On our sitesOffices: treating acoustics through floor and ceiling
Noisy open-plan office, echoing meeting room: carpet tiles and rock wool ceilings are the two most effective levers, and the simplest to implement.
Two noises, two answers
Footfall noise travels into the floor and neighbouring storeys: carpet, with its backing, reduces it (ΔLw rating, often 20 to 30 dB for a felt-backed tile). Room reverberation is treated by absorption: class A rock wool ceilings (αw 0.9 to 1), such as Rockfon Blanka or AMF Thermatex.
Why tiles
50 × 50 cm carpet tiles (DESSO Essence, Rudiments) are laid without permanent adhesive, replaced one by one and give access to the raised floor. Mixing two shades draws circulation routes without partitions.
The demountable ceiling
A ceiling on an exposed 600 × 600 mm grid stays accessible for air conditioning and cabling. Square edges (A) are the most economical; rebated edges (E) make the grid finer. Washable tiles (Rockfon CleanSpace) suit clean rooms.