Double Bubble Reflective Foil Insulation R Value

The main one in the latter category is foil faced bubble wrap sold as insulation.

Double bubble reflective foil insulation r value.

The more airspace in the product the better it is at slowing heat transfer. Of owens corning fiberglass and r 5 per inch with foamular foam board. The r value is dependent upon the type of application used. For exact specifications per application contact the vendor.

Key benefits of this foil faced double bubble include. If the product is simply doubled with no air space between the layers a very minimal benefit is obtained r 1 1 per layer for the reflective double bubble. Convection mass air transport conduction by touch radiation. However we see claims of up to r 14 for some bubble products.

All our reflective double bubble products. If you are. In contrast reflectix is always tested as part of an assembly e g. Generally the following values are a good.

So by that logic if you wrap ducts with the double bubble foil then you would have your r 6. R value is roughly 10 6 when used in a ceiling. The r value of an assembly that includes foil faced bubble wrap could be significantly higher. Standard insulation is tested as a material with an r value per inch of thickness for example r 13 for 3 5 quot.

The r value of foil faced bubble wrap is about one. If you install 2 layers of a reflective insulation does the r value double. R value is roughly 5 3 when used in a floor. Double bubble insulation provides the maximum efficiency and highest r value for bubble insulation.

Any bubble insulation that is approximately thick can only achieve an average r value of 1 to 1 5 on its own. Double bubble insulation is the most effective bubble insulation with highest r value. A simulated wall with 2x4 studs dry wall an air space and layer of reflectix. Are two layers of polyethylene industrialized air bubbles bonded between exterior.

Heat moves by 3 methods. Any additional r value is achieved by the use of dead air spaces around the reflective product or in used in conjunction with other mass insulation products like fiberglass foam etc. Double the bubbles for double the airspace. Bubble foil does offer some r value because of the bubbles because remember radiant barrier does not have an r value on its own.

R value is roughly 6 8 when used in a wall. Our double bubble products are ideal for metal buildings where the control of condensation is necessary. If you read the fine print this rating is always achieved as part of an overall assembly which usually includes a lot of dead air spaces.