Sound Absorbers - Wall
Fabric Covered Sound Absorbent Wall Treatment
A high performance acoustic wall treatment that can be installed as a continuous system, to
cover part or complete walls, as well as affording the alternative of individual feature panels. Typically used to
minimise the effects of undesirable sound reflections and hence lower reverberation time (RT) in various environments
such as music practice rooms, recording and broadcast studios, sports and community halls, schools, conference
facilities, as well as many other applications throughout commerce and industry.
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Description
Panels are nominally 25mm thick manufactured from resin bonded glass fibre, specially tooled and pressed to afford
maximum sound absorption. A fabric covering provides a decorative, high quality finish. A wide range of colours can be
provided with samples available on request.
Continuous Treatments
Panels can be installed using one of two possible methods. The first utilises standard size panels 1200mm wide x
2700mm high faced with fabric to leave untreated edges. The panels are cut to fit on site and lightly bonded to the
walls and secured at the periphery with a white, two part, upvc trim. A white upvc tee joint is used to mask the
untreated/site cut vertical panel joints. The second system is similar but the fabric is wrapped around the vertical
edges during manufacture, thus providing a neat, crisp butt joint, negating the need for a upvc tee. Site cutting with
this alternative is restricted to height adjustment and fitting into corners. Both systems afford a high degree of
flexibility during installation.
Alternative Trims
Fabricated trims covered with fabric to match the panels can also be offered.
Individual Panels
Where it is either unnecessary or undesirable to cover entire wall surfaces individual panels can be provided, pre-
manufactured in any size to suit. The panel edges are reinforced and the fabric is wrapped around all four edges. This
not only allows installation as separate feature panels but also permits the creation of ‘banks’ or ‘runs’ of panels
with a shadow joint between.
Acoustic Performance
The panels provide the following sound absorption coefficients.
| Frequency(Hz) | 125 | 250 | 500 | 1K | 2K | 4K |
| Coefficient | 0.16 | 0.50 | 1.0 | 1.08 | 1.07 | 1.0 |
Weight
A standard 1200mm x 2700mm x 25mm thick weighs 9.72kg, which equates to 3.0kg/m³.
Fire Resistance
The glass fibre panel core meets the requirements of BS476:Part 6:1981 and Part 7:1987 Class 0, whilst the standard
fabric and upvc trims achieve BS476:Part 7:1987 Class 1. The upvc has a softening limit of 60° C.
Product Maintenance
Under no circumstances should water be used to high pressure clean or saturate/soak the absorbers. Periodic use of a
vacuum cleaner, or careful use of a soft brush, is recommended for removal of light dust. Stains can sometimes be
treated with a non-solvent based cleaning solution but care should be exercised and if possible tested on a small area
first.
