Diamond GRP Angle Trim

The GRP (Glass Reinforced Polyester) external angle trim has been manufactured form strong fibre glass and is pre-formed and formulated for uses such as copings, flush trimming and neat internal angles and upstands. Additionally, it is used to conceal any features that sit perpendicular to the main roof or any other laminated surface.


  • Fire resistant
  • UV resistant
  • Weatherproof
  • Resists heavy foot traffic
  • Ideal for flat roofs
  • Easy to apply & lightweight
  • Load bearing
  • Measures 3m in length

Diamond GRP wall fillet trim

The GRP (Glass Reinforced Polyester) wall fillet trim has been manufactured from durable fibre glass and is designed to be applied where flat roof butts against an existing wall. Moreover, this trim creates a 45° angle to deflect rainwater.


  • Made up of high-quality fibre glass
  • Applied where a flat roof butts against an existing wall
  • Creates a 45° angle to deflect rainwater
  • Lightweight & durable
  • Easy to apply
  • UV resistant
  • Crack-resistant
  • Long-lasting
  • Measures 3m in length