open valley
Noun
Meaning
open valley (plural open valleys)
(roofing) a method of valley construction in which the steep-slope roofing on both sides are trimmed along each side of the valley, exposing the metal valley flashing.
Noun
open valley (plural open valleys)
(roofing) a method of valley construction in which the steep-slope roofing on both sides are trimmed along each side of the valley, exposing the metal valley flashing.