How To Install Roof Insulation Foil

When you re using foil faced foam board insulation apply foil tape along the rafters to form an airtight seal.

How to install roof insulation foil.

When laying the foil insulation it is not. When installing foil insulation there are a few key tools you will require. Starting at one end of your attic install our ultima foil breathable radiant barrier over across attic floor joists. Foil insulation installation in an existing attic you can either staple rolls of foil radiant barrier insulation to the rafters or lay the foil out on top of the insulation.

After you are done cut to adjust the length and get ready to work the next layer. The first is stapling foil to the bottom of the roof rafters the second is laying it out over the existing attic ceiling insulation. Overlap seams by about 3 inches. These vary mildly depending on whether you are installing underfloor insulation ceiling insulation or wall insulation.

Foil insulation is insulation that has a thin layer of reflective foil on one or both sides and is designed to reflect heat. Install it vertically be sure to start from a high point and roll the insulation down. 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. Essentially you will require a staple gun and a pair of scissors in each scenario.

Cut and fit all the rafter spaces with foam board in the same manner. For the majority of installations there are basically two different methods used to install radiant barrier foil in an attic. Foil insulation can take any one of a number forms. Continue covering the attic floor by overlapping each section of radiant barrier already rolled out by 2 inches.

Attaching radiant barrier insulation to the rafters is the most effective method to employ but both methods have their advantages and disadvantages.