In building‑regulation provisions, the term “opening for smoke extraction” has, in recent years, almost completely replaced the previously common term “geometric exhaust area,” including in tender documents.
Unlike smoke and heat exhaust devices in accordance with DIN EN 12101‑2, which are measured in a wind tunnel, the area of openings for smoke extraction must be determined geometrically. This can be done either directly at the opening on site or on the basis of drawings, taking the installation c ...
