Valleys
Valley gutters must be made of the same metal or coating as the roof tiles or a compatible material, and when the roof tile is painted or coated the valleys must also be painted.
Where secret gutters are used or where the flashings are unseen, they must have a durability of 50 years.
The valley must have a minimum upstand of 20 mm, and the fasteners must not penetrate the valley.
For valley sizing, see Valley Capacity Calculator.
Clause:
015_003_002_000_000_000_000_000_000
Clause Number:
15.3.2
/cop/other-products/pressed-metal-tiles#valleys
Revision Category:
2 - Editing and rearrangement
Draft Clause:
014_003_002_000_000_000_000_000_000
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