Counterflashing

Counterflashing

Waterproof material, such as sheet metal, installed on the face of a wall that overlaps and seals the top of the vertical flashing below.

counterflashing, cover flashing, cap flashing

counterflashing
A strip of sheet metal, often built into masonry and turned down over other flashing; used to prevent water from entering the joints and the exposed upturned edges of base flashing on a roof.
References in periodicals archive ?
In exposed flashing conditions without counterflashing, ensure the top termination is properly sealed and the termination bar is securely anchored to the substrate.
FIGURE 1 The Big Picture Disposal of old roof assembly $45,000 Labor $24,300 Insulation for new roof $29,100 New roof membrane material $15,300 Metal for new perimeter counterflashing $ 3,600 Contractor overhead and mark-up $36,500 Replacement of damaged carpeting $25,000 Installation of new ceiling tiles $ 4,200
Also included are flashings, copings, roof edges, counterflashings, gutters, downspouts and roof accessories.