Custom Audio Designs Ltd 

Acoustic Absorbers | Sound Absorbers | Acoustic Panels | Absorption Tiles


acoustic window reveal linersacoustic window reveal linersacoustic window reveal linersacoustic window reveal linersacoustic window reveal liners



Sound absorbing acoustic window reveal liners


Custom Audio Designs WRL sound absorbing acoustic window reveal liner system is a decorative and robust reveal liner for use in secondary glazing systems.

The WRL Window Reveal Liner provides a practical means of improving the sound insulation performance of secondary or tertiary glazed windows. Typically improvements of 2-4dB can be achieved using acoustic window reveal liners.

Their application to the reveals substantially reduces the reverberant sound field in the void formed between the primary and secondary glazing.
Traditionally reveal liners have been formed, on-site, by cutting strips of material such as ceiling tiles. Not only does this present numerous practical problems and present a poor visual finish but acoustically they were extremely inefficient.

Description


Type 1: Main Benefits

  • Superior sound absorption properties
  • Unaffected by moisture or UV
  • Supplied to exact dimensions
  • Wide colour range
  • More suited to internal studio windows and low UV
  • Maintenance free
  • Simple to fix

An absorptive core of rigid acoustic fibreglass with hardened edges fabric wrapped around all the sides and top.

The acoustic core is faced with an acoustically transparent fabric. The full colour range can be seen here.

With no perforated metal facing the acoustic core can be 100 percent efficient.

Installation

These types are very lightweight and are generally friction fitted and held with adhesive. In some cases mechanical fixings, or angled sections, are required especially if the reveal is not uniform in width.

ABSORPTION COEFFICIENTS
Material / Hz1252505001K2K4KNRC
25mm0.140.240.691.001.000.920.73
50mm0.290.761.001.001.000.950.94

Type 2: Main Benefits:

  • Good sound absorption
  • Unaffected by moisture or UV
  • Supplied to exact dimensions
  • Wide colour range
  • Maintenance free
  • More suited for external windows with high UV
  • Simple to fix


An absorptive core of rigid acoustic fibreglass held with a covering of perforated sheet metal which forms around the sides and top of the core.

The acoustic core is faced with an acoustically transparent non-woven glass fabric to provide anti-dusting characteristics.

The perforated metal covering is usually supplied, as standard, in a white powder coated finish. They can however be finished to any stock PPC RAL colour. They can also be produced using stainless steel or aluminium instead of the standard coated galvanised mild steel. Aluminium versions can be supplied anodised to any of the normally available commercial colours.

Where the end of the installed liner would not normally be hidden, such as at corner junctions or for long reveal butt joints, the metal covering is additionally formed over the end of the liner to provide a neat final appearance.

Sound Absorbing Acoustic Window Reveal Liners

Installation

Perforated metal versions are usually attached directly to the reveals by through fixing using screws with colour matched heads or caps. Alternatively they can be retained at their edges by metal angle sections of a matching finish.

Angle sections are also useful in concealing any variable gap formed between the liner and the frame due to variations in the reveal width.

Acoustic Performance

The sound reduction performance of a secondary glazed window is increased by the application of a sound absorptive material to the reveals. The level of improvement is influenced by a number of factors. The two main significant ones are:

  • The ratio of the treatment area to the total internal surface area of the window void.
  • The sound absorption coefficient of the applied liner.


The sound absorption characteristics of our Window Reveal Liners change with thickness and method of mounting e.g. direct to a solid substrate or suspended above a cavity. The low frequency performance will be increased if there is a cavity space behind the liner.

Typically the improvement in the SRI (Mean Sound Reduction Index) of the window would be in the range 2-4dB.



All information contained in these details is given in good faith but without warranty.
Custom Audio Designs reserves the right to alter the specifications of any product without notice.
©Custom Audio Designs