Roofing Terms 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.

Roofing terms valley.

Woven closed cut and open. Water flows to the valleys of your roof the same way. A method of valley construction in which shingles or roofing from both sides of the valley extend across the valley and are woven together by overlapping alternate courses as they are applied. For this reason roof valleys are one of the first places where water will penetrate in a failing roof.

Roofing terms you should know. Your choice of valley installation method is critical because when improperly installed valleys are risks for serious leaks. The internal angle formed by the intersection of two sloping roof planes to provide water runoff. Seal down a factory applied asphalt strip used to bond a shingle to the one above.

Valleys are typically found where gable dormer roofs meet the main roof or when a house has angled wings or additions where two roof sections in different planes meet. Familiarizing yourself with this list of roofing terms may help you communicate a little better with your. The following is a comprehensive list of roofing terms posted for your knowledge and benefit. Open valley valley in which metal is used and roofing material does not cover entire valley area as in a closed valley.

A roof valley is formed where two roof slopes meet. Your roofing contractor will probably recommend installing special underlayment and flashing materials that you won t see on other parts of the roof. Trim that goes on this area is called valley trim. This is used to provide wind resistance.

Saturant asphalt used to impregnate felt for waterproofing and strength. Essentially there are three main ways to shingle a roof valley. Water collects in a valley to flow off the roof. The valley flashing is not exposed.