GRP Dry Valleys provide a robust, durable and lightweight alternative to lead and zinc valleys.
70mm & 110mm 3m long x 400mm wide x 1.1mm
Product Codes / Weight (per pack)
Dry Slate Valley Trough | 70mm | KR966000 | 25kg
Dry Tile Valley Trough | 110mm | KR966100 | 29kg
Banded in packs of 10 pcs
Grey UV stabilised Glass Reinforced Polyester
Fire tested to comply with BS476: Part 3 SAB and Part 7 Class 3
For plain angles of 90° only
20° maximum pitch variance
17.5° minimum rafter pitch
60° maximum rafter pitch
Allow 150mm overlap for rafter pitches 40° – 60°.
Allow 200mm overlap for rafter pitches 22.5° – 39.5°.
Allow 250mm overlap for rafter pitches 17.5° – 22°.