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BUR Roofing Systems

Ventsulation Felt

Ventsulation Felt is a specially constructed, heavy-duty, asphalt-coated fiber glass venting base sheet for use in hot applied built-up and modified bitumen roofing systems. It is composed of a Johns Manville fiber glass mat with a quality coating asphalt and a coarse mineral surfacing on one side. The mineral surfacing has a 1" (25 mm) grid waffle pattern embossed into it, which promotes underside venting.

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