KERTO-RIPA SONANS Kerto-Ripa Sonans roofing elements are used to span large open spaces in new buildings as well as renovation projects. Swimming pools, theatres, schools, halls, offices and other commercial or public buildings are created this way. The perforated underside, together with the acoustic insulation, improves the acoustic comfort in the room and provides a warm and clear aesthetic. The perforated Kerto underside has a standard perforation of Ø10mm on a grid of 20x20mm² and is built-up of segments of 2400x595mm. Other dimensions, perforations or even slots are possible. Each panel is delivered with a chamfered edge all the way round, a membrane on the back, and if you wish, a colour on the surface. Fire class B requirement? We offer you a certified solution with a B,s1-d0 fire retardant. ACOUSTICS The perforations in the underside allow a sound absorption coefficient of 0,75 (class C). The exact absorption curve, an example of which is shown below, depends on the chosen design and pattern. Contact us for available reports. Bottom view of a Kerto-Ripa Sonans element 0,0 0,2 0,4 0,6 0,8 1,0 1,2 125 250 500 1000 Frequency f (Hz) 2000 4000 Absorption αs
17 Online Touch Home