Roof Valley Gutter Construction Details

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.

Roof valley gutter construction details.

Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings. 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. 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.

This valley has seen its better days but the. Valley gutters detailing around the intersection of a valley gutter and a fascia board can be a little tricky. Table 11 gives the minimum recommended valley widths for different roof pitches and plan areas. 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.

Purpose made valley trough tiles should be supported by gutter boards where the roof uses single lap interlocking tiles. The width of the open valley is dependent upon the roof pitch and the volume of water expected to drain into the gutter. Here are a few pointers. Cover valley with a strip of underlay not less than 600mm wide underlapping general underlay.

Valley with valley tiles ensure that continuous support is provided for ends of tiling battens on each side of valley. Proprietary gutter or valley systems. Note that it is not. Part 3 of the four part guide to roof construction covers pitched roof detail.

Cut adjacent tiles and tile and a half tiles so that valley tiles course in and fit neatly. Valleys shall have suitable weathering details including flashings to resist the passage of moisture to the inside of the building.