Fire resistant composite boards and methods

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9605433
SERIAL NO

13672746

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Importance

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
JOHNS MANVILLE717 SEVENTEENTH STREET DENVER CO 80202

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Paradis, Duane Highlands Ranch, US 24 267
Zheng, Guodong Highlands Ranch, US 40 209

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