Bubble Foil Attic Insulation

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Bubble foil attic insulation.

Double bubble insulation provides the maximum efficiency and highest r value for bubble insulation. 1 4 5 16 nominal thickness of foil bubble insulation 99 9 pure aluminum bonded to tear resistant polyethylene core and bubblewrap insulation. Using bubble insulation in attics if you are installing bubble foil in a vented attic meaning the attic is not sealed air tight then you don t need bubble foil. Green building advisor recently wrote an article about foil faced bubble wrap and did a balanced job of it.

Bubble foil insulation also known as reflectix is a radiant foil barrier. Key benefits of this foil faced double bubble include. Some products are considered vapor barriers while others are not. The main one in the latter category is foil faced bubble wrap sold as insulation.

Most brands of foil faced bubble wrap are only 3 8 inch thick or less and have an r valueof only 1 0 or 1 1. Starting at one end of your attic install our ultima foil breathable radiant barrier over across attic floor joists plywood decking or existing insulation. They presented the pros and cons and gave anecdotal evidence of this product having solved condensation problems. A piece of aluminum foil has been attached to some form of insulation about a 1 4 thick.

The insulation is typically fiberglass foam or plastic bubble wrap material. In the winter radiant barrier insulation will reflect the radiant heat energy back into your home. You will pay extra for the bubble foil but you will not get any additional benefit. All you need is a foil radiant barrier.

You can reduce attic temperatures by laying foil bubble insulation on the ceiling joists of the attic or stapling under the roof rafters. Since the product often costs more per square foot than 1 inch thick rigid foamrated at r 5 why would anyone use bubble wrap as insulation.