Turn harsh wall junctions into smooth, durable abutments — even where insulation build-up or tall skirtings need extra height. D310 is a long-leg wall fillet that eases the 90° turn at abutting masonry so your laminate runs cleanly up the wall before you flash it. Typical long-leg geometry gives more coverage than a D260, making it ideal where you want a generous fillet and tidy, fast glassing. 

Why roofers pick it

• Easier glassing at walls: softens the corner so resin/CSM wet-out is faster and cleaner.
• Extra coverage: extended leg copes with higher upstands/insulation build-ups before flashing.
• System fit: fix with PU trim adhesive + pins, bandage fixings, laminate with RORR Roofing Resin + RORR Catalyst, finish with RORR Grey Topcoat.

Install notes

• Dry-fit, bead PU trim adhesive, pin, then bandage nail lines; laminate deck → trim → upstand; finish with C100 or compatible flashing.

Specs (typical)

• Length: 3 m
• Profile: extended wall fillet for abutments.

FAQs — D310 Extended Wall Fillet

Where would I choose D310 over D260?
Where you need more leg height at the wall (insulation build-ups, taller skirtings) for a cleaner transition. 

Do I still need flashing?
Yes — complete the junction with C100 simulated lead flashing or equivalent after laminating. 

Compatible with RORR GRP?
Absolutely: RORR Resin + RORR Catalyst, RORR Bandage/CSM, RORR Grey Topcoat.