IVEY 10′ 3″ BLACK ROOF VALLEY

Often called u201cW-valleyu201d because itu2019s preformed like a u201cWu201d.  While the appearance of where the roof decks meet to create the valley is a u201cVu201d, you want a u201cWu201d flashing instead because the middle hump stops water flowing down each side from shooting up under the shingles on the opposite side.