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 .