Talk:Radiant barrier

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[edit] Dust when placed on attic floor

There is some reduction in reflectivity, usually no more than twenty percent. If your using a 97% efficient material this leaves about 80% efficiency. This is considerably more than the approximate 5-10% efficiency of fiberglass and cellulose and about 20% for foam.

If a 100 lb Kraft paper product with foil both sides is used then the radiant barrier will "ride" the peaks of the insulation,thus allowing for some airspace between the foil and fiberglass. It must also be kept in mind that fiber type insulations are about 99% airspace. The surface facing the insulation will not be affected by dust.

A two layer material can be constructed using the 100 lb Kraft/foil material and this configuration will make the dust question baseless. Materials over existing insulation must be perforated, and not stapled down.

--Rbisys (talk), thirty year radiant barrier supplier and installer.

Good points. Sections should be added that break out each type (paint, rafters, decking, on top of insulation, etc) and lists the pros/cons, how to install, etc. Also, what is 100lb Kraft, a brand name? --KarenJo90 01:57, 10 May 2007 (UTC)

[edit] Moisture

A section should be added for moisture condensation. KarenJo90 01:57, 10 May 2007 (UTC)

    Isn't this "not in the tone of an encyclopedia article?" I've seen this header before, and I think this one qualifies.  does anyone do this often enough to know?

Thanks. —Preceding unsigned comment added by 128.173.39.115 (talk) 06:05, 11 September 2007 (UTC)