Add Radiant Barrier Attic

You want to add the foil on all surfaces that make up the roof but you also need to keep vents open and clear of the foil.

Add radiant barrier attic.

The goal of adding a radiant barrier in your attic is to cover as much of the underside of the roof as possible. The barriers consist of a highly reflective material that reflects radiant heat rather than absorbing it. Those two methods are not as good as the rafter method because spray on has no air gap and the attic floor barrier collects dust. If you install a radiant barrier it will drop the surface temperatures inside the attic compared to the air temperature in the attic.

Then you need to add a radiant barrier over your insulation on the attic floor so you can stop convective looping in the insulation and help the home retain its heat. But on the bright side. Your radiant barrier makes the roof deck sheathing invisible from the attic. They don t however reduce heat conduction like thermal insulation materials.

Cut out any material around appliances that produce heat and or protrude through the attic floor canister lights and mark any electrical junction boxes that are covered by the radiant barrier. Staples should be placed 14 to 18 inches apart. Radiant barriers are utilized to reduce summer heat gain in attics. Radiant barriers are installed in homes usually in attics primarily to reduce summer heat gain and reduce cooling costs.

Also any water leak will fall onto the backside of the radiant barrier and roll down the slope until it reaches the eaves soffits. This basically allows for wood rot to continue and inspectors have a more difficult time finding areas of concern. Radiant barrier is a home insulation type that is focused on reducing summer heat gain. Staple the radiant barrier to all knew walls located in your attic space overlapping each piece by 2.

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. The ventilation in the attic should not be altered you need this to prevent ice damming and to keep the attic dry prevent moisture accrual. Click to view detailed instructions. It can easily be 120º or more even if the air temperature is only 100º.

In an open framed attic it is generally easiest to install the strips of radiant barrier roof material across the attic perpendicular to the direction of the roof joists overlapping each run by about 2 inches. There are two other ways to add an after construction radiant barrier spray on and attic floor. Unroll the radiant barrier hold in place and staple to bottom of roof joists.