Roof Valley Trays

Grp valley troughs provide you with a durable and cost effective alternative to lead products. 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. At the ridge of a dormer roof or where one or more sections intersect with the ridge of a roof it is necessary to mark the angle of intersection and cut the valley trough prior to fixing.

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Cut each side at the upper end of the valley to conform with the corresponding slopes of the roof.

Roof valley trays.

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. Pre formed aluminium valleys such as this one manufactured by associated lead mills have been designed for optimum performance as a highly cost effective alternative to the more traditional lead products. Looking for something specific. Roof valleys are the channels that run down the joints of the roof.

A minimum code 4 lead saddle should then be dressed over the. Benefits of grp valley troughs. We ve arranged our superb selection into grp valley troughs for tiled roofs and roof valley solutions for slate roofs. The upstands or tilting fillets at each side of the valley are an important feature of good valley construction as they keep the water within the centre area of the valley.

Grp valleys are manufactured from glass reinforced plastic. Nevertheless they are often omitted from lead valleys. Attach the valley in place with 1 1 4 inch roofing nails and a shingle hatchet or hammer. They are typically metal and seal the joints between the two faces of roofing material generally tiles or slates directing water to run off into the guttering.