Pitch pocket and method of forming same

Details Pitch pocket and method of forming same Pitch pocket and method of forming same

1989-12-15

1990-06-19

Scherbel, David A.

Static structures (e.g., buildings)

Flue connection to building structure

52199, 52741, 285 42, E04D 1314

Patent

active

049341170

ABSTRACT:
A pitch pocket construction and method of forming the same for sealing the junction between an element projecting upwardly from a roof and through an opening in a waterproof membrane covering the roof. A plastic ring of PVC is placed on the membrane surrounding the projecting member and a strip of uncured EPDM rubber flashing is secured to the outside surface of the ring and over the top edge thereof and forms an annular flange over the membrane surrounding the outside of the ring by an adhesive applied to these areas after placement of the ring on the membrane. The inside surface of the ring, the exterior surface of the projecting member, and the intervening membrane within the ring, then are coated with an adhesive. A reactive pourable waterproof sealant fills the area within the ring and is bonded by the adhesive to the inside surface of the ring, to the exterior surface of the projecting member, and to the intervening membrane to form a waterproof seal between the membrane and projecting member extending therethrough, and in combination with the rubber flashing securely fastens the ring to the membrane.

REFERENCES:
patent: 2985465 (1961-05-01), Church
patent: 3838544 (1974-10-01), Hindall
patent: 3945163 (1976-03-01), Nagler et al.
patent: 4010578 (1977-03-01), Logsdon
patent: 4635409 (1987-01-01), Vandemore
patent: 4664390 (1987-05-01), Houseman
patent: 4730421 (1988-03-01), Leeland
Carlisle Sure-Seal Pourable Sealer Pocket Installation Procedures.

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