Reflective Foil Insulation R Value

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Reflective foil insulation r value.

An r value is a measure of an insulation product s resistance to thermal heat transfer. Double reflective insulation roll with staple tab edge model st16100 56 47 roll 56 47 roll free delivery. Therefore three inches of styrofoam will have an r value of over 11. R values depend on application.

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 an inner substance trapped airspaces. Thd sku 884247. The r values of reflective insulation and mass insulation are based on the same fundamental equation. Reflective insulation and radiant barriers that are safe easy to install and thermodynamically efficient for new building construction.

It s a measure of how long it takes a heat absorbing product to absorb 100 of its potential and begin to transfer that heat out the other side of the product. This is a reflective insulation the label reads. This is a great real life example of why we don t make coffee cups out of wood styrofoam keeps the heat in longer. The ability to stop heat transfer.

This might surprise you but radiant barrier foil on its own has no r value. The amount of air space in a closed cavity on the reflective side of the product in a building assemblage. Reflectix 4 ft. Class a class 1 fire rating.

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. Any bubble insulation that is approximately thick can only achieve an average r value of 1 to 1 5 on its own. From our modern facility with the highest production capacity in the industry you can expect quality reflective insulation and radiant barrier products and quick order fulfillment. Owens corning 109 ado products 54 johns manville 46 knauf insulation 40 intec 27 reach barrier 24.

The stated r value is only valid for the application specified when installed per the installation instructions on the label or at our website. R values for reflective insulations are dependent on two primary criteria. No mess no itchy fibers. Heat flow direction 2.

Most people are familiar with the term r value when discussing insulation properties. Each of reflectix s statements about r value on the label is valid but they must be accompanied by a reading of the finer print off to the side. Styrofoam or eps expanded polystyrene has an r value of 3 85 per inch.