Archway School, Stroud

SAS International installed different types of acoustic attenuators to meet a sound attenuation rating of RW3/RW5.

Key features




Archway School


B3 Burgess

Main contractor

HBG Construction


Optimum Dry Wall Systems, SAS Project Management

Completion year


System type

Service Bulkheads

Area M2

Ground Floor: 40.5Lm (Cross Talk Attens) First Floor: 23 Lm (Cross Talk Attens)


United Kingdom

Product Groups

Archway School, Stroud, demanded an excellent acoustic solution for their new development. Multi-disciplinary practice B3 Burgess specified SAS acoustic attenuators for the scheme; a two-storey open plan, naturally ventilated space.

A new build scheme, comprising technology and entrance blocks totalling 2,715sqm for the provision of ICT suites, offices and a recording studio, acoustic levels were a key consideration. For the project a sound attenuation rating of RW3/RW5 was stipulated.

The SAS International metalwork solution involved the design and installation of different types of acoustic attenuators. The acoustic characteristics of open plan spaces do not follow normal rules for regular proportioned rooms. A totally different approach was required to meet acoustic demands. SAS International worked closely with B3 Burgess to achieve this.

For the ground floor space the attenuators were placed horizontally across the tops of classroom partitions and underneath balustrading. On the first floor cross-talk attenuators featured a double ‘V’ shaped design to accommodate a pitched rib deck soffit joining both sides of the partition.

In other areas on the first floor a single-side soffit cladding panel on one side of the ‘V’ has also been used. All merged out on to the atrium and created a clean integration between horizontal and vertical planes, and on the first floor a neat and aesthetic finish against the pitch of the building’s roof.

The SAS International acoustic attenuation solution for Archway School represented a series of acoustic baffles suspended vertically, providing acoustic absorption. These can be manufactured for all applications from commercial offices to large open atria. For this project they were used in conjunction with metal bulkheads as a means of linking the appropriate building elements.

Eliminating sound reflection from walls is particularly important for productive educational environments and acoustic wall panels are now commonly being used in halls and open atrium spaces, as well as classroom environments.

Perforations and acoustic pads can be used to ensure good sound absorption and reduce reverberation – combinations of plain sound reflecting tiles and perforated sound absorbing panels can be used to create the preferred acoustic environment, as the case in this installation.

SAS International’s architectural metalwork solutions provide a durable option for educational establishments and offer a sustainable solution in terms of whole life cycle costs and reducing maintenance costs by being resilient to accidental or malicious damage.

Systems used