NOISE INSULATION


Hi,
Recently I had new Double Glazing Units fitted along with new Plastic Cladding. The Double Glazing was installed by a specialist company and the Cladding by a specialist roofing/cladding contractor.
On the exterior there were Boards(Roughly 5'x5'), made from 1/4 - 1/2" compressed composite material, which were removed and replaced with cladding. Since then we have suffered from extreme noise from traffic passing on a nearby road. I had thought initially that the problem lay with the DG units but have now come to the conclusion that it has been the removal of the boards that have caused the noise problem.
I now realise it was a mistake to replace the Boards with Plastic Cladding but the Contractor did not advise me to fit anything under the Cladding which replaced the Boards. I now realise the Boards had very effective sound reduction qualities but that's in the past and I now must move on.
I am looking for a suitable material to fill a 75mm space which is behind(between) Exterior Plastic Cladding and Interior Plasterboard (which has a Tinfoil finish on the side which faces out to the Cladding).
I need a product that will give good SOUND INSULATION. I have good access to the spaces as the Cladding can be removed for the task. Can anyone suggest a suitable product that can be used that would be suitable for this project and that will give good SOUND Insulation?If it also gave some Heat insulation that would also be useful. Hoping you can help. Mikie
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snipped-for-privacy@HOTMAIL.COM wrote:

I've seen only one new house built this way i.e. without any kind of wood or other 'sheathing' In other words with no outer wall of wood boards/planks, plywood or at least strand-board etc. nailed to the uprights. Two inches of insulating board nailed to the uprights was used instead of wood and then plastic vinyl siding applied over that. Also metal diagonals were used within each wall to ensure sufficient structural strength. The six inch void (behind the half inch plasterboard) was also filled with fibreglass insulating batts. It looked very warm and should be quiet. But I was surprised that it met construction codes! Assuming your house is standard wood framed house; are you saying the contractor removed all the wooden boards from the outside of your house structure? And then attached plastic siding directly to the framing? Did they reuse the boards somewhere else? Find your posting really puzzling!
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