Patent ID: 7810292
Filing Date: 2010-10-12
Classification: E04B

Abstract:
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.