US 6,584,746 B1 · Masonry flashing system

Abstract

A masonry flashing system is disclosed which includes a laminate for flashing cavity walls and a hot melt adhesive composition for coating the surface of the laminate. The adhesive is selected for compatibility with a peel-and-stick installation and, thus, upon pressure activation, when the laminate with hot melt adhesive thereon is pressed against the rough surface of the masonry block, a durable bond is created. The laminate is a polymeric substate formed in part from a mixture of polyvinyl chloride and ethylene acetate carbon monoxide terpolymer and is reinforced by an embedded fibrous mat—either woven or non-woven. The system also includes a stainless steel drip plate with a hot melt adhesive coating. The drip plate adhesive coating enables the installer to accurately position the plate during construction and maintain the alignment thereof. Optionally, a foam layer is placed on the lower surface of the drip plate so as to improve the sealing of the drip plate to the brick veneer.

Claims15

Dependent claims

A peel-and-stick laminate for flashing of a masonry cavity wall with masonry block components said peel-and-stick laminate comprising:

a first elastomeric sheet having two major surfaces;
a fibrous reinforcing mat mounted on one surface of said first elastomeric sheet;
a second elastomeric sheet mounted to laminate said fibrous reinforcing mat between said first and said second elastomeric sheet;
a hot melt adhesive layer on said first elastomeric sheet mounted on the surface opposite said fibrous reinforcing, said hot melt adhesive adapted by having sufficient tack to durably adhere to the surface of said masonry block;
and,
a release sheet adhered to said hot melt adhesive layer, said release sheet being removable prior to mounting said peel-and-stick laminate.

3 more elements

A masonry flashing system for flashing of a masonry cavity wall with an inner wythe of masonry block and an outer wythe of brick with weep holes therethrough, said inner wythe and said outer wythe having a cavity therebetween, said masonry flashing system comprising, in combination:

an elastomeric laminate having a reinforced body with two major surfaces;
a first hot melt adhesive layer on said elastomeric laminate, said hot melt adhesive adapted by having sufficient tack to durably adhere upon pressure activation to the surface of said masonry block;
a first release sheet adhered to said first hot melt adhesive layer, said first release sheet being removable prior to mounting said elastomeric laminate;
and,
a drip plate dimensioned for deposition on said brick and to extend from said cavity and beyond the outer surface thereof.

2 more elements

Dependencies are inferred from the claim text.

Masonry flashing system

Life of this patent

Masonry flashing system

Life of this patent

Abstract

Claims15