How do I make a window plug to soundproof my window?

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For a window as large as yours weight of a plug may be a problem so we suggest you use ply or MDF of suitable thickness to be stable and cut it to be a loose fit in the window reveal. Then stick our self-adhesive 25mm film faced SA25FFSA sound absorbing foam to the panel so that it is slightly larger than the supporting panel. This will enable the plug to be a tight fit in the window reveal and will help reduce noise nuisance from outside.

With a couple of handles fitted to the panel it will easily be used to insertand remove from the window whenever required.

More information and current prices for our sound absorbing foam can be viewed on our web site www.soundservice.co.uk and we have an article all about window soundproofing here http://www.keepitquiet.co.uk/basic_wi...

If you want a lighter plug I suggest you still use a base board of either MDF or ply but face one side of it with our 25mm, black very tough film faced sound absorbing foam. Our reference SA25FFSA. This can be supplied self-adhesive and has negligible weight whereas the normal sound insulation weighs 5kg/m2 in addition to the weight of the panel. If the panel is made slightly smaller than the window aperture and the foam slightly larger, the plug will be a tight fit when installed. Some adjustment may be necessary to get it absolutely right. When installing the plug, it is important to ensure the foam is facing the window for best results. SA25FFSA is fire resistant to normal furniture standards but if a totally non-flammable product is required this would have to be our SA25FRSA but is not currently available with film facing.

I have a similar problem - but MDF or ply is far too heavy for an easy to use solution. There must be a lighter material available to stick the foam to surely?

The reason we suggest MDF or Plywood is that it offers good sound absorption properties. If the plug is installed correctly and held in place as we suggest then there should not be any problems.

Hello, I have a sash window in my room which has a relatively shallow recess so I don't think a plug as described above is really feasible. However, what if I created a plug of the same design that was 4' x 3'9'', rest it on the window sill, completely sealing the window, and then using some kind of heavy beam leant against it applying pressure to keep the seal?

My reason for wanting to sound proof my window is that I would like to record audiobooks at home, but I'm unable to go as far as installing a complete home studio. I'm on a quiet street, and the room I record in is on the 3rd floor facing away from the road, so it's generally only when aeroplanes come in to land at Heathrow that I get background noise on my recording. I've found that by stacking the large cushions from the sofa against the window, forming a crude example of my above suggestion, it has a noticeable effect. Though it isn't very practical as an ongoing solution and doesn't quite dampen the sound enough. I'm therefore not looking for something that will eliminate a pneumatic drill right outside my window, so I'm hoping this or something similar will be just what I need.

As I'm subletting the room altering the window fixture isn't really a practical option.

I've attached a picture of the window just in case it's of use.



Thanks.

We see no reason why your suggestion will not work but you have to bear in mind that a solid board will be required to support the sound absorbing foam that should be sandwiched between the window and the board and that a tight seal is achieved around the perimeter.