Traditional sheathing allows the sun s radiant heat to enter a home through the roof and walls which can cause extreme attic temperatures heat transfers and ultimately higher energy bills.
Radiant barrier plywood roof sheathing.
There are just a few manufacturers that make this unusual type of roof sheathing that has a shiny perforated aluminum foil craft paper laminated to one side of it.
Here are instruction on how to install a radiant barrier under a metal roof.
Other kinds of radiant barriers combine reflective materials usually aluminium foil with materials like plastic films cardboard and kraft paper.
Radiant energy transferred through standard roof sheathing creates heat build up in the attic.
More energy is needed to cool the house and that means higher energy costs for homeowners.
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.
With no barrier to restrict the heat it radiates through the insulation into living spaces causing room temperatures to rise.
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.
The most effective radiant barrier sheathing is a structural roof sheathing panel which consists of an osb panel with heat reflecting foil laminated to one side.
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.
Installed in over 1 5 million homes in the united states lp techshield panels also lower attic temperatures up to 30 f.
Coastal produces radiant barrier sheathing solarply panels as defined in us product standard ps2 10 for construction and industrial plywood.
However it is also used in wall systems.
Radiant barrier roof sheathing is a great product that will reduce your power bill.
Foil backed osb is applied mostly in attics.
As for the metal roof i would install atticfoil radiant barrier below the metal roof.
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.
Suitable applications include sheathing in walls flooring and roof decking.