Description
E280 GRP Expansion Trim – Expansion Joint Cover & Decorative Mop Roll Effect
The E280 GRP Expansion Trim is a dual-purpose fibreglass trim designed to cover expansion joints in flat roofs or create a traditional lead mop roll appearance.
Perfect for large GRP roofing areas (over 50m²), this trim allows for structural movement while maintaining a seamless, watertight finish.
Functional Protection with a Professional Finish
- Covers Expansion Joints – Prevents cracking by allowing natural roof movement
- Creates Mop Roll Effect – Decorative alternative to traditional lead detailing
- Cold Applied Installation – No heat or flames required
- Flexible & Easy to Shape – Forms smoothly over expansion gaps
- Highly Durable – Resistant to impact, foot traffic, and wear
- Weatherproof Performance – Fire retardant, frostproof, and storm resistant
- Low Maintenance – Long-lasting and reliable
Essential for Large GRP Roof Areas
Designed for use on flat roofs exceeding 50m², this trim helps:
- Manage structural expansion and contraction
- Prevent stress cracks in GRP systems
- Maintain waterproof integrity over time
Installation Guidance
- Create a 25mm expansion gap in the roof deck
- Apply PU adhesive in 30mm beads at 300mm centres
- Pin the trim over the gap
- Overlay with GRP matting and resin for a seamless finish
Ideal Applications
- Large flat roof installations
- GRP fibreglass roofing systems
- Expansion joint detailing
- Decorative mop roll effect finishes
- Domestic and commercial roofing projects
Product Specifications
- Product Type: GRP expansion trim (E280)
- Material: Fibreglass (GRP)
- Length: 3 metres
- Width: 92mm
- Raised Height: 65mm
- SKU: PG-Trim-Expansion
- Stock Type: Warehouse Fulfilled
Why Use an Expansion Trim?
Expansion trims allow roofs to move naturally without cracking, helping extend the lifespan of your roofing system while maintaining a clean, professional finish.
Frequently Asked Questions
What is an E280 expansion trim used for?
It is used to cover expansion joints or create a decorative mop roll effect on flat roofs.
When do I need an expansion trim?
It is recommended for GRP roofs over 50m² to allow for structural movement.
Does it replace lead mop rolls?
Yes, it can simulate the look of traditional lead detailing.
Is it easy to install?
Yes, it is cold applied and easy to form into shape.
Is it weather resistant?
Yes, it is durable, fire retardant, frostproof, and storm resistant.
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