Corners & Closures

Where two runs of flat roof trim meet at a corner - whether internal or external - a purpose-made corner piece provides a clean, watertight junction without the need for mitring or site-fabricating joints in the trim. This range of GRP corner and closure trims includes universal pieces that are compatible with multiple trim profiles across the CFS range.

The C4 Universal Internal Corner is designed for internal 90° corners where two runs of raised edge or similar trim meet at a wall or parapet. The C1 Universal External Corner handles the equivalent external corner detail. Both are moulded in GRP to match the grey finish of the linear trim profiles and are fixed in the same way - using PU adhesive for a secure, weather-resistant bond. Specifying the correct corner piece eliminates a common point of weakness in flat roof detailing.