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Bespoke window reveal liners, generally used in studio or secondary glazing applications when the space between glass is at least 100mm.
Prosonic sound absorbing acoustic window reveal liners provide sound absorption between spaced glass windows. They are a decorative and robust reveal liner for use in secondary glazing systems or recording studios with deep cavities.
The 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 as long as the depth is adequate.
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.
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.
With no perforated metal facing the acoustic core can be 100 percent efficient.
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. The side sections would usually be installed after the top section as they add further support to the top edges. When measuring up for lengths, the thickness of the liner needs to be taken into account – as that reduces the side lengths if they sit ontop/underneath the top and bottom sections (or vice-versa).
Please Note: if any of the vertical sections are trapezoidal then we will need a DXF file to be supplied.
| Absorption Coefficients | |||||||
| Material / Hz | 125 | 250 | 500 | 1k | 2k | 4k | NRC |
| 25mm | 0.10 | 0.40 | 0.90 | 1.00 | 1.00 | 1.00 | 0.85 |
| 40mm | 0.20 | 0.60 | 1.00 | 1.00 | 1.00 | 1.00 | 0.95 |
We have a short blog article about window soundproofing which can be read here.
