Coated scrim reinforced roofing membrane

A scrim reinforced roofing membrane containing a coated scrim layer, a first membrane layer on the first side of the coated scrim layer, and a second membrane layer on the second side of the coated scrim layer. The coated scrim is fully embedded and encapsulated in the membrane layers. The coated sc...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Goff, Dennis A, Michaels, Emily W, Martin, David W, Hoenshel, Gary Lee
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A scrim reinforced roofing membrane containing a coated scrim layer, a first membrane layer on the first side of the coated scrim layer, and a second membrane layer on the second side of the coated scrim layer. The coated scrim is fully embedded and encapsulated in the membrane layers. The coated scrim layer contains a scrim fabric which contains a plurality of warp yarns in a first direction and a plurality of weft yarns in a second direction approximately perpendicular to the first direction, where the warp yarns cross the weft yarns at crossing points. The coated scrim also contains a coating which contains polyvinyl acetate and second polymer where the second polymer is fluorocarbon-free. The coating contains less than about 0.01% wt. fluorine and is located along the length of the warp and weft yarns and is located between the warp and weft yarns at the crossing points.