Which maintenance regimes and inspection intervals maximise durability and warranty compliance for a glass curtain wall?

A well-designed maintenance program ensures a glass curtain wall retains its structural integrity, appearance, and warranty eligibility. Regular cleaning removes pollutants that may degrade coatings and sealants. Inspection intervals typically occur every 6 to 12 months, depending on environmental exposure. Key inspection points include sealant adhesion, gasket condition, drainage channel obstructions, anchor corrosion, and glass coating degradation. Movement joints must be checked to ensure they remain functional after seismic events or temperature shifts. Re-sealing cycles every 8–15 years may be necessary for long-term performance. Access equipment such as BMUs (Building Maintenance Units) must be properly designed during the initial façade engineering phase. A proactive maintenance regime prevents costly failures and extends service life to 40 years or more. Manufacturers may also require documented inspections to maintain warranty validity.