Reflective Foil Bubble Insulation R Value

Convection mass air transport conduction by touch radiation.

Reflective foil bubble insulation r value.

The r value of reflective insulation is measured within a system. In contrast reflectix is always tested as part of an assembly e g. Green building advisor recently wrote an article about foil faced bubble wrap and did a balanced job of it. 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.

Any bubble insulation that is approximately thick can only achieve an average r value of 1 to 1 5 on its own. Reflective insulation and radiant barriers that are safe easy to install and thermodynamically efficient for new building construction. Of owens corning fiberglass and r 5 per inch with foamular foam board. 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. Key benefits of this foil faced double bubble include. Our double bubble products are ideal for metal buildings where the control of condensation is necessary. The main one in the latter category is foil faced bubble wrap sold as insulation.

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. Double bubble insulation provides the maximum efficiency and highest r value for bubble insulation. 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. Double bubble insulation is the most effective bubble insulation with highest r value.

Air space equals r value. Heat moves by 3 methods. With multiple layers of product and airspaces between each layer enhanced performance will be gained. Insulation s r value is a measurement how much resistance against conduction.

If you don t provide air space this product provides almost no insulating value. Are two layers of polyethylene industrialized air bubbles bonded between exterior. 1 4 5 16 nominal thickness of foil bubble insulation. All our reflective double bubble products.

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. A simulated wall with 2x4 studs dry wall an air space and layer of reflectix. The r value of reflective insulation is not measured by the inch.