Window Arch Pediment
Polure window arch pediments crown exterior window surrounds and interior archways with classical arched headers, molded profiles, and refined architectural proportions. Manufactured from high-density rigid polyurethane (150-220 kg/m³), this exterior facade element delivers wood-like structural strength and will not dent or fracture during severe hail or storm exposure. Featuring closed-cell composition with under 1% water absorption, it resists rotting, swelling, frost damage, and algae growth under harsh outdoor conditions. Formulated to perform in temperatures from -100 °C / +80 °C and certified with a B2 fire safety rating, every pediment comes factory-coated with a white acrylic technical primer. Installation requires precise miter positioning, continuous polyurethane assembly adhesive on rear contact faces AND joining edges, and screw attachment into mechanical anchors. Fill countersunk screw heads and joints with facade putty, sand smooth (180-220 grit), and finish with elastic exterior UV paint.
Frequently Asked Questions
What material is used in the Polure window arch pediment?
The Polure window arch pediment is manufactured from high-density rigid polyurethane (150-220 kg/m³), providing timber-like durability and a B2 fire rating.
Will a window arch pediment withstand severe weather like hail and frost?
Yes, with water absorption below 1% and thermal stability from -100 °C / +80 °C, it will not dent in hail or crack in freezing temperatures.
How is a window arch pediment anchored securely to a window frame?
It is installed using continuous polyurethane assembly adhesive on wall contacts AND joining ends combined with countersunk screws. Silicone is forbidden.
What paint should be applied to a window arch pediment?
Apply elastic, UV-resistant exterior topcoat paint over the factory white primer after light sanding with 180-220 grit paper.