A family-owned Bavarian manufacturer of rooflights, continuous rooflights and glass roof systems, with an RWA line built around natural smoke and heat exhaust ventilators certified to DIN EN 12101-2. The CI-System Lichtband B and W/R achieve certified aerodynamic free areas of up to 2.97 square metres under EN 12101-2, and the range extends to REI 30 to REI 90 fire-rated rooflight elements, with roof build-ups conforming to DIN 18234.