PRANCE metalwork is a leading manufacturer of metal ceiling and facade systems.
What acoustic benefits does an aluminium perforated ceiling offer in offices?
Open-plan offices often suffer from excessive reverberation, distracting noise, and compromised speech privacy. Aluminium perforated ceilings address these challenges by combining a visually sleek finish with significant acoustic performance. Small, precision-punched holes—typically 1.5–3 mm in diameter with a perforation ratio up to 25%—allow sound waves to pass through the panel into absorptive materials installed above, such as glass wool or mineral fiber mats. The result is a reduction in reverberation time (RT60) by up to 50%, improving speech intelligibility and lowering ambient noise levels.
Beyond hole size and distribution, acoustic efficiency depends on the backing assembly. A common approach uses a perforated facing bonded to a non-woven acoustic fleece, delivering a sound absorption coefficient (αw) between 0.6 and 0.9 in the 500–2000 Hz range—ideal for human speech frequencies. The aluminium substrate maintains its structural integrity and clean lines, resisting sagging or discoloration over time.
Maintenance is hassle-free: panels lift out for easy access to plenum spaces and can be wiped clean without affecting perforation quality. Moreover, the use of fire-rated acoustic backing ensures compliance with local building codes. By specifying an aluminium perforated ceiling, designers achieve a refined office aesthetic while creating a healthier, more productive acoustic environment.