Corodrain Roof Gutters

Joining Gutter

Joining Gutter

The Corodrain Joining Gutter provides a waterproof seal between the adjacent roofs of terraced houses or where a new roof needs to join an existing roof. The gutter can join any combination of slates, double lap or interlocking tiles with minimal disturbance to the adjacent roof. The design ensures there is a minimum kick up of the slates. There is a 50mm wide sanded strip for mortar retention. 



  • BBA Approved Cert No. 89/2153
  • 1.8m, 2.4m and 3m lengths 
  • At least durable as lead
  • Similar in appearance to lead
  • Less prone to theft
  • Quick to install
  • UV light and acid rain resistant
  • Smooth surface inhibits the growth of moss & lichen and build-up of debris
  • Fire resistance to SAB to BS476 part 3 and Class 3 BS476 part 7

ideal for

  • Providing a waterproof seal between adjacent roofs 


Please contact our Technical Department who will be happy to advise on installation instructions.

Joining Gutter HC


GRP lasts as long as lead, is tougher, cheaper, more resistant to accidental damage, and is less prone to theft or vandalism. Using preformed GRP 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). 

Made with high quality un-filled polyester resin with glass fibre reinforcement for maximum strength. A tough bonded melinex film gives excellent weathering performance. Minimum life of 30 years. 

Manufactured to BS EN ISO 9001:2008 quality standard, at our automated continuous pultrusion plant in Coventry. All available from stock for rapid delivery to site.

The 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.




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