You need r value on your attic floor and you need a radiant barrier either stapled to the bottom of your rafters or laid out over the attic insulation.
Attic solar shield.
A radiant barrier works best when it is perpendicular to the radiant energy striking it.
Most are about a thick or less.
Attic shield is perforated sheets of aluminum foil designed especially to create a heat barrier in your attic.
Solar shield insulation is a reflective insulation effectively blocking almost all radiant heat energy that would otherwise be absorbed by and transferred through your insulation.
Solar shield will significantly reduce energy costs by virtually eliminating the effects of radiant heat transferred to your living space in the summer and reflecting.
Radiant barrier sheathing is inexpensive and reflects thermal radiation to keep attic spaces cool.
My ac run time is significantly lower now dennis in tx.
When installing attic insulation a case can be made for both radiant barrier sheathing with typical types of insulation as well as spray foam insulation.
A number of factors should be taken into consideration when choosing between these two especially the climate zone that you re building in.
A radiant barrier reduces the radiant heat transfer from the underside of the roof to the other surfaces in the attic.
A radiant barrier can lower heat transfer from attics to the building below keep the attic space cooler and lower cooling costs by up to 17 in warmer climates.
I never dreamed that it would make such a difference in the attic temperature.
48 wide atticfoil.
The hot roof material then radiates its gained heat energy onto the cooler attic surfaces including the air ducts and the attic floor.
Radiant barriers are utilized to reduce summer heat gain in attics and help to improve the efficiency of green building envelopes.
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Let s take a look at the actual r value of eshield solarguard prodex and bubble foil products.
Double reflective insulation roll with staple tab edge for a versatile insulation product select for a versatile insulation product select reflectix insulation to help save energy costs throughout the home.
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Reducing humidity and keeping heat from entering your home in the summer or escaping in the winter.