The Power-Save Sky Cool Radiant Barrier
Radiant barriers are
installed in homes—most commonly in attics—to reduce summer heat gain
and winter heat loss, which helps lower heating and cooling costs. The
barriers consist of a highly reflective material that reflects radiant
heat rather than absorbing it.
How Radiant Barriers Work
Heat travels from a warm area to a cool area by a
combination of conduction, convection, and radiation. Heat flows by
conduction from a hotter material to a colder material when the two
materials touch. Heat transfer by convection occurs when a liquid or
gas is heated, becomes less dense, and rises. Radiant heat travels in a
straight line away from the hot surface and heats anything solid as the
wave of energy hits it.
When the sun heats a roof, it's primarily the sun's
radiant energy that makes the roof hot. A large portion of this heat
travels by conduction through the roofing materials to the attic side
of the roof. The hot roof material then radiates its gained heat energy
into the cooler attic (some of the roof's heat will radiate in other
directions too). A radiant barrier reduces the radiant heat transfer
from the roof to the attic space.
The Power-Save Sky Cool Radiant
Barrier
• Fiberglass re-inforced (perforated)
aluminum foil insulation
• Fire retardant
• Reflects 95% of radiation heat
• Perforated aluminum foil radiant barrier toeliminating sweating
• Use for attics, roof and walls
• Easily stapled into place in attic on ceiling joists or rafters,
sealed with aluminum tape.
• Adhesion Good on clean and dry surface
• No Discoloration Resistance Excellent resistance to water, water
vapor, oxidation and weathering.
per roll (400 sf)
