Grilles

Weatherproof Louvres

Outdoor-rated louvres for plant rooms, facades, and air intakes.

Weatherproof louvres are designed for external use — either as fresh air intakes or exhaust outlets for mechanical ventilation and air conditioning plant. The angled blades shed water away from the opening while still allowing air to pass freely, preventing rain ingress into the building or plant room.

The blade angle, spacing, and depth are engineered to achieve the best balance between free area (for airflow) and weather resistance. Higher-spec louvres incorporate internal drainage channels and rain baffles that effectively stop water even in driving rain conditions.

Material selection is important for external louvres — extruded aluminium with marine-grade powder coating is standard for Sydney's coastal conditions. Stainless steel options are available for particularly aggressive environments.

Applications

Common Installations

Plant Rooms

Fresh air intake and exhaust on mechanical plant rooms at ground or roof level.

Basement Car Parks

Natural and mechanical ventilation openings on external walls.

Building Facades

Architectural louvres that integrate into cladding systems.

Rooftop Equipment Screens

Combined visual screening and ventilation for rooftop plant.

Utility Areas

Kitchen exhaust, bathroom exhaust, and subfloor ventilation outlets.

Diamond Air Solutions

Ready to install a weatherproof louvre?

Our team handles everything from design and supply to installation and commissioning across Greater Sydney.

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