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i live in new england. my biggest question is not whether or not to use a radiant barrier, but how much insulation works best with it? The house i just moved to has very little insulation in the attic. Should i beef up the insulation first or only add the radiant barrier?
Thanks
Lee,
Radiant barrier is NOT a substitute for standard type insulation. Check your local codes to see what is recommended for your area.
We are looking for a radiant barrier for an open beam structure that does NOT require an air gap. Possible?
Nope, not possible to have a radiant barrier when there is no air gap. Reason is here: No Air Gap? No Radiant Barrier.
Is there any way to add radiant barrier to an existing vaulted ceiling? There is no crawl space
Linda, there isn’t really a way to do it without pulling down the sheetrock and emptying out the cavities OR without losing ceiling height. The foil HAS to have an air gap in order to work, so you have to create that gap either in the cavity or on the ceiling, which decreases the height in the room.