PRANCE metalwork is a leading manufacturer of metal ceiling and facade systems.
What are the key considerations when specifying spandrel panels and opaque infill for a glass curtain wall system?
Spandrel panels and opaque infill are functional and aesthetic components that conceal floor slabs, insulation, and building services behind the curtain wall. Key considerations include fire performance, thermal continuity, compatibility with adjacent vision glazing, and maintainability. For regions like the Gulf and Central Asia, specify non-combustible cores (mineral wool) or metal composite panels with fire-rated cores where required by code.
Thermal continuity is essential: spandrel design should maintain the curtain wall’s thermal break strategy to avoid linear thermal bridging. Employ insulated infill panels with adequate R-values and consider vented spandrels or ventilated cavity systems to prevent moisture accumulation behind the cladding. Match exterior finishes, reflectance, and color to adjacent vision glass to ensure consistent façade appearance under varied sunlight angles.
Detail spandrel access for inspection and replacement: removable panels or access hatches simplify repairs to insulation or buried services. For coastal or desert environments, select corrosion-resistant support clips and drainage paths to avoid staining and corrosion. Ensure that the cladding finish meets PVDF or AAMA 2605 coatings for durability.
Finally, coordinate with structural and MEP teams to confirm that spandrel cavities accommodate required insulation thickness and that penetrations for vents, sensor wiring, or lighting do not compromise fire or waterproofing performance.