What is a radiant barrier?

A radiant barrier is a product that features a low emittance surface(s) (normally aluminum foil) that is designed to significantly reduce heat transfer between a very hot and high radiating surface (bottom of a roof deck) and a cooler highly absorbent surface (i.e. insulation on top of a ceiling). Multiple low emittance surfaces, even multiple layers with enclosed air spaces, can further reduce radiant heat transfer. Effective emittance is one term that can quantify the impact of the impact of the additional surfaces. In summary, the lower the emittance (radiation rate), the better the performance. Radiant barriers have been demonstrated to achieve significant energy savings in a wide variety of building types and in multiple climate zones.

 

Product Reference: 

Silver Shield
FSK Shield
Radiant Shield

Professionals Reference: 

Builder
Insulation Contractor
Rater
Building Owner
Distributor
Remodeler
Engineer
Homeowner
Architect

Building Type Reference: 

Masonry
Metal
Wood Framed

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