IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0916565
(2010-10-31)
|
등록번호 |
US8065852
(2011-11-16)
|
발명자
/ 주소 |
- Tonyan, Timothy D.
- Ullett, James M.
- Reicherts, James E.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
61 |
초록
▼
A roofing system including horizontal or sloped metal framing members, for example, C-joists, U-joists, open web joists, or other metal frame systems that support a reinforced, lightweight, dimensionally stable SCP panel. The roofing system is non-combustible, water durable, mold and rot resistant,
A roofing system including horizontal or sloped metal framing members, for example, C-joists, U-joists, open web joists, or other metal frame systems that support a reinforced, lightweight, dimensionally stable SCP panel. The roofing system is non-combustible, water durable, mold and rot resistant, termite resistant and is capable of resisting shear loads equal to or exceeding shear loads provided by plywood or oriented strand board panels. The panels employ one or more layers of a continuous phase resulting from the curing of an aqueous mixture of inorganic binder, for example, calcium sulfate alpha hemihydrate, hydraulic cement, an active pozzolan and lime. The continuous phase is reinforced with glass fibers and contains lightweight filler particles, for example, ceramic microspheres.
대표청구항
▼
What is claimed is: 1. A method for providing a building structure with a roofing system by making the roofing system as a roof of the building structure, said roofing system comprising:a sloped or flat shear diaphragm supported on light gauge cold rolled metal framing of the building structure,the
What is claimed is: 1. A method for providing a building structure with a roofing system by making the roofing system as a roof of the building structure, said roofing system comprising:a sloped or flat shear diaphragm supported on light gauge cold rolled metal framing of the building structure,the shear diaphragm comprising a reinforced, lightweight, dimensionally stable cementitious panel and the framing comprising metal roofing elements;the cementitious panel having a density of 65 to 90 pounds per cubic foot and capable of resisting shear loads when fastened to the framing and comprising a continuous phase resulting from the curing of an aqueous mixture comprising, on a dry basis,49 to 68 weight % blend of reactive powders,23 to 36.1 weight % uniformly distributed lightweight filler particles, and5 to 20 weight % alkali-resistant glass fibers, andoptional superplasticizer,the continuous phase being uniformly reinforced with the alkali-resistant glass fibers, andthe lightweight filler particles comprising uniformly distributed ceramic microspheres, the lightweight filler particles having a particle specific gravity of from 0.02 to 1.00 and an average particle size of about 10 to 500 microns (micrometers),wherein the blend of reactive powders comprises:45 to 75 wt. % calcium sulfate alpha hemihydrate,20 to 40 wt. % Portland cement,0.2 to 3.5 wt. % lime, and5 to 25 wt. % of an active pozzolan comprising silica fume; andsaid making of the roofing system comprising:placing the cementitious panel on said metal roofing elements andattaching the cementitious panel to the metal roofing elements,wherein the system has a horizontal design shear capacity of the roof shear diaphragm of 300 to 1000 pounds per linear foot;wherein the cementitious panels are attached to the metal roofing elements with metal screws with winged drillers, the winged drillers are located above the point and below the first threads of the screw and protruding laterally from a shaft of the screw.
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