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.
Solar barrier 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.
We only say radiant barrier doesn t work because we know of a product that works even better and can save you over twice as much as current radiant barrier technology.
Now there is a newer better radiant barrier product called srx superreflex.
They don t however reduce heat conduction like thermal insulation materials.
Staples should be placed 14 to 18 inches apart.
Increasing summer energy consumption and cooling costs.
Radiant barriers may increase the temperature of your exterior roofline on a hot summer day by 2 to 5 as it reflects the sun s rays from entering into the attic but it will not cook your shingles.
April 19 2019 posted in.
The barriers consist of a highly reflective material that reflects radiant heat rather than absorbing it.
Just like a space suit or thermos bottle the reflective surface inhibits radiant heat transfer.
The temperature of the attic space increases and that heat is transferred to the building below.
In short yes attic radiant barrier does work.
Radiant barriers are utilized to reduce summer heat gain in attics.
When the insulation stays cooler your house will too.
Radiant barriers are installed in homes usually in attics primarily to reduce summer heat gain and reduce cooling costs.
Srx works better than radiant barrier.