Reflective Bubble Insulation R Value

Double bubble insulation is the most effective bubble insulation with highest r value.

Reflective bubble insulation r value.

Air space equals r 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. Are two layers of polyethylene industrialized air bubbles bonded between exterior. Some products say r4 r6 or r8.

Insulation companies who make metallic bubble wrap or their distributors like to boast about their products attributes and often add the equivalent reflective r values to the conductive values giving an overall equivalent r value. The rubber meets the road on reflectix s website where it says no air space no reflective insulation benefit. Of owens corning fiberglass and r 5 per inch with foamular foam board. If you don t provide air space this product provides almost no insulating value.

Key benefits of this foil faced double bubble include. The r value of reflective insulation is measured within a system. Our double bubble products are ideal for metal buildings where the control of condensation is necessary. Double bubble insulation provides the maximum efficiency and highest r value for bubble insulation.

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. An r 1 1 is provided from the product itself for the reflective double bubble material. 1 4 5 16 nominal thickness of foil bubble insulation.

The r value of reflective insulation is not measured by the inch. Any bubble insulation that is approximately thick can only achieve an average r value of 1 to 1 5 on its own. It does as you point out change the conductive properties. With multiple layers of product and airspaces between each layer enhanced performance will be gained.

The approximate r value of the air space would be about 1. In contrast reflectix is always tested as part of an assembly e g. More buying choices 144 44 10 new offers. All our reflective double bubble products.

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. A simulated wall with 2x4 studs dry wall an air space and layer of reflectix.