How do different sealants and gaskets perform under UV, temperature cycling, and ageing in glass curtain wall assemblies?

Question

Accepted Answer

Sealants and gaskets must withstand UV radiation, thermal expansion, humidity, and environmental aging. Silicone sealants offer superior UV resistance and long-term elasticity, making them the industry standard. EPDM and silicone gaskets provide long-term compression recovery and weatherproofing. Proper joint design, sealant depth, and cure time ensure long service life. Selecting the right material prevents leaks, air infiltration, and structural issues.