Soundproofing requirements

St. Patrick’s Primary School in Pakenham upgraded two of their learning buildings, Block B and Block E. The upgrades included removing some internal partition walls to create open and connected spaces and to optimise the acoustics, such as speech intelligibility, for a superior teaching and learning environment.

Block B had a perforated plasterboard ceiling. Here in the common areas, a unique waveform acoustic baffle was designed and installed on this ceiling using Megasorber FM50 acoustic panels. These waveform baffles created a stunning ceiling finish with superior acoustic performance, and the NRC (Noise Reduction Coefficient) reached 1.0.

In the classroom areas, Megasorber FM25 acoustic panels were direct fixed onto the perforated plasterboard ceiling panels using Megasorber A200 adhesive, to provide superior sound absorption.

Block E also had a perforated plasterboard ceiling. Megasorber FM50 was installed on the walls and ceiling in the common areas.

In the teaching areas, Megasorber FM25 was direct fixed onto the perforated plasterboard to improve sound absorption.

As a result of these upgrades, both buildings now have excellent speech intelligibility, resulting in an enjoyable teaching and learning environment for teachers and students alike.

Products

Megasorber FM50W-RW-DS

50mm acoustic and thermal insulation panels with water-repellent Soundmesh® G8 facing (White) on both sides of the panel.

 

FM50W-RW

 

Megasorber FM50W-RW

50mm acoustic and thermal insulation panels with water-repellent Soundmesh® G8 facing (White)

 

FM50W-RW

 

Megasorber FM25W-RW

25mm acoustic and thermal insulation panels with water-repellent Soundmesh® G8 facing (White)

 

 

Features

Installation

Waveform acoustic panel:

Megasorber FM50W-RW-DS panels were CNC machine cut to shape and installed onto the ceiling using aluminium U channels and Megasorber A200 adhesive.

Megasorber FM50-RW & FM25-RW acoustic panels on the walls & the ceiling:

panels were CNC machine cut to shape and direct fixed with Megasorber A200 adhesive, with an express ‘shadow line’ finish or with a T-channel between panels.

Results

Block B – RT results in the common area under the waveform acoustic panels

The Megasorber Waveform panels effectively reduce the reverberation time at 1000Hz, which is the most sensitive human hearing frequency. These Waveform panels are also very effective at low frequencies, with RT 0.58 seconds at 125 Hz and RT 0.41 at 250 Hz, making this area exceptionally calm and pleasant.

Block E – RT results in the areas treated with & without acoustic panels

The measurement results of Block E treated and untreated areas revealed that the Megasorber FM50 and FM25 acoustic panels effectively reduced the RT. For example, at 1000Hz, the RT is 0.81s in the untreated area and 0.27s in the treated area.

In summary, the measurement results reveal that the Reverberation Time (RT) is well below 0.5 seconds after the installation of Megasorber acoustic panels in both Block B and Block E. Both buildings passed the soundproofing requirements with flying colours, thus providing an excellent teaching and learning environment.

The project

Architect: Brand Architects
Builder: J.R. Pryor Pty Ltd
Location: 136 Princess Hwy, Pakenham, VIC 3810

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St. Patrick’s Primary School

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