{"id":17271,"date":"2026-10-29T15:59:17","date_gmt":"2026-10-29T14:59:17","guid":{"rendered":"https:\/\/ventsystems.de\/lexikon\/rauchabzugsflaeche\/"},"modified":"2026-10-29T15:59:17","modified_gmt":"2026-10-29T14:59:17","slug":"rauchabzugsflaeche","status":"publish","type":"page","link":"https:\/\/ventsystems.de\/en\/lexikon\/rauchabzugsflaeche\/","title":{"rendered":"Smoke vent area"},"content":{"rendered":"<p class=\"wp-block-paragraph\">The <strong>Smoke vent area<\/strong> is the opening area through which smoke and hot gases escape from a building in the event of fire \u2013 for example opened windows, rooflights or flaps.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Geometric and aerodynamically effective area<\/h2>\n\n\n<p class=\"wp-block-paragraph\">The geometric area is the pure opening in the frame. What usually matters for planning is the <strong>aerodynamically effective area<\/strong>: it takes into account that sashes, opening angle and installation situation slow down the air flow. For tested smoke vents (NSHEV) it is determined in the test procedure.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Who determines the area?<\/h2>\n\n\n<p class=\"wp-block-paragraph\">How large the smoke vent area must be follows from the fire safety concept and the requirements of the building regulations \u2013 determined by planners and fire safety experts. Vent Systems supplies actuators for daily ventilation; there is no test certificate according to DIN EN 12101-2 for these actuators.<\/p>\n\n\n<p class=\"wp-block-paragraph\">Learn more: <a href=\"\/en\/dictionary\/nrwg\/\">NRWG<\/a> \u00b7 <a href=\"\/en\/what-is-an-rwa-system-abbreviation-function-and-design\/\">What is a smoke and heat exhaust ventilation system (SHEVS)?<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Die Rauchabzugsfl\u00e4che ist die \u00d6ffnungsfl\u00e4che, \u00fcber die im Brandfall Rauch und hei\u00dfe Gase aus einem Geb\u00e4ude abziehen \u2013 etwa ge\u00f6ffnete Fenster, Lichtkuppeln oder Klappen. Geometrische und aerodynamisch wirksame Fl\u00e4che Die geometrische Fl\u00e4che ist die reine \u00d6ffnung im Rahmen. Entscheidend f\u00fcr die Planung ist meist die aerodynamisch wirksame Fl\u00e4che: Sie ber\u00fccksichtigt, dass Fl\u00fcgel, \u00d6ffnungswinkel und Einbausituation [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":16230,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-17271","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/pages\/17271","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/comments?post=17271"}],"version-history":[{"count":0,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/pages\/17271\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/pages\/16230"}],"wp:attachment":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/media?parent=17271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}