B300 Heavy Duty Raised Trim 140Mm Depth, 3M Long, Ideal For Durable Water Management

The B300 Heavy Duty Raised Edge Trim is a robust GRP fibreglass roofing trim designed for maximum durability and a professional finish on flat roofing systems. With a 140mm depth and a 3-metre standard length, this trim is best used in areas where water runoff is not required, making it an essential choice for large perimeter edges that demand both strength and long-lasting performance.

Manufactured from 600g/m² high-quality fibreglass (GRP), the B300 trim offers exceptional resistance to weather exposure, UV rays, and environmental stress, ensuring long-term reliability. It delivers a clean, consistent appearance while providing enhanced edge protection across a wide range of roofing projects.

✅ Compatibility & Application

1. Matches seamlessly with the A250 Drip Trim (140mm depth), ensuring a consistent system design.
2. Fully compatible with C1 External and C4 Internal Corner Trims, enabling easy, neat corner connections without complicated mitre cuts.
3. Suitable for use on residential, commercial, and industrial flat roofs, including garages, house extensions, garden rooms, sheds, and large roofing structures.

✅ Trim Size Guide

1. Small Trims (65mm drop): A170 Drip / B230 Raised Edge
2. Medium Trims (90mm drop): A200 Drip / B260 Raised Edge
3. Large Trims (140mm drop): A250 Drip / B300 Raised Edge

Other compatible trims in the range:

1. D260 Wall Fillet
2. C100 Simulated Lead Trim
3. E280 Expansion Joint
4. G180 Drainage Trim
5. A195 Internal / A195 External Trims

✅ Key Benefits

1. Heavy-Duty Design – With its 140mm depth, this trim provides strong structural integrity and long-lasting edge protection.
2. Weatherproof & Low Maintenance – Resistant to water ingress, rot, rust, and corrosion, requiring minimal upkeep after installation.
3. Easy Installation – Bonds and tapes using standard GRP methods with no specialist tools required.
4. Professional Appearance – Creates a neat, consistent, and watertight finish on all exposed roof edges.

📏 Product Specifications

1. Type: Heavy Duty Raised Fibreglass Trim
2. Depth: 140mm
3. Length: 3 metres (orders of 3 trims or fewer will be cut into 2 x 1.5m lengths to prevent breakages in transit)
4. Material: 600g/m² GRP Fibreglass
5. Upstand Height: 35mm (uniform across all trims)
6. Finish: Smooth, resin-ready surface for quick installation

The B300 Heavy Duty Raised Edge Trim is the ideal choice for professional roofers and DIY installers who require durability, reliability, and a watertight edge finish for demanding roofing projects.

Please note orders for 3 trims or less will be cut into 2 x 1.5m ,This is due to breakages .

Here are 5 more great reasons to buy from us:

Returns are easy, if the items are�unopened and unused�then simply�contact us�for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!

In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down.

We insist that you love everything you buy from us. If you're unhappy for any reason whatsoever, just let us know and we'll bend over backwards to make things right again.

Ordering from APEX Fibreglass Roofing Supplies is 100% safe and secureso you can rest easy. Your personal details are never shared, sold or rented to anyone either.

Here are 5 more great reasons to buy from us:

Returns are easy, if the items are�unopened and unused�then simply�contact us�for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!

In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down.

We insist that you love everything you buy from us. If you're unhappy for any reason whatsoever, just let us know and we'll bend over backwards to make things right again.

Ordering from APEX Fibreglass Roofing Supplies is 100% safe and secureso you can rest easy. Your personal details are never shared, sold or rented to anyone either.