Double bubble foil insulation:
EcoFoil Double Bubble Foil Insulation is very thin (1/4″ to 5/16″), with a foil surface on each side. This insulation is rated and tested by reflectivity and emissivity. It is 96% reflective and 4% emissive, meaning the product only allows 4% of radiant heat to pass through it. To put it simple, the insulation does not try to slow the way heat passes through it, the insulation tries to eliminate heat from passing through it.
This insulation is constructed of a double layer of polyethylene bubble insulation, bonded to two radiant barrier metalized sheets. The insulation not only works well to reflect radiant heat, but it also works as a vapor barrier, preventing condensation which can cause mold. EcoFoil Double Bubble Foil Insulation is primarily used for pole barns, metal buildings, basement walls, crawl spaces, and storage units. Our insulation can be used for both new construction and existing buildings.
Important – You must tape any seams on the insulation. By doing this, the product acts as one sheet and maintains the moisture barrier. EcoFoil Double Bubble Foil Insulation is not to be used for under slab applications as the radiant barrier product is exposed. We offer a specific EcoFoil Under Slab Insulation where the radiant barrier is encapsulated between two layers of bubbles.
Use of Double bubble foil insulation:
- Use it only in hot or mixed climates where you have significant cooling loads. It’s a waste of money in a cold climate.
- Install it along the roofline rather than on top of the flat ceiling. In new construction, use a sheathing material with a foil facing, such as LP TechShield or Georgia Pacific’s Thermostat plywood. In existing homes, there are numerous radiant barriers for retrofit, such as PolarPly or foil-faced bubble wrap.
- Make sure to leave an air gap. If you install a radiant barrier roof deck and then spray foam on it, you’ve wasted your money on the radiant barrier because there’s no air gap, and all the heat just conducts right through it.
- In windows, radiant barriers are called low-e coatings, but they work on exactly the same principle – by installing a material with a low emissivity between where the heat is coming from and where you don’t want it to go. Foil-faced bubble wrap does NOT work for this application. Well, I guess it could be used here – if you didn’t care about getting light or views through your windows.
Contac us to order your requirements or call +880 1679-102388; +880 1711-522734, our stocks are available.