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Underlayment

(Wood underlayment materials for floors)

See also:
Wood Materials for general plywood and wood suppliers
Prefabricated Structural Wood - typically joists and ligher members



Homasote

Homasote Company  Specs  LEED
440 SoundBarrier®, listed in UL's L500 Series, is the proven, dry answer to meeting IBC Code for sound control in floors (STC and IIC) without introducing additional moisture. The 1/2", 4'x8' panels, with 98 percent post-consumer content, are controlling sound in millions of square feet. Independently sound tested, UL Listed, ICC-ES Report ESR-1374.