GRP Valley Troughs

The Danelaw® product range includes both dry fix and traditional open valley troughs for a variety of tiles. All our valley troughs are made from glass-reinforced plastic (GRP), an excellent alternative to lead.

Dry fix valley troughs are mortar-free, providing hidden water gulleys at the roof valleys. Additional eaves closure pieces and counter battens are not required and they create a close-cut appearance.

Open valley troughs have been designed as an alternative to traditional lead troughs, a safe and efficient way to collect rainwater run-off. They provide a weatherproof drainage channel where cut tiles meet.

There are lots of benefits of selecting flashing products made from GRP. Firstly, when compared with lead, GRP products take half as much time and cost to install. This is partly because they are so lightweight and easy to handle, and also because they are preformed to the required shape. They do not hold the same value as lead, so deter criminals from theft and the associated damaging to the property. GRP does not streak or stain, and we offer a 30-year service life guarantee for all our GRP flashing products, so you can be safe in the knowledge your roof will remain leak-free for years to come.

Click the dry fix valley trough chart below, a useful tool to match tile compatibility:

Dry Fix Valley Trough Compatibility Chart

Dry fix valley trough installation video:

Stand alone photo of the GRP Dry Fix Valley Trough for Profiled Tiles

Dry Fix Valley Trough for Profiled Tile Roofs

Stand alone photo of the GRP Dry Fix Valley Trough for Low Profiled and Plain Tiles

Dry Fix Valley Trough for Flat and Plain Tile Roofs

Stand alone photo of the GRP Dry Fix Valley Trough for Slates

Dry Fix Valley Trough for Slate Roofs

Stand alone photo of the GRP Open Valley Trough for Tile Roofs

Standard Open Valley Trough for Tile Roofs

Stand alone photo of the GRP Open Valley Trough for Tile Roofs

Narrow Open Valley Trough for Tile Roofs

Stand alone photo of the GRP Open Valley Trough for Tile Roofs

Narrow Open Valley Trough for Tile Roofs Without Retention Bar

Stand alone photo of the GRP Open Valley Trough for Slate Roofs

Open Valley Troughs for Slate Roofs

Stand alone photo of the GRP Open Valley Trough for Scottish Slate Roofs

Open Valley Trough for Scottish Slate Roofs

Dry Valley Accessory – Small Cut Tile Support Bridge

Dry Valley Accessory – Dry Valley Clip


Danelaw Stockist

We have a comprehensive list of merchants across the UK that stock our Danelaw roofing products. Search using location, and discover a list of stockists in that area with contact information of the branch and your local area Sales Manager, who can help you with any questions you may have.

View Stockist


Download a brochure

Download the Danelaw Brochure or Pocket Product Guide

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Hambleside Danelaw Limited
Long March, Daventry, Northamptonshire, NN11 4NR, UK
+44 (0) 1327 701 900   |   +44 (0) 1327 701 909

© Hambleside Danelaw Limited