OVER RAFTERS
(EXTERNAL)

To install SuperFOIL insulation, start by applying it horizontally on top of the rafters, securing the beginning with staples and rolling it out ensuring the material is kept taut to prevent the product from draping. Staple through SuperFOIL into the rafter at approximately 50mm-100mm intervals.

Cut and fasten each length, ensuring a 100mm taped overlap for successive layers. At the roof edges, fold back the external breather membrane, trim the internal insulation layers, fold the membrane over, and staple for a watertight finish.

After installation, check and seal all overlaps, then attach the correct size battens(to provide adequate air space) in line with the roof joists, before attaching your tile batten in line with the manufacturer’s guidelines.

Apply SuperFOIL by rolling it horizontally on top of the rafters, starting at the bottom. Staple the beginning in place onto the rafter and continue rolling the product across the rafters. Allow SuperFOIL to drape into the rafter void, creating a 10mm gap between the insulation and tile batten to let the water that accumulates or penetrates the tiles to run off. Staple through the SuperFOIL into the rafters at approximately 50mm-100mm intervals using the correct size staples.

Once you have finished a length, cut it to the correct size and fasten it into place before continuing to the next layer. Place the built-in 100mm taped overlap over the previous layer and continue with the installation using the same method. After installation, check and seal all overlaps, and complete the process by attaching tile battens following manufacturers’ guidelines.