3mm Aluminium Sloping Coping – 135° Internal Corner | 100mm External Leg

Finish angled internal wall junctions neatly with our 3 mm aluminium sloping coping 135° internal corner. Designed for precision fit and watertight performance, it creates a smooth transition between coping runs while keeping your parapet walls protected from rain and weather exposure.

Key Features

• 3 mm architectural-grade aluminium for long-term durability and rigidity

• 135° internal corner precisely formed for obtuse-angle wall junctions

• Integrated slope profile directs rainwater away from the wall surface

• 100 mm external leg ensures consistent wall coverage and alignment

• Powder-coated finish available in all RAL colours

• Lightweight, easy to fit, and compatible with all OMS coping systems

• Manufactured in the UK with quick turnaround and nationwide delivery

Why Choose This Aluminium Coping Corner

Perfect for angled rooflines and parapet layouts, this 135° internal corner ensures that your coping system remains fully sealed and visually consistent where inward angles meet. Its sloped design keeps water flowing correctly, preventing staining and damp build-up. Engineered for both commercial and residential applications, it combines precision manufacture with modern British craftsmanship.

What is a 135° internal coping corner used for?
It connects two coping runs at an inward angle to create a continuous, watertight joint while maintaining the slope of the system.

Is it compatible with sloped coping systems?
Yes, it matches the exact slope profile of our OMS copings, ensuring consistent drainage throughout the corner.

Can I order custom angles or sizes?
Absolutely. We offer bespoke coping corners in any angle, width, or RAL colour to suit specific architectural requirements.

How is it installed?
The section slots between coping runs using concealed brackets and sealant, producing a clean, secure fit with no visible fixings.

What makes sloped aluminium copings better than flat ones?
The built-in coping slope encourages rainwater run-off, reducing maintenance and keeping walls looking clean for years.

UK-made 3 mm sloped aluminium coping 135° internal corner with 100 mm external leg. Powder-coated in any RAL colour for a watertight, architectural finish.