However radiant barriers can also be installed in other ways such as having it infused with your roof decking or underneath tiles.
Radiant barrier roof sheathing facts.
There is a misconception that if the heat is coming in through the roof shingles and.
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.
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.
Foil backed osb is applied mostly in attics.
The results were very telling.
Some of thefacts they list are.
Radiant energy transferred through standard roof sheathing creates heat build up in the attic.
Radiant barrier sheathing emits 3 5 of the heat it absorbs and can reducesummer heat gain in the roof from 16 to 42.
The hot roof material then radiates its gained heat energy onto the cooler attic surfaces including the air ducts and the attic floor.
With no barrier to restrict the heat it radiates through the insulation into living spaces causing room temperatures to rise.
A radiant barrier is typically stapled to the bottom truss chords against the deck sheathing.
For a picture of this in action you can check out the product listing on amazon.
Radiant barrier paint performed the worse providing a heat decrease in the conditioned space of around 19.
However it is also used in wall systems.
A control study was published in 2013 showing the radiant barrier effectiveness of paint foil backed sheathing and foil that was stapled onto the rafters.
More energy is needed to cool the house and that means higher energy costs for.
How traditional roof sheathing works.
It will seriously reduce your home s energy consumption.
If you like saving money and helping the environment you should really look into radiant barrier roof decking.
A radiant barrier reduces the radiant heat transfer from the underside of the roof to the other surfaces in the attic.
When installing any structural roof sheathing you are required to ensure the sheathing is spaced a minimum of 1 8 at all joints to allow for expansion and contraction due to changes in moisture conditions.
When installing radiant barrier roof sheathing ensure that the manufacturer s instructions are followed carefully.
Which type of radiant barrier is best.
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.
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.
Installed in over 1 5 million homes in the united states lp techshield panels also lower attic temperatures up to 30 f.
