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.
Double reflective insulation r value.
Double bubble insulation is the most effective bubble insulation with highest r value.
The ability to stop heat transfer.
Reflectix 4 ft.
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.
Air space equals r value.
Class a class 1 fire rating.
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.
Double reflective insulation bp48100 48 x 100 400 sq.
If you install 2 layers of a reflective insulation does the r value double.
Our double bubble products are ideal for metal buildings where the control of condensation is necessary.
All our reflective double bubble products.
Thd sku 469837.
The reflectix double reflective insulation is the most versatile widely distributed energy efficient product that we manufacture.
Though exact prices will vary by store and region this price ratio is fairly consistent meaning you.
Double reflective insulation r values range from r 3 7 to r 17.
A comparable roll of reflective insulation cost 43 cents per square foot at the same location.
No mess no itchy fibers.
Any bubble insulation that is approximately thick can only achieve an average r value of 1 to 1 5 on its own.
The rubber meets the road on reflectix s website where it says no air space no reflective insulation benefit.
With multiple layers of product and airspaces between each layer enhanced performance will be gained.
R values depend on application.
Are two layers of polyethylene industrialized air bubbles bonded between exterior.
An r 1 1 is provided from the product itself for the reflective double bubble material.
Double reflective insulation bp48025 48 x 25 100 sq.