Our range of Light Reduction / Opaque Drapery Fabric offers an array of print designs and plain colour options to satisfy the most exacting demands in aesthetics and functionality. These fabrics offer the look and feel of soft drape whilst their technology offers functionality as both light reduction and acoustic control, delivering an outstanding Noise Reduction Coefficient rating between 0.58 and 0.71.
To quantify our fabrics as commercial acoustic solutions, each is tested and awarded an NRC (Noise Reduction Coefficient) rating.The NRC relates to the absorption effectiveness of the material, and is calculated by averaging how absorptive a material is at 4 different frequencies: 250hz, 500hz, 1000hz and 2000hz.Taking this average number, it is then applied it to the NRC scale of 0 to 1.
A perfectly sound absorptive material achieves a 1, whereas a 0 indicates no absorption.
With the fabric positioned approximately 15 to 20cm from the window or wall, researchers found that it could absorb up to five times as much sound as a typical lightweight fabric. At low frequencies, around 200hz, it absorbed no more than about a fifth of the incidental sound energy. However, at frequencies of about 500hz (human ears have a maximum sensitivity between about 3000-4000hz), the fabric absorbed about three quarters of the incidental sound energy.
Not looking for Light Reduction / Opaque Fabric? View our Hush Acoustics – Sheer Drapery & Sheer Blind Fabric
Hush Acoustics – Light Reduction / Opaque Drapery Fabric