Requirements in Finland for reverberation time of stair enclosures in residential buildings is maximum 1.3 seconds. We recommend the same reverberation time for other kind of buildings at frequencies between 500 – 4000 Hz. 

Possible vandalism, fire safety requirements as well as humidity and temperature changes on the ground floor have to be considered during the acoustic design.

Acoustic solution, schoolsAcoustic slabs will be installed ceilings of landings. On the top floor the whole ceiling surface should be covered with acoustic material. Acoustic linings can also be installed below each step-ladder unit.

Recommended products: PARAFON Classic, PARAFON Nordic, PARAFON Exclusive, PARAFON Royal

 




Corridors

We recommend a reverberation time of 1.0 seconds at frequencies between 250 – 4000 Hz. When designing suspended ceilings, include access to installations above the ceiling. Corridors are escape routes in fires, so they have to be designed with non-combustible materials. In many buildings vandalism is also a significant risk, so the materials have to be durable. 

Acoustic solution, corridorInstall acoustic slabs along the entire ceiling surface. Reduce sound reflections between the walls with wall acoustics.

Recommended products: PARAFON Classic, PARAFON Nordic, PARAFON Exclusive, PARAFON Corrido