Extruded from PVC-u for greater UV stability Catnic Lintel Arch cnetres are designed in accordance with PVC-c windows. The design incorporates built-in weep vents for discharging the wind-driven rain that penetrates the external skin of the cavity wall.
Allows easy construction of segmental arches
Includes integral weep vents
Use over openings in external cavity walls.
Provides permanent centering for brick arch construction.