Product Data Sheet Show all documents

Cromar® Expansion Joint/Roll Mop Trim

Liquid Roof System expansion joint for larger roofs

The Expansion Joint Trim is a specialist GRP component designed to accommodate movement and create clean, defined joints within flat roofing systems. This trim works with a cold-applied GRP system that is easy to form on site. Once installed and laminated, it becomes impact-resistant, weatherproof, and virtually maintenance-free, making it a reliable solution for long-term roof performance. The Expansion Joint trim offers guaranteed versatility, making it suitable for a wide range of flat roofing applications. Its robust GRP construction ensures consistent performance even in demanding conditions, helping to deliver a professional and long-lasting roofing finish.  

  • Consistent weight and thickness.
  • Excellent finish and appearance.
  • High strength and flexibility.
  • Excellent Long-Term durability.
  • Easy jointing.
  • Facilitates roof void ventilation.
  • Unique high adhesion finish.
  • U.V. stabilisation.
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Product Data Sheet Show all documents

Usage

  • Ideal for use on larger roof areas, this trim helps manage natural expansion and contraction while maintaining a durable, watertight finish.
  • Commonly used to form rolls on ridge details or to create expansion joints on large roofs where movement is more likely to occur. By allowing controlled flexibility, it helps prevent stress cracking and prolongs the life of the roofing system.

Advantages

  • Consistent weight and thickness.
  • Excellent finish and appearance.
  • High strength and flexibility.
  • Excellent Long-Term durability.
  • Easy jointing.
  • Facilitates roof void ventilation.
  • Unique high adhesion finish.
  • U.V. stabilisation.

Packaging

Box containing 10 units

Colour

Grey

Product Details

Product Information

Shelf Life

Physical plastic items have not had their shelf life determined due to longevity

Storage Conditions

The product must be stored undamaged in packaging, in dry conditions at temperatures between +5 °C and +30 °C

Length

3 m

Thickness

1 mm

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