Reflective Foil Bubble Insulation R Value

Double bubble insulation provides the maximum efficiency and highest r value for bubble insulation.

Reflective foil bubble insulation r value.

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 r value of reflective insulation is measured within a system. 1 4 5 16 nominal thickness of foil bubble insulation. Any bubble insulation that is approximately thick can only achieve an average r value of 1 to 1 5 on its own.

A simulated wall with 2x4 studs dry wall an air space and layer of reflectix. Double bubble insulation is the most effective bubble insulation with highest r value. The rubber meets the road on reflectix s website where it says no air space no reflective insulation benefit. Air space equals r value.

Reflective insulation and radiant barriers that are safe easy to install and thermodynamically efficient for new building construction. Heat moves by 3 methods. If you don t provide air space this product provides almost no insulating value. The r value of reflective insulation is not measured by the inch.

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. 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. Are two layers of polyethylene industrialized air bubbles bonded between exterior. Insulation s r value is a measurement how much resistance against conduction.

If you install 2 layers of a reflective insulation does the r value double. Green building advisor recently wrote an article about foil faced bubble wrap and did a balanced job of it. Key benefits of this foil faced double bubble include. In contrast reflectix is always tested as part of an assembly e g.

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

An r 1 1 is provided from the product itself for the reflective double bubble material. Standard insulation is tested as a material with an r value per inch of thickness for example r 13 for 3 5 quot. When i wrote about my trip to the southeast building conference in july i mentioned how some products on display there really annoyed me because they re either bad to the bone or overhyped.