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.
Valley board roof.
Grp valley troughs are a robust durable and lightweight alternative to lead and zinc valley.
Open valley troughs have been designed as an alternative to traditional lead troughs a safe and efficient way to collect rainwater run off.
Then lap the main roof felt over the trough and then tile etc.
Grp valley troughs provide you with a durable and cost effective alternative to lead products.
Roof valleys are the channels that run down the joints of the roof.
Grp valleys are manufactured from glass reinforced plastic.
Then lay the valley felt.
We ve arranged our superb selection into grp valley troughs for tiled roofs and roof valley solutions for slate roofs.
Setting the valley boards flush requires extra work as the boarding must be cut to fit between the rafters supported on extra timbers fixed to the sides of the rafters.
Then fix the grp trough.
Soup to nuts riley shows the proper way of installing a valley on a roof.
Additional eaves closure pieces and counter battens are not required and they create a close cut appearance.
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.
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Thin plywood linings are fitted over the valley boards to maintain a smooth finish under a lead lined valley.