Reflective Insulation R Value

The rubber meets the road on reflectix s website where it says no air space no reflective insulation benefit.

Reflective insulation r value.

Measuring the r value of reflective insulation vs. The purpose of the insulation is to help the hvac system run more efficiently by keeping the conditioned air at the proper temperature without leaking or being affected by the unconditioned air outside of the system making heat flow resistance a key measurement. 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. You can even place it under the foundation slab.

If two products have the same r value they have the same efficiency in stopping heat transfer. What about r values for a reflective insulation and why do they vary with application. Of owens corning fiberglass and r 5 per inch with foamular foam board. Rosato asbestos insulation is the most authoritative source on asbestos properties and gives data for the thermal conductivity of asbestos in different forms and with varying temperatures for magnesia asbestos insulation at mean temperatures ranging from 100 f to 400 f the k value thermal.

An r value is a measure of an insulation product s resistance to thermal heat transfer. Install it anywhere from the roof to the foundation. An r 1 1 is provided from the product itself for the reflective double bubble material. Select 2 to 4 items to compare.

Rigid foam insulation also known as insulating boards provide high r values. R values for reflective insulations are dependent. Insulating board rigid insulation is one of the best tools to reduce your energy costs. Air space equals r value.

Standard insulation is tested as a material with an r value per inch of thickness for example r 13 for 3 5 quot. It is the m easurement of a material s ability to stop heat transfer. Notes to the table above. The higher the r value the more resistant a material or building assemblage is to conductive heat transfer.

Any bubble insulation that is approximately thick can only achieve an average r value of 1 to 1 5 on its own. Most people are familiar with the term r value when discussing insulation properties. In reflective insulation the r value refers to a measure of the insulation s resistance to heat flow. Reflectix can provide verification for all r values stated for all products and applications.

Notes on the r value k values of different forms of asbestos. A simulated wall with 2x4 studs dry wall an air space and layer of reflectix. If you don t provide air space this product provides almost no insulating value. In contrast reflectix is always tested as part of an assembly e g.