Double Reflective Insulation R Value

An r 1 1 is provided from the product itself for the reflective double bubble material.

Double reflective insulation r value.

Thd sku 469837. The rubber meets the road on reflectix s website where it says no air space no reflective insulation benefit. Some products say r4 r6 or r8. All our reflective double bubble products.

Any bubble insulation that is approximately thick can only achieve an average r value of 1 to 1 5 on its own. Double reflective insulation r values range from r 3 7 to r 17. Reflective insulation is a system that reduces the transfer of heat across air space by the use of two surfaces having high thermal reflectance and low emittance typically metalized film. The r values of reflective insulation and mass insulation are based on the same fundamental equation.

If you don t provide air space this product provides almost no insulating value. R values depend on application. Our double bubble products are ideal for metal buildings where the control of condensation is necessary. Double bubble insulation is the most effective bubble insulation with highest r value.

The reflectix double reflective insulation is the most versatile widely distributed energy efficient product that we manufacture. Reflectix 4 ft. Air space equals r value. Double reflective insulation bp48100 48 x 100 400 sq.

Double reflective insulation bp48025 48 x 25 100 sq. Class a class 1 fire rating. Though exact prices will vary by store and region this price ratio is fairly consistent meaning you. 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.

If you install 2 layers of a reflective insulation does the r value double. 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 product. No mess no itchy fibers. A comparable roll of reflective insulation cost 43 cents per square foot at the same location.

Are two layers of polyethylene industrialized air bubbles bonded between exterior.