a metal - foil - containing flashing laminate is disclosed which laminate is for flashing cavity walls . the laminate has at least one layer of an elastomeric composite over which is placed a hot melt adhesive layer , a metal foil lamina , and another hot melt adhesive layer . in this embodiment the metal foil is encapsulated by the adhesive layers . in application this laminate used with a release paper forms a peel - and - stick product and is suitable for surface mounting . also to the basic laminate an additional elastomeric composite layer is placed above the metal foil lamina sandwiching the foil and forming a through - wall mountable product . a termination bar for use with surface mounted flashing with a polymeric foam coating is also disclosed . the peel - and - stick flashing may be lap - mounted at the seams between adjacent strips without caulks or sealants .