done independently because each requires a different formula. Below is how you would determine how much insulation is needed for a 60x80x16 metal building. It typically has 3 variations.

A good metal roofing insulation material should therefore have superior convective and radiant barrier capabilities. Fire retardant can be added to the mixture. Avoids nails or screws which could penetrate the metal roof and cause leaks. Bubble insulation is not reliable.

Radiant barrier insulation can be used in conjunction with thermal insulation or independently. 60 60 80 80 280 step 2. The following are the basic choices for metal roof insulation materials.