HOW TO SOUNDPROOF A WINDOW

Basic instructions on how to soundproof a window

The most effective way to soundproof a window is using secondary glazing (See left). A sealed air gap between the first pane and the second pane and gives very good results and will more than halve the amount of noise. If triple glazing can be considered then this will be even better and for maximum results, different thicknesses of window glass should be used for each pane and they should be installed at irregular spacings.

If possible, the middle pane of the window should be installed at an angle. Ventilation would not normally be possible with a triple glazed system but this system is ideal for studios or sound recording rooms.

If you are looking for a temporary solution or do not wish to install additional glazing to your window then a removable window plug can be constructed using our sound insulating materials.

PLEASE NOTE THAT A PLUG WILL REMOVE ALL NATURAL DAYLIGHT FROM THE ROOM WHEN IN POSITION.

You will need a combination of a barrier product and a sound absorbing material to reduce the external sound coming through the window. The best way to achieve this is to use suitably sized MDF of a size that fits neatly within the window frame. The side of the board that faces the window should be lined with a sound absorbing material such as film faced acoustic foam. For best results, this ‘plug’ should be fitted into the window reveal so that it forms an airtight seal so other methods of ventilation may be required when in place.

Instructions

1) Add two battens to the top and bottom of the inside of the window recessed as shown in the illustration.

2) Fix acoustic foam to the top and bottom of the window sill

3) Fix acoustic foam to the mdf board and ensure when it's butted up against the battens it provides a snug fit.

4) Improve the performance if necessary by increasing the thickness of the sound absorbing foam.

The plug is then held in place using tension latches.