Double track with two curtains and an air gap between them: 4 h rated, average back-face rise no more than 52 °C and low smoke leakage — for atria and large retail compartments.
Key features
4 h ratedDouble track52 °C rise
Common specifications
Fire rating
4 h
Structure
Double track, twin curtains, air gap
Back-face rise
Average ≤ 52 °C
Smoke leakage
≤ 0.05 m³/(m²·min)
Curtain
Alumino-silicate cloth + coating
The above are common specifications; final details are confirmed per project. Drawings accepted.
