Roof Valley Gutter Construction Details

Roof valleys are like gutters with a steep pitch but the stakes are higher for valleys than they are for gutters in a previous video we covered how to flash roof edges before shingling.

Roof valley gutter construction details.

Roof problems valley gutters. There are two common methods for completing the flashing of a valley in a shingle roof system. Here are a few pointers. Flashing a humpy old roof valley requires a little give and take and a backup plan.

Design right by alide elkink freelance technical writer wellington cross sectional details for valley gutters are given in both acceptable solution e2 as1 and the nz metal roof and wall cladding code of practice. Valleys shall have suitable weathering details including flashings to resist the passage of moisture to the inside of the building. 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. Cut adjacent tiles and tile and a half tiles so that valley tiles course in and fit neatly.

The width of the open valley is dependent upon the roof pitch and the volume of water expected to drain into the gutter. Valley with valley tiles ensure that continuous support is provided for ends of tiling battens on each side of valley. In a previous video we covered how to flash roof edges before shingling. To understand what makes a valley either closed or open it is important to understand how a valley is constructed.

Valley gutters detailing around the intersection of a valley gutter and a fascia board can be a little tricky. One of the details that varies between homes is the method of flashing the valley areas of the roof. We use lots of sketches and photos in our building surveys. Closed valleys or open valleys.

First clean the debris out of the valley including sawdust nails and whatever else is in there. Proprietary gutter or valley systems. Part 1 a guide to roof construction covers an overview of flat and pitched roofs. To get the most out of it is helpful to also read parts 1 and 2.

Note that it is not. Part 3 of the four part guide to roof construction covers pitched roof detail. Cover valley with a strip of underlay not less than 600mm wide underlapping general underlay. Table 11 gives the minimum recommended valley widths for different roof pitches and plan areas.

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 chute outlets for gutters 37 pipe outlets for gutters 38 roll and drip joints 39. In this video we ll flash the valley. Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings.