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Henry 604 – 25# Fiberglass Base Sheet is a heavy duty asphalt coated sheet with a heavyweight, non-woven fiberglass mat, suitable for use in fire retardant membrane assemblies, built-up roofing systems, ply sheets, and base sheets. It has a coating layer of asphalt on each side that reacts with Henry Cold Application Cement solvents to provide excellent adhesion without decreased tensile strength.
Features
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Has lay lines appropriate for normal roofing side laps
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Prevents sticking in the roll with sand lightly sprinkled on sheet surface
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Provides coated base and ply sheet for BUR
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3 square roll
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ASTM D4601 Type II
May be applied with the following Henry cold application asphalt cement solutions:
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United States
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