Pediment with keystone
Pediment with keystone refers to a triangular, arched, or segmentally curved high-density polyurethane door and window pediment header centered around an architectural keystone motif. Engineered to crown entrance doors and exterior window casings across classical building facades, polyurethane keystone pediments eliminate structural weight loads while ensuring 100% moisture protection without cracking, flaking, or rotting.
Frequently Asked Questions
What defines a pediment with keystone?
It is a triangular or curved architectural door and window header crowned with a central ornamental keystone block.
What advantage does a polyurethane keystone pediment hold over plaster?
Its lightweight composition adds zero stress to facade structures, remains completely moisture-proof, and will never crack.