Walls that have an Impact Sound Insulation requirement are defined in the BCA as walls that do not have any rigid mechanical connection between two separate leaves except at the perimeter. Discontinuous Construction is defined in the BCA as walls that have a gap of at least 20mm between two separate leaves. Double stud plasterboard walls connected only at the perimeter are classed as ‘discontinuous’.
"The whole strata community owes a huge debt of gratitude to you and the OCN executive. Much appreciated."