FIRE RESISTANT COMPOSITE BOARDS AND METHODS

Embodiments of the invention provide roofing boards and roofing systems having improved fire resistance properties and methods related to the same. According to one aspect, a roofing system is provided. The roofing system includes roofing panels positioned atop structural support members to form a r...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PARADIS DUANE, ZHENG GUODONG
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Embodiments of the invention provide roofing boards and roofing systems having improved fire resistance properties and methods related to the same. According to one aspect, a roofing system is provided. The roofing system includes roofing panels positioned atop structural support members to form a roof deck. Roofing boards are positioned atop the roof deck and coupled thereto and a roofing membrane is positioned atop the roofing boards and coupled therewith. The roofing boards include a coating of a mineral based material applied to one or more surfaces in an amount between the range of about 0.10 lbs/ft2 and about 0.70 lbs/ft2. The mineral based material coating enables the roofing boards to pass the UL 790 class A tests, such as the burning brand test.