Fire Smoke Exhaust Skylight plays a critical role in the building fire protection system. Its installation location is closely related to the building layout, which directly affects the smoke exhaust effect and the overall fire safety of the building.
First of all, from the perspective of building functional zoning, different functional areas have different fire hazards and smoke diffusion characteristics. For example, in commercial buildings, shopping areas with dense crowds and cargo storage areas have different requirements. In shopping areas, where there is a large flow of people, smoke exhaust skylights should be installed above the evacuation passages and the top of public activity areas to ensure that smoke can be discharged in time when a fire occurs, creating a clear line of sight and a safe air environment for people to escape. In cargo storage areas, especially warehouses where flammable items are stored, smoke exhaust skylights should be evenly distributed above the passages between shelves to effectively exhaust the thick smoke generated by the fire, prevent smoke accumulation from causing the fire to spread rapidly, and avoid excessive smoke damage to the goods.
Secondly, the height and number of floors of the building also restrict the installation location of Fire Smoke Exhaust Skylight. For high-rise buildings, due to the rising characteristics of smoke, smoke exhaust skylights are generally installed on the top of the building or on floors near the top. However, in super high-rise buildings, it is also necessary to consider setting up the smoke exhaust system in sections, and accordingly reasonably arrange the smoke exhaust skylights at different height sections to meet the smoke exhaust needs of fires on different floors, so as to avoid reducing the smoke exhaust efficiency due to the long smoke exhaust distance. For multi-story buildings, smoke exhaust skylights can be arranged at appropriate locations on the roof according to the size of the single-story area and the uniformity of the layout to ensure that all areas can be effectively covered by smoke exhaust.
In addition, the orientation of the building and the surrounding environment also have an impact on the installation location. If there are other buildings or obstacles around the building, the smoke exhaust skylight should be avoided from being installed in a location that is easily blocked to prevent smoke exhaust from being blocked. For example, for buildings located on both sides of narrow streets in the city center, smoke exhaust skylights should be installed preferentially on the roof area facing away from adjacent buildings or facing open spaces. At the same time, considering the local dominant wind direction, the installation location of the smoke exhaust skylight can be appropriately biased towards the downwind direction, so that the wind can be used to more efficiently exhaust smoke and improve the smoke exhaust effect.
Finally, the structural layout inside the building, such as atriums and corridors, is also an important factor in determining the installation location of the smoke exhaust skylight. As a large shared space inside a building, the atrium is often the key area where smoke gathers and spreads during a fire. Smoke exhaust skylights should be installed at the top center of the atrium or evenly distributed along the perimeter to achieve effective control of smoke in the atrium. For narrow spaces such as corridors, smoke exhaust skylights can be installed at the top of both ends of the corridor or set at a certain distance, working in conjunction with the corridor's ventilation system to guide the orderly discharge of smoke and ensure that the safe passage for personnel evacuation is unobstructed. In short, the installation location of the Fire Smoke Exhaust Skylight needs to comprehensively consider the various layout factors of the building in order to maximize the smoke exhaust efficiency when a fire occurs and protect the lives and property of people in the building.
