This traditional dry-fix valley trough is suitable for use in slate and tile-pitched roofs. Made from GRP (Glass Reinforced Plastic), it is an ideal lead replacement as it is less prone to vandalism or theft, more resistant to accidental damage and is cheaper and tougher. The t... Read More
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Find out moreThis traditional dry-fix valley trough is suitable for use in slate and tile-pitched roofs. Made from GRP (Glass Reinforced Plastic), it is an ideal lead replacement as it is less prone to vandalism or theft, more resistant to accidental damage and is cheaper and tougher.
The traditional dry fix valley has options to suit slate, plain, low profile or high profile tiles. Using this GRP valley trough saves you a significant amount of time during installation, eliminating any issues compared to traditional methods.
At a roof pitch from 17.5° to 22°, there should be a 350mm lap, from 22.5° to 29° a 300mm lap, from 30° to 39° a 200mm lap and from 40° to 49° a 150mm lap.
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Question:
Does this valley work for plain tiles & does go over or under battens
Answer:
Yes for Plain tiles and slate - It goes over the battens look at this https://www.roofingsuperstore.co.uk/user-guides-brochures/corodrain-grp-valley-bba-certificate.html (page 3)
Question:
is 80mm height suitable for slate roof?
Answer:
Yes this will be suitable for use on a Slate Roof.
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