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. 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. The valley flashing is not exposed.

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Trim that goes on this area is called valley trim.

Roofing terms valley.

The internal angle formed by the intersection of two sloping roof planes to provide water runoff. 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. Seal down a factory applied asphalt strip used to bond a shingle to the one above. Water flows to the valleys of your roof the same way.

Your roofing contractor will probably recommend installing special underlayment and flashing materials that you won t see on other parts of the roof. For this reason roof valleys are one of the first places where water will penetrate in a failing roof. Your choice of valley installation method is critical because when improperly installed valleys are risks for serious leaks. Roofing terms you should know.

Trim that goes on this area is called valley trim. Woven closed cut and open. Essentially there are three main ways to shingle a roof valley. Saturant asphalt used to impregnate felt for waterproofing and strength.

Open valley valley in which metal is used and roofing material does not cover entire valley area as in a closed valley. A method of valley treatment in which shingles from one side of the valley extend across the valley while shingles from the other side are trimmed 2 from the valley centerline. As a licenced roofing contractor and president of joel s roofing rain gutter co inc joel grusinski feels strongly in the importance of making an educated decision when it comes to repairing or replacing your roof. The following is a comprehensive list of roofing terms posted for your knowledge and benefit.

Water collects in a valley to flow off the roof. A roof valley is formed where two roof slopes meet. Familiarizing yourself with this list of roofing terms may help you communicate a little better with your. This is used to provide wind resistance.