Radiant Barrier Dilemma

thailen

I've been researching radiant barriers for my attic, which has 6" of floor
fiberglass insulation and noticed that there's a choice between single, double bubble barriers and layers of aluminum foil and other materials, with the cost the highest for the bubbles. Is there a significant difference in heat reflection, given the insulation already in place? Which should I buy?

HomeSealed

Where do you live? Radiant barriers are not a good investment in all locations... Regardless, you need to maje sure that you attic is properly air-sealed and insulated to code before giving it any consideration.

__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

thailen

In New Orleans, where summer usually lasts from April - November and winters are very mild.

SPS-1

I thought that radiant barriers in a hot climate were normally on the underside of the roof. The first result from a Google search seems to agree with me.
http://www.energysavers.gov/your_hom.../mytopic=11680

Gary in WA

Your 6" of insulation is about R-20, yet your area, Zone #2, requires R-30. I would air seal, as H.S. said, then add 1/3 more to at least the minimum Code; http://publicecodes.citation.com/ico..._11_sec002.htm

Gary

__________________