Installing Fanfold Insulation On Roof

12 15 moisture content or less before installing cavity insulation.

Installing fanfold insulation on roof.

Consult local building codes and membrane manufacturers for system requirements. You can easily go through several sheets of insulation and know that they are secure. A install tri built fanfold underlayments directly over old siding using galvanized or aluminum roofing nails with nails spaced about 2 feet apart. Beginning of installation means installer accepts the existing conditions.

Benchmark foam s tapered expanded polystyrene eps roofing system provides effective drainage for flat roofs. R tech rigid foam fanfold insulation. The easiest and by far the quickest way to install metal roof insulation is with 1 inch staples. If installing closed cell spray foam or other low permeance insulation to the interior it is very important to verify that the roof sheathing and framing are dry e g.

To install foil insulation roll it out parallel to the ridge and cut it with a utility knife starting at the drip edge and working your way up. There are several ways you can do to insulate the metal roof. If the existing siding is damaged remove it and install tri built fanfold underlayment directly to the substrate. My question is do i install fanfold foam insulation over the substrate and then put housewrap over the fanfold or do i put the housewrap on and then fanfold over that and then vinyl siding any help with this would be greatly appreciated.

Another benefit of using staples is that they do not make a large hole when penetrating into the sheathing. It is not the normal insulation type that can be rolled up. My house currently has cedar shake which i m removing because it is in poor condition. Putting an insulation layer could help you to stay away from this issue.

Verify that substrate dry and free of foreign material that will damage the fanfold underlayment. I plan on putting vinyl siding. Overlap seams by about 3 inches. It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches.

Eps insulation is easy. Tips to install metal roof insulation use foam batting. Some types of thicker foam board insulation are available but they may need to be special ordered.