The impact of noise transmission through mullion profiles is impossible to ignore. Siderise MC Mullion Cover is a decorative mullion treatment designed to provide a simple yet robust solution for ...

To remedy this, cover your walls with materials that have a noise reduction rating (called NRC, or noise reduction coefficient) of 0.85 or above, Boughan says.

Finding a quiet place to work or relax doesn’t have to mean going to a spa or installing heavy-duty insulation. Thanks to a new material, simply closing the curtains could do the trick.