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Through-roof-fittings

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Through-roof fittings

Details

Inventors: Cline, Roger M.;
Assignee: Cline; Roger M. (Bluemont, VA)
Primary Examiner: Arola; Dave W.
Assistant Examiner:
Attorney, Agent or Firm: Wray; James Creighton

A through-roof fitting seals a stack with a boot and seals the boot with a gasket around an opening in a sheet roofing created to receive the stack or pipe. An elliptical opening is cut in the roofing sheet. A base plate is placed below the sheet with a central raised portion of the plate extending through the opening cut in the roofing sheet. A flange on the base plate extends outwardly beneath the roofing sheet around the opening. A clamping plate is embedded in a combined boot and gasket so that the gasket extends over the roofing sheet around the opening when an elliptical step in the clamping plate is aligned with the projecting central portion of the base plate. The boot has successively inwardly stepped elliptical portions which terminate in a sloped top with a central opening for receiving and tightly engaging and sealing the pipe or stack. The embedded clamping plate has fastener openings which align with fastener receivers in the base plate. Bosses surrounding the openings extend through the boot to abut heads of elongated fastener bolts which thread into nuts which are pressfit into the fastener receivers in the flange plate. Tightening the fasteners compresses the gasket, sealing the opening in the roofing sheet.

DETAILED DESCRIPTION This invention provides new through-roof fitting seals for sealing around stacks and pipes of roofs, particularly of sheet material roofs and of standing seam metal roofs.
The fittings have generally elliptical or oval shapes, as racetracks with semicircular ends joined by straight midsections.
The new through-roof fitting seals a stack with a boot and seals the boot with a gasket around an opening in a sheet roof created to receive the stack or pipe.
An elliptical opening is cut in the roofing sheet.
A base flange plate is placed below the sheet, with a central raised portion of the plate extending through the opening cut in the roofing sheet.
A flange on the flange plate extends outwardly beneath the roofing sheet around the opening.
An elliptical clamping plate is embedded in a combined elliptical boot and gasket.
The gasket extends over the roofing sheet around the opening when the gasket or an elliptical step in the clamping plate is aligned with the projecting central portion of the flange plate.
The boot has successively inwardly stepped elliptical portions which terminate in a sloped top with a central opening for receiving and tightly engaging and sealing the pipe or stack.
The embedded clamping plate has fastener openings which align with fastener receivers in the flange plate.
Bosses surrounding the openings extend through the boot to abut heads of elongated fastener bolts which thread into nuts which are pressfit into the fastener receivers in the flange plate.
Tightening the fasteners compresses the gasket, sealing the opening in the roofing sheet.
A preferred through-roof fitting surrounds and seals a pipe or stack where it extends through a roofing sheet.
A flange plate has a generally oval laterally extended flange base and a generally oval body extending upward from the flange base for extending the body through a complementary general oval opening in a roof.
The flange is positioned under the roof around the opening.
First fasteners are secured in the body and are accessible generally perpendicular to the flange

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