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Reflective Insulation

 

Reflective insulation systems are fabricated from aluminum foils with a variety of backings, such as kraft paper, plastic film, polyethylene bubbles, or cardboard. The resistance to heat flow depends on the heat flow direction. Reflective insulation is most effective at reducing downward heat flow.

Reflective insulation systems are typically located between roof rafters, floor joists, or wall studs. If a single reflective surface is used alone and faces an open space, such as an attic, it is called a radiant barrier.

 
Installation

Installing reflective insulation is similar to placing batts and blankets. Often, reflective insulation materials have flanges that are to be stapled to wall studs or to joists in attics or floors.

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