Stop water leaving open edges on deep fascias. The B300 is an extra-deep raised edge that contains run-off and presents a sharp perimeter — ideal where you’ve got thicker insulation at the fascia or want a bolder upstand. Depth matches common deep eaves trims (e.g., A250), making it a natural partner on the non-draining sides. 

Why roofers pick it

• Perimeter containment: keeps water on the roof so it flows to the drip/gutter side.
• Covers build-ups: extra depth accommodates insulation/fascia details.
• Corner-ready: works with standard C-series corners for fast returns.

Install notes

• Batten, PU adhesive bead, pin and bandage; laminate over with RORR.

Specs (typical)

• Length: 3 m | Girth: ~300 mm | Depth: up to ~180 mm profile-dependent.

FAQs — B300 Raised Edge

When would I choose B300 over B260/B240?
When you need more face depth to cover insulation and create a taller upstand. 

Does it work with deep eaves trims?
Yes — commonly paired where A250 is used at the drip. 

RORR compatible?
Yes — bandage and laminate with RORR, then RORR Grey Topcoat.