Exterior Capitals
Polure exterior capitals provide weather-hardened architectural head profiles engineered specifically to crown exterior facade columns and entrance porticos. Molded from high-density rigid polyurethane (150-220 kg/m³), these exterior capitals offer timber-matching mechanical strength and hail resistance without imposing heavy structural loads on outer walls. Featuring a closed-cell polymer structure with water absorption under 1%, they will never absorb rain, rot, freeze-thaw crack, or cultivate mold under severe weather exposure. Thermally stable from -100 °C / +80 °C and rated Class B2 for fire safety, each capital comes pre-coated with factory white acrylic primer. Note that Polure exterior capitals are strictly decorative non-load-bearing components; structural loads must be supported by an internal steel profile. Never pour concrete inside. Installation requires applying continuous polyurethane assembly adhesive on rear contact faces (silicone is strictly forbidden), secured with mechanical screw anchors. Fill screw holes with facade filler, sand smooth with 180-220 grit paper, and coat with elastic, UV-resistant exterior paint.
Frequently Asked Questions
Are Polure Exterior Capitals load-bearing?
No, Polure Exterior Capitals are strictly decorative and NON-LOAD-BEARING. Structural loads must be supported by an internal steel profile.
Will Exterior Capitals crack or rot in winter freezing weather?
No, with water absorption strictly under 1%, they will never rot, crack, or swell from rain, snow, or frost.
What adhesive and paint must be used for exterior capitals?
Use polyurethane assembly adhesive combined with screws for mounting (silicone is forbidden). Finish with elastic UV-resistant exterior paint.
Can concrete be poured inside Exterior Capitals?
NEVER pour concrete inside Exterior Capitals as it will damage and distort the polyurethane shell.