Radiant Barrier Installation Flat Roof

Ed finally debunks the myth that radiant barrier works directly.

Radiant barrier installation flat roof.

It is also recommended to notch the battens or leave spaces between the battens to allow for more airflow between the roof deck and the roofing material. When laying the foil insulation it is not. 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. Much of this heat travels by conduction through the roofing materials to the attic side of the roof.

The temperature of the attic space increases and that heat is transferred to the building below. With these types of roofing systems a radiant barrier can be incorporated easily and economically. When the sun heats a roof it s primarily the sun s radiant energy that makes the roof hot. The radiant barrier should be installed in a manner to minimize dust accumulation on the reflective surface.

Simply roll out roofing felt or another type of underlayment. For the majority of installations there are basically two different methods used to install radiant barrier foil in an attic. If you ve ever been told that foil works if you put it under shingles this video is for you. Starting at one end of your attic install our ultima foil breathable radiant barrier over across attic floor joists.

Then roll out perforated radiant barrier foil install battens as per manufacture instructions and attach roofing product. April 19 2019 posted in. 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. Increasing summer energy consumption and cooling costs.

Attics heat up when the sun s radiant energy heats the shingles and the heat is transferred to the interior attic space through the roofing materials via conduction. Roof systems on commercial buildings or flat roofed residences are usually quite different from most residential roofs. A key advantage to the foil is that it can be installed by the homeowner in an existing attic. 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.