Exterior Window Pediment Header
The exterior window pediment header by Polure crowns window openings and entrance doors with classical grandeur and architectural refinement. Manufactured from high-density rigid polyurethane (150-220 kg/m³), it delivers wood-like mechanical durability and high impact resistance, eliminating hail denting or storm damage associated with EPS alternatives. Its closed-cell structure maintains water absorption under 1%, ensuring it will not rot, warp, swell, or split when exposed to moisture on building facades. Remaining dimensionally stable from -100 °C / +80 °C, it carries a Class B2 fire safety rating. Delivered factory-primed with a smooth white acrylic technical coating, it requires finishing with elastic, UV-resistant exterior facade paint. Installation requires clean surfaces, continuous PU assembly adhesive along rear contact edges and joining points, and mechanical screw fasteners. Fill screw holes with facade filler, sand smooth (180-220 grit), and paint.
Frequently Asked Questions
What material is used in Polure exterior window pediment headers?
Polure exterior window pediment headers are manufactured from high-density rigid polyurethane (150-220 kg/m³), offering wood-like strength, low weight, and Class B2 fire safety.
Are exterior window pediment headers hail and weather resistant?
Yes, with water absorption under 1% and high impact resistance, they will not dent in hail, rot, swell, or crack between -100 °C / +80 °C.
How are exterior window pediment headers installed?
They are installed using a dual system: continuous PU assembly adhesive applied along wall contact surfaces combined with mechanical screws. Silicone is strictly forbidden.
Must exterior window pediment headers be painted outdoors?
Yes, while factory-primed with white acrylic coating, outdoor installations require painting with elastic, UV-resistant exterior paint to prevent UV discoloration.