Reflective Bubble Insulation R Value

Any bubble insulation that is approximately thick can only achieve an average r value of 1 to 1 5 on its own.

Reflective bubble insulation r value.

The approximate r value of the air space would be about 1. Are two layers of polyethylene industrialized air bubbles bonded between exterior. A simulated wall with 2x4 studs dry wall an air space and layer of reflectix. More buying choices 144 44 10 new offers.

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

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. 1 4 5 16 nominal thickness of foil bubble insulation. All our reflective double bubble products.

Air space equals r value. After all the trouble of trying to keep the bubble wrap off the ducts the total r value would be 2 instead of 1 which may be insufficient to prevent condensation under some conditions. An r 1 1 is provided from the product itself for the reflective double bubble material. If you install 2 layers of a reflective insulation does the r value double.

The r value of reflective insulation is not measured by the inch. It does as you point out change the conductive properties. If you don t provide air space this product provides almost no insulating value. In contrast reflectix is always tested as part of an assembly e g.

400sqft double bubble reflective foil insulation 4 x 100 ft roll industrial strength commercial grade no tear radiant barrier wrap weatherproofing attics windows garages rv s ducts more 4 4 out of 5 stars 56. Of owens corning fiberglass and r 5 per inch with foamular foam board. Double bubble insulation provides the maximum efficiency and highest r value for bubble insulation. Our double bubble products are ideal for metal buildings where the control of condensation is necessary.

The rubber meets the road on reflectix s website where it says no air space no reflective insulation benefit. The r value of reflective insulation is measured within a system.