Pitched Roof Valley

Water collects in a valley to flow off the roof.

Pitched roof valley. But here it will be different since the hip rafter doesn t lie at 45 degrees to the commons. It is an area where water is directed towards rather than away from therefore correct detailing and construction is essential. For example in an equal hip roof with an 8 12 pitch the pitch of the hip rafter would be 8 17. Ridge verge valleys.

Made from glass reinforced plastic they are a strong long lasting and lightweight alternative to traditional lead and zinc valleys. Woven closed cut and open. An open valley often 100mm or 150mm wide with a metal normally lead or sometimes a grp lining. One of the areas of a pitched roof most prone to leakage if not constructed properly is the valley.

Shop from our range of grp valley troughs. Valley tiles which allow the roof to be continued round corners they are special tiles which are the opposite of a hip tile really. In his latest consultant case study pitched roofing consultant john mercer focuses on tiled valleys and dispels some myths around mortar and offers some key guidance on an area that in his experience presents some of the most common causes of roof leakage in this next case study i turn my attention to tiled valleys. Your choice of valley installation method is critical because when improperly installed valleys are risks for serious leaks.

A common misconception is that the mortar bedding is there to prevent water access. Our products have been sourced from leading manufacturers including manthorpe. Essentially there are three main ways to shingle a roof valley.