Attic Baffles With Radiant Barrier

Baffles provide a channel for air to flow through certain parts of the attic.

Attic baffles with radiant barrier.

Also the greater the temperature difference between the sides of the radiant barrier material the greater the benefits a radiant barrier can offer. Installing radiant barrier under the roof decking is the preferred method versus on top of the insulation because it gives an air gap for the heat to escape to the ridge vent without creating a potential moisture problem between the radiant barrier and the attic floor. Your radiant barrier has a thin layer of aluminum on the surface spray foam will stick to it quite well. Does attic radiant barrier work.

If you install a radiant barrier it will drop the surface temperatures inside the attic compared to the air temperature in the attic. If you already have baffle vents in the attic and are wondering how you can work with them you can just use the slit method and make your slits cuts so they are right at the top of the baffles this should end up being about 48 up the rafter ends from the attic floor. Typically made from polyvinyl. Generally putting more than 1 5 to 2 of spray foam between wood studs is a waste of money.

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. Radiant barriers are utilized to reduce summer heat gain in attics. A radiant barrier reduces the radiant heat transfer from the underside of the roof to the other surfaces in the attic. Baffles are also called wind baffles venting chutes rafter vents or insulation baffles.

Unlike traditional thick layers of insulation radiant barrier is a thin reflective material. Radiant barrier should always be installed to work with the soffit and ridge. A radiant barrier works best when it is perpendicular to the radiant energy striking it. April 19 2019 posted in.

Increasing summer energy consumption and cooling costs. The temperature of the attic space increases and that heat is transferred to the building below. This method also reduces the heat subject to attic mounted ac duct work thereby allowing them to work more efficiently. This is really what drives heat flow the top surface temperature of the insulation.

Atticfoil is a perforated radiant barrier so it can handle the regular amount of moisture that naturally passes through the sheetrock and insulation but it could be overloaded if you have a large source of warm moisture laden air. This slit method will allow attic air to enter behind the radiant barrier foil and help with good attic ventilation. 0 i live outside phoenix az and i have a flat roof that will be redone no attic.