ATIS Slit Awning Window

TOSTEM ATIS Slit Awning Window is engineered for natural ventilation with privacy and rain protection in mind. Its unique high-placed narrow opening allows continuous airflow even during heavy rain, making it ideal for staircases, bathrooms, and narrow spaces. The sleek concealed design and advanced sealing system ensure durability, energy efficiency, and safety.

Key Features
High-mounted slit design for rainproof ventilation

Slim-profile aluminium frame with concealed hardware

Smart insect screen with 40% thinner mesh and tighter weave

Safety stopper and PSS balance hardware for secure usage

Seamless design that matches other ATIS windows

Ideal for modern residential and mid-rise developments

Specifications
Parameter Value
Frame Depth 88 mm
Glass Thickness 5–8 mm (Single), up to 22 mm (IGU)
Available Colors White, Silver, Grey, Black, Brown
Sash Type Fixed with outward opening
System Series ATIS

Performance Ratings
Performance Type Rating
Wind Resistance Up to 2,000 Pa (ASTM E330)
Water Tightness Up to 300 Pa (ASTM E331)
Air Permeability 10.7 m³/h·m² (ASTM E283)
Acoustic Insulation ~25 dB (JIS T-1)