Pitched Roof Valley Gutter Detail

How to do a roof valley martin s roofing and guttering merton ltd for all your roofing needs.

Pitched roof valley gutter detail. It is an area where water is directed towards rather than away from therefore correct detailing and construction is essential. Where the roof pitch is between 8 12 5 the. Part 3 of the four part guide to roof construction covers pitched roof detail. Maximum catchment areas for valley gutters are given in table 8 of e2 as1 for minimum roof pitch and gutter widths.

Our basic fitting guides are designed to assist installing rolled lead sheet in a range of roofing applications including flashings valleys gutters and flat roofing. Cut tile and a half tiles neatly and fix to form a gap minimum 125mm wide centred on valley. One of the areas of a pitched roof most prone to leakage if not constructed properly is the valley. To get the most out of it is helpful to also read parts 1 and 2.

A common misconception is that the mortar bedding is there to prevent water access. We use lots of sketches and photos in our building surveys. Catchment area must be no more than 25 m gutter must be at least 250 mm wide. Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley.

Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings. Cut underlay to rake and dress over tilting fillets to lap onto metal valley. Roof problems valley gutters. Ensure that valley boards plywood sheathing and tilting fillets provide full support for metal valley.

Part 1 a guide to roof construction covers an overview of flat and pitched roofs.