Whisper reduces noise by using a unique acoustic PVB (Polyvinyl Butyral) interlayer, which incorporates a dampening core between two panes of glass. This core acts to prevent vibration and eliminate the coincidence dip. Isolating noise problems to be targeted with acoustic glazing can be difficult. The process of designing for noise reduction requires measuring the intensity and nature of the target sound, as well as measuring the desired internal sound level of a building in order to achieve a target decibel reduction. As this may not always be possible, the chart below provides a guide towards which Whisper thickness is suitable for a range of common applications.
In high level external noise situations, Whisper should be combined in a double glazed makeup with a differing glass thickness to achieve ultimate sound reduction. Customers are strongly advised to combine Whisper Acoustic Glass with a framing system and seals designed for acoustic glazing, while ensuring wall and ceiling cavities are sufficiently insulated against sound penetration. For further information on specific acoustic requirements, and which Whisper laminate product is best suited to your project please contact us.