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公开(公告)号：US20190077700A1
公开(公告)日：2019-03-14
申请号：US15988974
申请日：2018-05-24
Applicant: UNITED STATES GYPSUM COMPANY
Inventor： Wei XU , Derrick HUTCHINSON , Christopher J. ROKKE , Lori TUTTLE , Michael J. HOUGH
Abstract: Composite roofing structures can include mineral fiber roof cover boards with high concentration of mineral wool or mineral wool and perlite. The roofing structure may include: a roof cover board including a dried base mat including: 8-25% mineral wool, 40-65% perlite, 9-15% binder, 9-15% cellulosic fiber, and 0.25-2% sizing agent, all % by weight; an insulation layer; and a roofing membrane. The roof cover board is over the insulation layer, the roofing membrane is over the roof cover board. The roof cover board is attached to the insulation layer. The roofing membrane is attached to the roof cover board. Alternatively dried base mat may include: 30-70% mineral wool, 10-50% perlite, 5-15% binder, 2-20% cellulosic fiber, and 0.25-2% sizing agent. Alternatively the dried base mat may include: 60-90% mineral wool, 0-10% fiber, 0-10% perlite, 4-10% binder, 0-5% gypsum, and 0.25-2% sizing agent.
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公开(公告)号：US20240419931A1
公开(公告)日：2024-12-19
申请号：US18643391
申请日：2024-04-23
Applicant: United States Gypsum Company
Inventor： Ajith M. RAO , Suman SINHA RAY , Derrick HUTCHINSON
Abstract: Embodiments of a system and a method for detecting moisture within a structure can use a cementitious panel including a moisture sensor. The moisture sensor can comprise a moisture-sensing, passive RFID tag. A reader can be used to periodically interrogate the RFID moisture-sensing tag to determine whether the RFID moisture-sensing tag has been subjected to moisture. Systems and methods for detecting moisture within a structure can use at least one such cementitious panel in a structural assembly, such as a roof assembly, for example, to help detect a leak in the roof assembly through periodic monitoring of the installed cementitious panel(s).
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