Installing Fanfold Insulation On Roof

Consult local building codes and membrane manufacturers for system requirements.

Installing fanfold insulation on roof. It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches. The easiest and by far the quickest way to install metal roof insulation is with 1 inch staples. I plan on putting vinyl siding. Overlap seams by about 3 inches.

Foam board insulation is easy to use and is a great diy way to add some insulation. Beginning of installation means installer accepts the existing conditions. 12 15 moisture content or less before installing cavity insulation. It is not the normal insulation type that can be rolled up.

Putting an insulation layer could help you to stay away from this issue. 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. Benchmark foam s tapered expanded polystyrene eps roofing system provides effective drainage for flat roofs.

My house currently has cedar shake which i m removing because it is in poor condition. 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. 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. Verify that substrate dry and free of foreign material that will damage the fanfold underlayment.

If the existing siding is damaged remove it and install tri built fanfold underlayment directly to the substrate. Eps insulation is easy. Another benefit of using staples is that they do not make a large hole when penetrating into the sheathing. 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.

R tech ff is ideal in recover applications and is well suited for single ply roof applications that employ mechanically fastened or ballasted tpo pvc epdm and cspe membranes. R tech rigid foam fanfold insulation. Some types of thicker foam board insulation are available but they may need to be special ordered.