Corodrain Dry Fix Joining Gutters are manufactured in high performance GRP, a tough and long lasting alternative to lead which is cheaper, quicker to install and less prone to vandalism and theft. The joining gutters create a waterproof joint between two different roof coverings on tiled pitched roofs, without the need for mortar. Two profile options are available with central upstands at 100mm and 70mm. They can be retrofitted to existing roofs or installed on new roof with minimal disturbance to the adjacent roof and property.Recommended for use with low profile tiles.PropertiesLength: 3m.Upstand height: 70mm.Thickness: 2mm.Fire resistance: SAB to BS 476 Part 3 & Class 3 BS 476 Part 7Heavy weight.Lead replacementGRP lasts as long as lead, is tougher, cheaper, more resistant to accidental damage, and is less prone to theft or vandalism. Using preformed GRP Dry Fix Joining Gutter saves significant installation time over traditional methods. Roofers report elimination of many problems with valley troughs when changing from lead to Corodrain GRP. Coloured lead grey as standard (other colours available on request). No maintenanceThe inherent qualities of the materials make the gutters UV light and acid rain resistant, and the smooth surface finish inhibits the growth of moss, lichen and the build up of debris.