Reflective Foil Bubble Insulation R Value

Our double bubble products are ideal for metal buildings where the control of condensation is necessary.

Reflective foil bubble insulation r value.

The r value of reflective insulation is not measured by the inch. 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. If you install 2 layers of a reflective insulation does the r value double.

The rubber meets the road on reflectix s website where it says no air space no reflective insulation benefit. Although prodex total is not a foil faced bubble wrap we will answer the author s question because foil faced bubble wrap is a reflective insulation that deserves a defense. Double bubble insulation provides the maximum efficiency and highest r value for bubble insulation. Key benefits of this foil faced double bubble include.

An r 1 1 is provided from the product itself for the reflective double bubble material. In contrast reflectix is always tested as part of an assembly e g. Reflective insulation and radiant barriers that are safe easy to install and thermodynamically efficient for new building construction. Double bubble insulation is the most effective bubble insulation with highest r value.

Air space equals r value. With multiple layers of product and airspaces between each layer enhanced performance will be gained. 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 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.

Any bubble insulation that is approximately thick can only achieve an average r value of 1 to 1 5 on its own. The r value of reflective insulation is measured within a system. 1 4 5 16 nominal thickness of foil bubble insulation. If you don t provide air space this product provides almost no insulating value.

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. Convection mass air transport conduction by touch radiation. Insulation s r value is a measurement how much resistance against conduction. Heat moves by 3 methods.

A simulated wall with 2x4 studs dry wall an air space and layer of reflectix. The main one in the latter category is foil faced bubble wrap sold as insulation. Of owens corning fiberglass and r 5 per inch with foamular foam board.