Double Bubble Reflective Foil Insulation R Value

So by that logic if you wrap ducts with the double bubble foil then you would have your r 6.

Double bubble reflective foil insulation r value. R value is roughly 6 8 when used in a wall. The r value is dependent upon the type of application used. All our reflective double bubble products. Standard insulation is tested as a material with an r value per inch of thickness for example r 13 for 3 5 quot.

For exact specifications per application contact the vendor. If you are. The main one in the latter category is foil faced bubble wrap sold as insulation. The r value of an assembly that includes foil faced bubble wrap could be significantly higher.

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. A simulated wall with 2x4 studs dry wall an air space and layer of reflectix. 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. Double bubble insulation is the most effective bubble insulation with highest r value.

R value is roughly 5 3 when used in a floor. Of owens corning fiberglass and r 5 per inch with foamular foam board. Heat moves by 3 methods. Insulation s r value is a measurement how much resistance against conduction.

Double the bubbles for double the airspace. Generally the following values are a good. With multiple layers of product and airspaces between each layer enhanced performance will be gained. Key benefits of this foil faced double bubble include.

In contrast reflectix is always tested as part of an assembly e g. Convection mass air transport conduction by touch radiation. Our double bubble products are ideal for metal buildings where the control of condensation is necessary. The r value of foil faced bubble wrap is about one.

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. Are two layers of polyethylene industrialized air bubbles bonded between exterior. Bubble foil does offer some r value because of the bubbles because remember radiant barrier does not have an r value on its own. If you install 2 layers of a reflective insulation does the r value double.

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 provides the maximum efficiency and highest r value for bubble insulation. However we see claims of up to r 14 for some bubble products.