SOUNDLAG NL-QGW acoustic pipe lagging – fire retardant noise barrier with quilted glass wool backing Soundlag NL-QGW is a high-performance composite acoustic lagging product consisting of an aluminium foil faced, mass-loaded, flexible vinyl noise barrier laminated to a quilted glass- wool decoupling layer. The product was developed to reduce noise break-out from pipes, valves, fan housings and ductwork in commercial, industrial and domestic buildings. The unique construction of Soundlag NL-QGW combines the superior transmission loss performance of the noise barrier, Wavebar®, with the high absorption properties of the decoupling glass-wool layer Sorberglass.
The decoupling layer breaks the vibrational path between the decoupled mass barrier and the substrate to which it is bonded. This allows the vinyl external wrap to remain flexible at all times, thereby optimising its performance. The tough external aluminium foil facing provides good mechanical protection from dirt, oil and dust and offers a fire resistant covering.
The external barrier wrap, Nonlite (NL), is highly fire retardant with enhanced self-extinguishing properties and low smoke and toxicity characteristics. The decoupling layer is a lightweight 25 mm thick, noncombustible, glass-wool that is quilted (QGW) with a fabric covering to prevent it from shedding irritating fibres and make it easier to handle.
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