Pitched Roof Valley Gutter Detail

One of the areas of a pitched roof most prone to leakage if not constructed properly is the valley.
Pitched roof valley gutter detail. 1stassociated co uk surveyors can provide help and advice with regard to property reports building surveys structural surveys independent valuations structural reports engineers reports specific defects report home buyers reports or any other property matters. We ve arranged our superb selection into grp valley troughs for tiled roofs and roof valley solutions for slate roofs. It is an area where water is directed towards rather than away from therefore correct detailing and construction is essential. Maximum catchment areas for valley gutters are given in table 8 of e2 as1 for minimum roof pitch and gutter widths.
Part 1 a guide to roof construction covers an overview of flat and pitched roofs. The lowest course of tiles slates should not touch the roof membrane. Where a flat roof adjoins a pitched roof or where valleys or gutters occur the waterproof membrane should be carried up under the tiling to a height of 150mm above the flat roof valley or gutter and lapped by the roofing underlay. A common misconception is that the mortar bedding is there to prevent water access.
Catchment area must be no more than 25 m gutter must be at least 250 mm wide. Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings. To get the most out of it is helpful to also read parts 1 and 2. Part 3 of the four part guide to roof construction covers pitched roof detail.
We use lots of sketches and photos in our building surveys. Where the roof pitch is between 8 12 5 the. How to do a roof valley martin s roofing and guttering merton ltd for all your roofing needs. If you can t find it here give our friendly customer services team a call on 01752 692760 and they ll be glad to help you.
Roof problems valley gutters.