Roof Valley Definition

Roof valley synonyms roof valley pronunciation roof valley translation english dictionary definition of roof valley.

Roof valley definition. A valley roof leak is the most common type of roof leak. A rusty valley on a tile roof which needs to be replaced. The metal is usually pre painted to best complement the shingles color blend. Definition of a roof valley the greatest portion of a roof is a flat expanse that is covered with a non permeable material such as asphalt shingles metal tiles or slate tiles to protect the roof structure and the interior of the building.

If the nails are placed in the very center of the valley leakage will occur. For an open valley a sheet of metal usually steel sometimes copper is fastened to the roof deck. A roofer must be careful where the nails are placed in the shingles of valley roofs. These leaks can be caused by poor roofing practices or just simply by the age of the shingles on the roof.

An elongated lowland between ranges of mountains hills or other uplands often having a river or stream running along the bottom. Roofing shingles are installed then cut and sealed where they overlap the metal channel. Typically where a valley is located on a roof roof valley replacements are fairly common especially on tiled roofs.