Radiant Barrier Installation Flat Roof

April 19 2019 posted in.

Radiant barrier installation flat roof.

Radiant barriers are utilized to reduce summer heat gain in attics. When laying the foil insulation it is not. When the sun heats a roof it s primarily the sun s radiant energy that makes the roof hot. The final type of radiant barrier we are looking at is the after market approach which involves stapling radiant barrier foil to the underside of the roofing joists.

The radiant barrier should be installed in a manner to minimize dust accumulation on the reflective surface. If you ve ever been told that foil works if you put it under shingles this video is for you. Roof systems on commercial buildings or flat roofed residences are usually quite different from most residential roofs. The temperature of the attic space increases and that heat is transferred to the building below.

Continue covering the attic floor by overlapping each section of radiant barrier already rolled out by 2 inches. Then roll out perforated radiant barrier foil install battens as per manufacture instructions and attach roofing product. Increasing summer energy consumption and cooling costs. Starting at one end of your attic install our ultima foil breathable radiant barrier over across attic floor joists.

Using radiant barrier outside on flat roofs concrete buildings would laying atticfoil directly on the roof of these buildings be effective in reducing the heat absorbed by the roof and radiating into the structure below. Ed finally debunks the myth that radiant barrier works directly. A key advantage to the foil is that it can be installed by the homeowner in an existing attic. With these types of roofing systems a radiant barrier can be incorporated easily and economically.

Simply roll out roofing felt or another type of underlayment. Installation methods include radiant barrier draped over the rafters applied directly to the roof sheathing stapling to the bottom of the rafters and even laying radiant barrier on top of the attic floor insulation. The first is stapling foil to the bottom of the roof rafters the second is laying it out over the existing attic ceiling insulation. Much of this heat travels by conduction through the roofing materials to the attic side of the roof.