Reflective Foil Bubble Insulation R Value

The r value of reflective insulation is measured within a system.

Reflective foil bubble insulation r 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. Air space equals 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 rubber meets the road on reflectix s website where it says no air space no reflective insulation benefit.

Any bubble insulation that is approximately thick can only achieve an average r value of 1 to 1 5 on its own. Insulation s r value is a measurement how much resistance against conduction. Our double bubble products are ideal for metal buildings where the control of condensation is necessary. Are two layers of polyethylene industrialized air bubbles bonded between exterior.

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. Reflective insulation and radiant barriers that are safe easy to install and thermodynamically efficient for new building construction. All our reflective double bubble products.

An r 1 1 is provided from the product itself for the reflective double bubble material. Convection mass air transport conduction by touch radiation. With multiple layers of product and airspaces between each layer enhanced performance will be gained. If you install 2 layers of a reflective insulation does the r value double.

The main one in the latter category is foil faced bubble wrap sold as insulation. Double bubble insulation provides the maximum efficiency and highest r value for bubble insulation. Key benefits of this foil faced double bubble include. Standard insulation is tested as a material with an r value per inch of thickness for example r 13 for 3 5 quot.

Of owens corning fiberglass and r 5 per inch with foamular foam board. If you don t provide air space this product provides almost no insulating value. Heat moves by 3 methods. Double bubble insulation is the most effective bubble insulation with highest r value.

1 4 5 16 nominal thickness of foil 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. Green building advisor recently wrote an article about foil faced bubble wrap and did a balanced job of it.