Yes. Safetyline systems are engineered for coastal NSW conditions — from the Northern Beaches and Eastern Suburbs to Byron Bay and the Illawarra. Our systems use stainless steel hardware, marine-grade aluminium alloys, and EPDM/silicone seals tested to AS 2047 and AS 4420. When closed, air infiltration of 0.03–0.12 L/s·m² helps manage indoor humidity and reduce cooling loads.