What is the term for the junction of a vertical member (such as a skylight or parapet) with a horizontal member (the roof) that helps keep water out of the vertical member?

What is the term for the junction of a vertical member (such as a skylight or parapet) with a horizontal member (the roof) that helps keep water out of the vertical member?

• A. Curb
• B. Flashing
• C. Cricket
• D. Gable

Answer: (C)

Water control at the junction where a vertical element meets the roof is provided by flashing. Flashing is the metal sheet or waterproof membrane that wraps around the edge and rises up the vertical member to seal the joint and direct water onto the roof, not into the vertical member. In skylight or parapet assemblies, you’ll often see a curb—the vertical box that the skylight sits on—paired with flashing at the joint to keep water out. The other terms describe different things: a cricket is a saddle-shaped projection to divert water around an obstruction, and a gable is the triangular end wall of a pitched roof. Flashing is the component that actually prevents water intrusion at that vertical-horizontal junction.

Water control at the junction where a vertical element meets the roof is provided by flashing. Flashing is the metal sheet or waterproof membrane that wraps around the edge and rises up the vertical member to seal the joint and direct water onto the roof, not into the vertical member. In skylight or parapet assemblies, you’ll often see a curb—the vertical box that the skylight sits on—paired with flashing at the joint to keep water out. The other terms describe different things: a cricket is a saddle-shaped projection to divert water around an obstruction, and a gable is the triangular end wall of a pitched roof. Flashing is the component that actually prevents water intrusion at that vertical-horizontal junction.