Wall Trim - 25mm x 100mm

Wall trims offer an economical alternative to lead and are not susceptible to theft. This trim fea...

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PVC Cladding UKClassicbond Epdm Wall Trim - 25Mm X 100Mm
Free delivery in 1–3 days
£15.84
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Professional Building SuppliesClassicbond Epdm Wall Trim - 25Mm X 100Mm
Free delivery in 1–3 days
£16.78
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Product Information

Full details

The ClassicBond EPDM Wall Trim is designed for professional roofers and DIY enthusiasts who need a reliable, theft-resistant alternative to traditional lead flashing. It provides a secure, watertight finish for roofing junctions, though it requires specific fasteners and precise wall chasing to ensure proper integration with masonry.

All features

Model Part Number600006
BrandClassicBond EPDM

Extended Product Information

FAQs

Can I use this trim on curved walls?

This trim is rigid and intended for straight runs; it is not recommended for curved applications.

Are fasteners included with the trim?

No, RB trim fasteners must be purchased separately to ensure compatibility.

Does this require special tools to cut?

The trim can typically be cut to length using standard metal-cutting hand tools or a hacksaw.

Is this trim paintable?

While the finish is designed to be aesthetic on its own, it is generally recommended to leave the material in its natural state unless otherwise specified for a particular paint system.

How deep should I chase the wall?

The chase should be deep enough to accommodate the full 25mm return of the trim plus a small allowance for sealant.

Troubleshooting

Trim feels loose after installation

Ensure that the RB trim fasteners are driven into solid masonry or sufficient blocking, and check that the return is fully seated in the chase.

Water pooling behind the trim

Verify that the masonry chase was sealed properly with a suitable exterior-grade sealant to prevent water bypass.

Pros and Cons

Pros

  • Resistant to theft, unlike lead flashing
  • Lightweight and easy to transport to roof levels
  • Provides a consistent, professional appearance
  • Cost-effective solution for roof waterproofing

Cons

  • Requires precise chasing into brickwork for optimal fit
  • Not suitable for complex, non-linear wall geometries
  • Must be paired with specific RB trim fasteners for warranty compliance

Setup, Compatibility & Care

Installation requires basic masonry tools, including an angle grinder for chasing the wall and a power drill for the fasteners. Ensure the substrate is clean and dry before applying any supplemental sealants. Compatibility is limited to standard masonry wall upstands; verify that your mortar joints are sound before attempting to fix the trim. To maintain the material, periodically inspect the seal between the trim face and the wall. Wipe down the trim with a damp cloth to remove debris and dirt buildup, avoiding harsh abrasive chemicals that might degrade the finish.

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