This Marley High Profile GRP Dry Valley Trough is intended to seamlessly match Anglia, Double Roman, Ludlow major, Ludlow plus, Mendip, and Wessex Marley tiles. It is compatible with roof pitches as steep as 60º and accommodates pitch variations of up to 20º on both sides of t... Read More
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Learn moreThis Marley High Profile GRP Dry Valley Trough is intended to seamlessly match Anglia, Double Roman, Ludlow major, Ludlow plus, Mendip, and Wessex Marley tiles. It is compatible with roof pitches as steep as 60º and accommodates pitch variations of up to 20º on both sides of the valley.
With an easy dry-fix installation process that is mortar-free, this product provides the finished appearance of a clear-cut roof alongside a robust and hassle-free lifespan.
Being that valleys are among the roof's most vulnerable zones, Marley Universal GRP dry valleys have been innovatively crafted to provide completely weathertight detailing. Not only quick and uncomplicated to install, but the valleys are fully compatible with various Marley concrete, clay plain, and interlocking tiles.
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Question:
how far away , gap should between tile and up stand to conform with Bs? i have 40mm
Answer:
In relation to your question, the gap between the tile edge and the upstand for the Marley High Profile GRP Dry Valley Trough does not have a specific requirement in BS 5534. The crucial point is that the valley remains clear, water flows freely, and the installation aligns with the manufacturer's instructions. Ideally, a gap of approximately 25-40mm from the tile edge to the centre of the valley is common for dry valley systems. If your 40mm measurement is from the tile edge to the valley water channel/upstand, it should not pose a compliance issue. In fact, this is preferable to tiles being cut too tightly to the valley.
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