Foil Bubble Wrap Insulation

Green building advisor recently wrote an article about foil faced bubble wrap and did a balanced job of it.

Foil bubble wrap insulation.

Most brands of foil faced bubble wrap are only 3 8 inch thick or less and have an r value of only 1 0 or 1 1. Reflective insulation is tested in the same manner as fiberglass and foam products and in wall and floor systems provides a year around r value benefit quot. R values depend on application. Since the product often costs more per square foot than 1 inch thick rigid foam rated at r 5 why would anyone use bubble wrap as insulation.

4 6 out of 5 stars 407. Between joist insulation between joist insulation is made from the same material as our top selling double bubble product. The main one in the latter category is foil faced bubble wrap sold as insulation. Double bubble reflective foil insulation 24 inch x 10 ft roll industrial strength commercial grade no tear radiant barrier wrap for weatherproofing attics windows garages rv s ducts more.

144 44 144. There is no question that lining the shed with a sheet material will cut out on draughts and reduce heat loss. The purpose of the insulation is to make it nicer to work in and also to prevent tools rusting. The r value of foil faced bubble wrap is so low that it has few if any advantages over rigid foam.

The metalized foil in under slab insulation is sandwiched between a layer of polyethylene bubbles on each side to protect it. Double bubble reflective foil insulation 36 inch x 125 ft roll industrial strength commercial grade no tear radiant barrier wrap for weatherproofing attics windows garages rv s ducts more. First a radiant barrier is the key part of reflective insulation e g. R 15 2 heat flow down r 8 5 horizontal heat flow.

Class a class 1 fire rating. No mess no itchy fibers. They presented the pros and cons and gave anecdotal evidence of this product having solved condensation problems. Reflectix 4 ft.

Foil faced bubble wrap insulation makes an excellent thermal barrier barrier for methane radon moisture termites and other pests thermal resistance in a 3 5 cavity. Thd sku 469837. This is the only product that we sell that is rated for use under concrete slabs. I have heard some say that the insulation could be installed loosely to maintain the gap.

Double reflective insulation r values range from r 3 7 to r 17. Looking at the table of insulation values bubble wrap and foil will have limited benefit on reducing heat loss.