Double Bubble Reflective Foil Insulation R Value

Convection mass air transport conduction by touch radiation.

Double bubble reflective foil insulation r value.

The main one in the latter category is foil faced bubble wrap sold as insulation. R value is roughly 6 8 when used in a wall. Bubble foil does offer some r value because of the bubbles because remember radiant barrier does not have an r value on its own. With multiple layers of product and airspaces between each layer enhanced performance will be gained.

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. However we see claims of up to r 14 for some bubble products. R value is roughly 10 6 when used in a ceiling. For exact specifications per application contact the vendor.

If you install 2 layers of a reflective insulation does the r value double. So by that logic if you wrap ducts with the double bubble foil then you would have your r 6. Insulation s r value is a measurement how much resistance against conduction. The foil face bubble wrap manufacturers may have a fantastic product but they unfortunately market their product to an industry that is unaware of codes that restrict its use.

If you are. 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. 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.

The r value of foil faced bubble wrap is about one. The r value is dependent upon the type of application used. 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. Generally the following values are a good.

Of owens corning fiberglass and r 5 per inch with foamular foam board. R value is roughly 5 3 when used in a floor. Standard insulation is tested as a material with an r value per inch of thickness for example r 13 for 3 5 quot. Key benefits of this foil faced double bubble include.

Double bubble insulation is the most effective bubble insulation with highest r value. Are two layers of polyethylene industrialized air bubbles bonded between exterior. Double the bubbles for double the airspace. Heat moves by 3 methods.

All our reflective double bubble products. Our double bubble products are ideal for metal buildings where the control of condensation is necessary. In contrast reflectix is always tested as part of an assembly e g.