Sealing the sound
Jason Hird, a member of the Middle East Acoustic Society (MEAS), explains how penetrations in the plasterboard lining could compromise the integrity of the acoustic performance
Acoustic walls and partition systems in any structure require thorough discussion and precise design by architects and engineers, for effective sound control. In many cases, contractors fail to follow basic rules, which results in a downgraded acoustic performance.
Jason Hird, Senior Technical Development Manager for dry wall specialist at Gyproc Middle East, and a member of the Middle East Acoustic Society (MEAS), highlighted the problem of having penetrations in the plasterboard lining and how it could be resolved.
Hird said that plasterboard lining is often penetrated with electrical socket boxes, light switches and access panels, which if not correctly detailed, does not give an effective sound insulation. Citing the example of penetration by electrical socket box, he said, that the “cut-outs must be designed to minimise gaps and (must also have) a plasterboard backing, equal to that of the original lining, installed as a pattress behind each box” to prevent loss of sound. He advised that the installation should be further acoustically sealed with a suitable sealant.