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A mortar and debris collection device for use within a cavity wall to prevent the blockage of weep holes at the base of the wall. The cavity wall assembly includes a masonry wall, an adjacent inner wall, a wall cavity therebetween, and a free-standing elongate strip of openwork material located with

A mortar and debris collection device for use within a cavity wall to prevent the blockage of weep holes at the base of the wall. The cavity wall assembly includes a masonry wall, an adjacent inner wall, a wall cavity therebetween, and a free-standing elongate strip of openwork material located within the cavity forming a debris collection surface a spaced distance above a base surface of the cavity. Preferably, the openwork material is inserted and positioned within the cavity after the inner wall and only a base portion of the outer masonry wall is constructed. Thereafter, the upper portion of the outer masonry wall is constructed and any mortar or debris falling into the cavity is caught and supported on the debris collection surface.

대표청구항 ▼

The invention claimed is: 1. A method of assembling a masonry cavity wall, comprising the steps of: providing a masonry cavity wall assembly, comprising an exterior masonry wall adjacent an inner wall defining a wall cavity of a predetermined length therebetween above a base surface; and a free sta

The invention claimed is: 1. A method of assembling a masonry cavity wall, comprising the steps of: providing a masonry cavity wall assembly, comprising an exterior masonry wall adjacent an inner wall defining a wall cavity of a predetermined length therebetween above a base surface; and a free standing, elongate, continuous strip of material having a longitudinal axis and being of a length equal to said predetermined length of said cavity supported on said base surface within said wall cavity forming a debris collection a spaced distance above said base surface for supporting thereon excess mortar and debris falling within said wall cavity; said strip of material being a flat strip of material having been flexed along a longitudinally-extending central section of said strip into a substantially “U” shaped in cross-section perpendicular to said longitudinal axis along its full length and being made of an openwork material that permits moisture to drain therethrough and prevents mortar from passing therethrough; said inverted “U” shaped strip of material having a spaced-apart pair of longitudinally-extending, substantially-upright legs interconnected only by said longitudinally-extending central section extending from upper ends of said legs, one of said legs engaging said masonry wall and an opposite one of said legs engaging said inner wall, and said central section extending therebetween and forming said debris collection surface, said elongate inverted “U” shape strip of material being continuously hollow within the confines of said inverted “U” shaped along the full length of said strip and cavity; and said upright legs extending parallel to each other and parallel to said exterior masonry wall and said inner wall enabling said inverted “U” shaped strip of material to be compressible so that it can be positioned within said wall cavity in a compressed condition and expandable so that said upright legs can expand into engagement with said inner and masonry wall; assembling a base section of the masonry wall adjacent the inner wall such that the wall cavity is defined therebetween; inserting the elongate strip of material within the wall cavity after said base section assembling step so that the strip of material is supported in a free-standing condition on the base surface within the wall cavity and forms the debris collection surface a spaced distance above the base surface of the wall cavity; and after said inserting step, completing assembly of an upper section of the masonry wall such that any excess mortar falling into the wall cavity falls on, and is supported by, the debris collection surface. 2. A method according to claim 1, wherein the elongate strip of material has opposite longitudinally-extending side sections, and wherein said inserting step includes positioning one of said side sections in an upright position extending parallel to and in engagement with the inner wall, positioning the other of said side sections in an upright position extending parallel to and in engagement with the masonry wall, and permitting the central section to extend between upper ends of said side sections to form the debris collection surface. 3. A method according to claim 2, wherein said inserting step includes flexing the strip of material along the longitudinally-extending central section so that the strip of material fits within the wall cavity and thereafter, permitting the strip of material to resiliently flex into engagement with the inner and masonry walls. 4. A method according to claim 3, wherein, during said inserting step, said inverted “U”-shaped strip of material is compressed so that said strip of material fits within the wall cavity, and thereafter, expands into engagement with the inner and masonry walls. 5. A method according to claim 4, wherein said inserting step includes placing a longitudinally-extending free edge of each of the side sections into engagement with the base surface of the wall cavity. 6. A method according to claim 5, wherein the openwork material consists of a single layer of a single material selected from a group consisting of a perforated sheet of metal, a perforated polymer sheet, a sheet of porous foam, and a mat of fibers. 7. A masonry cavity wall assembly, comprising: an exterior masonry wall adjacent an inner wall defining a wall cavity of a predetermined length therebetween above a base surface; and a free-standing, elongate, continuous strip of material having a longitudinal axis and being of a length equal to said predetermined length of said cavity supported on said base surface within said wall cavity forming a debris collection surface a spaced distance above said base surface for supporting thereon excess mortar and debris falling within said wall cavity; said strip of material being a flat strip of material having been flexed along a longitudinally-extending central section of said strip into a substantially inverted “U” shape in cross-section perpendicular to said longitudinal axis along its full length and being made of an openwork material that permits moisture to drain therethrough and prevents mortar from passing therethrough; said inverted “U” shaped strip of material having a spaced-apart pair of longitudinally-extending, substantially-upright legs interconnected only by said longitudinally-extending central section extending from upper ends of said legs, one of said legs engaging said masonry wall and an opposite one of said legs engaging said inner wall, and said central section extending therebetween and forming said debris collection surface, said elongate inverted shape strip of material being continuously hollow within the confines of said inverted “U” shape along the full length of said strip and cavity; and said upright legs extending parallel to each other and parallel to said exterior masonry wall and said inner wall enabling said inverted “U” shaped strip of material to be compressible so that it can be positioned within said wall cavity in a compressed condition and expandable so that said upright legs can expand into engagement with said inner and masonry walls. 8. A masonry cavity wall assembly according to claim 7, wherein said strip of openwork material is selected from a group consisting of a perforated sheet of metal, a perforated sheet of polymer, and a porous foam material. 9. A masonry cavity wall assembly according to claim 7, wherein said strip of material is selected from a group consisting of a porous closed cell composite and a mat of fibers. 10. A masonry cavity wall assembly according to claim 7, wherein said strip of openwork material consists of a single layer of a single material.