Insulation board
OwnerDennis W. Rosato, Neil K. Listerinventors
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Abstract
An insulation board comprising a plastic foam layer which is covered by at least one facing sheet, the facing sheet comprising glass fibers bonded to each other by a bonding agent, the fibers and bonding agent being coated with a non-wicking agent, whereby although the fibrous facing sheet is porous to permit venting of gases and vapors, it is substantially liquid-repellant to prevent bleed through by various types of liquids.
Claims6
An insulation board comprising a plastic foam layer bonded to at least one facing sheet, said facing sheet comprising glass fibers which are randomly dispersed in uniform fashion throughout the sheet, said fibers being bonded together by a bonding agent, and said fibers and bonding agent being coated by a non-wicking agent to provide a porous but liquid-repellant structure.
Dependencies are inferred from the claim text.