CONSISTENT ACOUSTIC PERFORMANCE FOR RESIDENTIAL DEVELOPMENTS

INTRODUCTION

The Marsiling Peak I & II development in Woodlands is part of Singapore’s ongoing public housing programme by the Housing & Development Board (HDB), aimed at creating comfortable, efficient, and sustainable living environments for residents.

As a large-scale, high-density residential project, it required an internal wall insulation system that could enhance consistent acoustic comfort while meeting strict installation standards and supporting efficient site operations. With tight construction timelines and a significant volume of partition walls, the contractor sought an insulation solution that could improve installation productivity, minimise off-cut waste, and contribute meaningfully to the project’s sustainability goals

The challenge?

A key challenge in a project of this scale was maintaining installation efficiency while ensuring consistent acoustic performance across the development. The high-density residential layout of Marsiling Peak I & II required each partition to reliably achieve a minimum STC 45 acoustic rating.

This placed additional emphasis on the accuracy, uniformity, and quality control of insulation placement across all units. Ensuring consistent cavity coverage and acoustic performance under such demanding site conditions represented a significant operational and technical challenge for the project team.

The Knauf Insulation Internal Partition Folded Batt 50mm x 16kg/m³ was specified for the acoustic wall insulation as part of the Knauf internal wall system. Pre-cut to meet standard wall heights in Singapore, the Partition Folded Batt is designed to fit directly into the metal stud cavity as a single batt, eliminating the need for measuring or trimming on site.

As part of the integrated Knauf Internal Partition wall system, the insulation works in tandem with Knauf Gypsum components, giving contractors a coordinated solution supported by clear technical documentation and on-site guidance. This approach streamlines installation, reduces off-cut waste, and contributes to more consistent, cleaner work sites. The compression-packed, folded format further improves logistics by simplifying transport and handling across multiple floors. When installed together with Knauf Gypsum 19mm ImpactStop Board (HD), the friction-fit batt maintains continuous cavity coverage, supporting the acoustic requirements of the project, including the minimum STC 45 performance target

This project highlights how integrated insulation systems can play a meaningful role in supporting sustainable construction practices by minimising material wastage, improving logical efficiency, and enabling more controlled, repeatable installation across large-scale HDB developments.

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