Acoustic ceiling sails

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Ceiling absorber

Ceiling absorber with diffuser

vertical ceiling sails

Acoustic ceiling sails are sound absorbers mounted on the ceiling , which suppress reflected sound and thus contribute to improving the acoustics in rooms. They are used in recording studios, concert halls and increasingly also in conference rooms.

description

Ceiling sails can be made of various acoustically effective materials (rock wool, glass wool, polyester, textiles, wood or plaster). These acoustically effective materials should reduce the room reflections . In rooms where there is a lot of talk (education, offices, restaurants, etc.), absorbers should be used that have the most effect in the speech range (120 Hz to 4 kHz).

Fire protection regulations that apply in the respective country and city must also be observed (DIN, VDI, VKF, British Standards).

Since the ceiling is a mostly unused area, there is great potential for acoustic optimization. On the way to the ceiling and back, the sound waves pass through the absorbers twice, making them twice. High-frequency components that are reflected sometimes move back and forth between the absorber and the ceiling several times, thereby weakening their amplitude more strongly.

Absorbers can be an essential measure for compliance with noise limits in offices.

Fire behavior

Different materials also show different behavior in fire.

Fire behavior

1. non-flammable
2. hardly combustible
3. flammable

material
Glass wool	1
Rock wool	1
polyester	2
Wood	2
plaster	1

installation

Acoustic ceiling sails can be attached to the ceiling using various fittings and grids. The building authority regulations are to be observed.

The distance between the absorber and the ceiling is to be dimensioned so that it is at the point of maximum sound velocity , at approx. 1/4 of the wavelength to be treated.

Web links

Commons : Sound absorbers  - collection of images, videos and audio files

Individual evidence

1. ↑ Planning of rooms. DEGA Academy Room Acoustics and Public Address, 2012, accessed in 2020 . 
2. ↑ Auri Akustik - engineering office for room acoustics, Dr.-Ing. Benedict Kohout. Retrieved July 7, 2020 . 
3. ↑ General recommendations. DEGA Akustik, March 2006, accessed July 2020 .