IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0285805
(2011-10-31)
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등록번호 |
US-8661741
(2014-03-04)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
4 인용 특허 :
38 |
초록
▼
A masonry flashing for use in a cavity wall is disclosed. The flashing has channels for draining water from the cavity while permitting entry of air into the cavity. The top surface of the flashing is covered by a protective member. The protective member is a scrim or, in the extruded form, an overa
A masonry flashing for use in a cavity wall is disclosed. The flashing has channels for draining water from the cavity while permitting entry of air into the cavity. The top surface of the flashing is covered by a protective member. The protective member is a scrim or, in the extruded form, an overarching portion of the flashing material. The protective member prevents the clogging of channels from mortar droppings and other construction debris. The flashing is shown with a drip edge is formed by extending the flashing beyond the external surface of the outer wythe and, with the edge being foil lined, manually forming the drip edge. A peel-and-stick embodiment described herein utilizes clear, nondrooling adhesives. Flashing accessories, namely, an end dam, an inside corner and an outside corner are also described.
대표청구항
▼
1. A flashing for a cavity wall, said cavity wall having an inner wythe and an outer wythe with a cavity therebetween, said cavity wall having an exterior surface on the side of said outer wythe opposite said cavity, said flashing comprising in combination: a sulcated polymeric membrane having an el
1. A flashing for a cavity wall, said cavity wall having an inner wythe and an outer wythe with a cavity therebetween, said cavity wall having an exterior surface on the side of said outer wythe opposite said cavity, said flashing comprising in combination: a sulcated polymeric membrane having an elongated body, two major surfaces and a longitudinal axis, said polymeric membrane selected from a group consisting of low density polyethylene, high density polyethylene, polyethylene teraphalate, polypropylene, styrene isoprene styrene, styrene ethylene butadiene styrene, styrene ethylene propylene, and admixtures thereof;a plurality of channels having continuous and uninterrupted channel walls in at least one of said major surfaces of said polymeric membrane, each of said plurality of channels transverse said longitudinal axis and extending edge to edge of said polymeric membrane providing a conduit for air and water vapor to flow into and out of said cavity and for fluids to flow out of said cavity;a protective member extending over at least a portion of each said plurality of channels precluding the blocking thereof by mortar droppings and construction debris, said protective member permitting water to flow into each of said plurality of channels;an adhesive layer disposed on one of said major surfaces of said membrane; and,a release sheet disposed on said adhesive layer, said release sheet being removable prior to mounting said masonry flashing in said cavity of said cavity wall. 2. A flashing as described in claim 1 wherein said protective member is a scrim disposed atop said plurality of channels. 3. A flashing as described in claim 1 wherein said adhesive layer is a hot melt adhesive, said hot melt adhesive is a clear pressure-activated adhesive with a melting point, when cured, greater than 180° F., comprising about 10 to 50 percent by weight of a thermoplastic elastomer; about 5.5 to 10 percent by weight selected from a group consisting of ethylene, propylene, styrene, and mixtures thereof; about 20 to 50 percent of a tackifier resin; 15 to 50 percent by weight of an amorphous diluent; and, 0 to 2 percent by weight of a stabilizer. 4. A flashing for a cavity wall, said cavity wall having an inner wythe and an outer wythe with a cavity therebetween, said cavity wall having an exterior surface on the side of said outer wythe opposite said cavity, said flashing comprising in combination: a sulcated flexible membrane having two major surfaces and a longitudinal axis, said sulcated flexible membrane comprising: a plurality of channels having continuous and uninterrupted channel walls in at least one of said major surfaces of said flexible membrane, each of said plurality of channels transverse said longitudinal axis and coextensive with said flexible membrane, and extending continuously from said cavity to said exterior surface providing a conduit for air to flow into and out of said cavity and for water to flow out of said cavity;a hot melt adhesive layer disposed on one of said major surfaces of said flexible membrane, said hot melt adhesive comprising about 10 to 50 percent by weight of a thermoplastic elastomer; about 5.5 to 10 percent by weight selected from a group consisting of ethylene, propylene, styrene, and mixtures thereof; about 20 to 50 percent of a tackifier resin; 15 to 50 percent by weight of an amorphous diluent; and, 0 to 2 percent by weight of a stabilizer;a protective member extending over at least a portion of each said plurality of channels precluding the blocking thereof by mortar droppings and construction debris, said protective member permitting water to flow into each of said plurality of channels; and,a release sheet disposed on said adhesive layer, said release sheet being removable prior to mounting said flashing in said cavity of said cavity wall. 5. A flashing as described in claim 4 wherein said sulcated flexible membrane is selected from a group consisting of low density polyethylene, high density polyethylene, polyethylene teraphalate, polypropylene, styrene isoprene styrene, styrene ethylene butadiene styrene, styrene ethylene propylene, and admixtures thereof. 6. A flashing as described in claim 5 wherein said tackifier resin is selected from a group consisting of hydrogenated wood rosin, rosin ester, polyterpene resins, and aliphatic petroleum hydrocarbon resins. 7. A flashing as described in claim 6 wherein said protective member is a scrim disposed atop said plurality of channels.
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