In a closed-cut valley, what is true about the valley flashing?

• A. The valley flashing is exposed.
• B. Shingles from both sides extend across the valley.
• C. One side is trimmed 2 inches from centerline.
• D. The valley flashing is not exposed.

Answer: (D)

In a closed-cut valley, the valley flashing is hidden under the roofing shingles. The shingles are arranged so that one side’s shingles extend into the valley and cover the flashing, while the other side is cut back toward the centerline, leaving no visible metal in the valley. That’s why the valley flashing isn’t exposed. If the flashing were exposed, you’d have an open valley, and describing both sides extending across the valley would imply a visible flashing or a different setup. The exact amount one side is trimmed isn’t the defining feature; it’s the fact that the flashing stays concealed beneath the shingles.