NATURAL DAYLIGHT AND SMOKE EXTRACTION SYSTEMS Lighting, ventilation, smoke extraction and drainage – with us, you can find th ... e complete product range all under one roof. As a developer and producer of skylight domes, flat glass skylights, natural smoke and heat extraction plants as well as roof drains, we are your reliable partner for the design, planning, execution and renovation for all kinds of flat roof objects. You ensure the long-term value of your projects thanks to our first-class quality, professional advice and capable maintenance. read more