A radiant barrier reduces the radiant heat transfer from the underside of the roof to the other surfaces in the attic.
Radiant barrier roof sheathing reviews.
Thermostat radiant barrier sheathing is available in sfi certified plywood and osb panels for roof and gable wall sheathing.
As for the metal roof i would install atticfoil radiant barrier below the metal roof.
Oriented strand board osb with a thin layer of low emitting aluminum foil attached to one side is a common type of thermal radiant barrier sheathing.
A house protected by solarbord radiant barrier sheathing has a head start on comfort.
Radiant barrier applied either under the roof rafters or under the roof sheathing is probably the most common application of a radiant barrier but many homeowners shy away from it because they don t fully understand what radiant barrier is or how it works.
There is a misconception that if the heat is coming in through the roof shingles and.
This means the rest of the house will be cooler too.
The energy star rated sheathing blocks up to 97 of solar radiant heat carries a limited lifetime warranty and can contribute towards ngbs nahb green approved leed and earthcraft home certifications.
The osb techshield radiant barrier osb is engineered to improve energy efficiency.
As the original 1 brand of radiant barrier sheathing lp techshield panels vaporvents technology prevents moisture buildup during and after construction while blocking up to 97 of radiant heat in roof panels.
Specifications in selecting your radiant barrier sheathing make sure that the label indicated that the productemittance is less than 0 1 as measured by astm 1371.
Some of thefacts they list are.
Cooler attic cooler house.
If there is no insulation between the sheetrock and the roof deck between the rafters then you should definitely add insulation before putting a new roof on.
A cooler attic space means less heat moving to the cooler space below the attic.
This reflection insulation also has high mechanical properties making it perfect for load bearing applications in construction.
It reduces attic temperatures by up to 30 degrees fahrenheit and it blocks up to 97 of radiant heat.
However it is also used in wall systems.
The hot roof material then radiates its gained heat energy onto the cooler attic surfaces including the air ducts and the attic floor.
Radiant barrier sheathing emits 3 5 of the heat it absorbs and can reducesummer heat gain in the roof from 16 to 42.
Benefits of radiant barrier sheathing.
Up to 97 of radiant heat from the sun is reflected by solarbord so the attic can be up to 30 cooler.
A radiant barrier must have an emissivity of 0 1 or less to be effective.
Here are instruction on how to install a radiant barrier under a metal roof.
Foil backed osb is applied mostly in attics.
