Attic Baffles With Radiant Barrier

Does attic radiant barrier work.

Attic baffles with radiant barrier.

Radiant barriers are utilized to reduce summer heat gain in attics. Increasing summer energy consumption and cooling costs. A radiant barrier works best when it is perpendicular to the radiant energy striking it. Your radiant barrier has a thin layer of aluminum on the surface spray foam will stick to it quite well.

This is really what drives heat flow the top surface temperature of the insulation. Radiantguard radiant barrier foil insulation installed in an attics can reduce attic temperatures by up to 30 degrees when stapled with a staple gun to the underside of roof rafters by reflecting up to 97 of the radiant heat that strikes its surface thereby reducing heat transfer from the attic to living spaces resulting in lower utility bills. This thin reflective material is designed to bounce the sun s heat away from your home instead of allowing your attic to absorb the heat and pass it into your home. This method also reduces the heat subject to attic mounted ac duct work thereby allowing them to work more efficiently.

Radiant barrier should always be installed to work with the soffit and ridge. Typically made from polyvinyl. A radiant barrier reduces the radiant heat transfer from the underside of the roof to the other surfaces in the attic. Generally putting more than 1 5 to 2 of spray foam between wood studs is a waste of money.

Baffles are also called wind baffles venting chutes rafter vents or insulation baffles. This slit method will allow attic air to enter behind the radiant barrier foil and help with good attic ventilation. The temperature of the attic space increases and that heat is transferred to the building below. Also the greater the temperature difference between the sides of the radiant barrier material the greater the benefits a radiant barrier can offer.

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. If you install a radiant barrier it will drop the surface temperatures inside the attic compared to the air temperature in the attic. April 19 2019 posted in. Unlike traditional thick layers of insulation radiant barrier is a thin reflective material.

Baffles provide a channel for air to flow through certain parts of the attic. 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. Spray foam cures from the chemicals that are mixed inside the spray gun if properly mixed it will cure no matter the surface.