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

Open Valley Troughs for Slate Roofs

The open valley trough range provides drainage channels at the roof valleys. These traditional, pre-formed GRP troughs are perfectly safe to use when wanting…
Danelaw Open Valley HDL 361 362

Narrow Open Valley Trough for Tile Roofs

The open valley trough range provides drainage channels at the roof valleys. These traditional, pre-formed GRP troughs are perfectly safe to use when wanting…