The droop height of the smoke barrier is as follows:
1. The effective descending height of the smoke barrier should not be less than 500mm.
2. The width of a single section of the roller shutter type smoke barrier wall should not be greater than 6000mm.
3. The width of a single section of the flap-type smoke barrier wall should not be greater than 2400mm.
4. The roller-type smoke-shielding vertical wall should be no less than 100mm, and the flap-type smoke-shielding vertical wall should be no less than 20mm.
5. In addition, a minimum distance should be maintained between the edge of the smoke barrier and the surface of the building structure. This distance should not be greater than 20mm.
The professional English name for smoke barriers is Smoke barriers. As early as 2005, the relevant national departments issued the normative document Smoke Barrier GA533-2012, which strictly stipulates the classification, code, specifications, general requirements, test methods, inspection rules, etc. of the smoke barrier. This standard applies to Smoke-proof vertical walls are used in smoke-proof partitions in industrial and civil buildings.
The smoke barrier is made of non-combustible materials and installed vertically under the building's ceiling, beams or suspended ceilings. It is a smoke barrier that can form a certain smoke storage space in the event of a fire. Setting up smoke-proof vertical walls is the main measure to divide smoke-proof zones. The smoke barrier, structural beams and partition walls form a smoke storage bin where fire smoke accumulates. In the event of a fire, the smoke in the smoke storage bin is removed through the smoke exhaust system.