Cover metal gutter lining up overthe tilt batten and extend under the eave course by minimum 150 to 200mm.
Pitched roof box gutter detail.
Pitched roofs 7 2 7 2 21 valleys and hidden gutters valleys shall have suitable weathering details including flashings to resist the passage of moisture to the inside of the building.
It may be lined with epdm rubber metal asphalt or roofing felt and may be concealed behind a parapet or the eaves or in a roof valley.
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Lap roof underlay over metal welt.
Box gutter eaves fix continuous timber tilt batten at eaves to provide support for metal flashing and eaves course of tiles.