round casing arch

A round casing arch is the arch piece that completes the casing system of an opening finished at the top with a semicircular curve. At the point where the vertical casing elements end, it wraps the upper curve of the opening and completes the casing frame without interruption. It is used at door and window openings to form an arch line integrated with the casing. Round casing arches made from polyurethane are lightweight and mount easily and quickly above the opening. They resist moisture and impact, do not crack or swell, and can be painted; they can also be used on exterior facades. Polure produces round casing arches in the same section as the vertical casing profiles, ensuring continuity and a clean joint at the connections.