Roof Valley Definition

If the nails are placed in the very center of the valley leakage will occur.

Roof valley definition.

Typically where a valley is located on a roof roof valley replacements are fairly common especially on tiled roofs. An elongated lowland between ranges of mountains hills or other uplands often having a river or stream running along the bottom. A valley roof leak is the most common type of roof leak. For an open valley a sheet of metal usually steel sometimes copper is fastened to the roof deck.

Roof valley synonyms roof valley pronunciation roof valley translation english dictionary definition of roof valley. The valley area of a roof the straight lines formed when two different planes of the roof meet is a critical area that handles a tremendous amount of water run off. These leaks can be caused by poor roofing practices or just simply by the age of the shingles on the roof. Roofing shingles are installed then cut and sealed where they overlap the metal channel.

This is because the old valleys used to be galvanised and they start corroding with time especially if they trap leaves. A rusty valley on a tile roof which needs to be replaced. A roofer must be careful where the nails are placed in the shingles of valley roofs.