Lead Valley Gutter Construction

Parapet and tapered gutters 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.

Lead valley gutter construction.

Thin plywood linings are fitted over the valley boards to maintain a smooth finish under a lead lined valley. As in the lead valley example any water drains into the grp strip and then down into a gutter. Steve hempstock former chairman of the lead contractors association looks at the methods and materials involved in the production of lead gutters and identifies the most common defects their causes and how to prevent and remedy them. The width of the open valley is dependent upon the roof pitch and the volume of water expected to drain into the gutter.

Fixing of lead sheet flashings fixings to abutment walls 29 soakers and step flashings step and cover flashings and secret gutters 30 cover flashings 31 apron flashings 32 chimney flashings 33 pitched valleys 34 ridges and hips 35 mitred hip and valley soakers 36 parapet and tapered gutters 36 drips and rolls for gutters 37. 3a flashings apron and cover. He focusses on lead lined parapet and valley gutters and also briefly addresses the problem of underside corrosion. In the photo above two of these roofs need repairing.

Pitched valley gutters weatherings to cornices parapets etc. A roof valley is basically a gutter set between two meeting pitched roofs. It is necessary to prevent water dripping or flowing off roofs in an uncontrolled manner for several reasons. All three types of construction can be attractive.

The attraction of the valley tile is that each level of tile can sweep round the roof the. In the old days the lead lining pieces were just lapped and water ingress was inevitable. The grp closed valley roof has just been refurbished. Depending on the roof area it serves the valley is the exit point for a large volume of water so extreme care should be taken with installation.

Table 11 gives the minimum recommended valley widths for different roof pitches and plan areas. We will look here at the basic installation of an open lead lined roof valley. Decorative lead hopper head dated 1662 durham castle a rain gutter eavestrough eaves shoot or surface water collection channel is a component of a water discharge system for a building.