Soundproof a Room Stage4 Part1

The floor and walls of the inner room can easily be isolated from the concrete garage floor by putting down a 25mm (1") layer of polystyrene sheet. Despite being polystyrene, this material is very strong in compression. It will provide very good thermal insulation, but more importantly, it will for prevent vibration from being transmitted from the walls down into the floor and therefore into the main structure of the building..

Drummer Soundproof Room Building Stage4 Part1

Polystyrene sheeting laid on the floor

Lay floor chipboard flooring
The floor is made from regular toungue-in-groove chipboard that is laid in place. It was not fixed to either the surrounding walls or floor. The floor will be held in place by the stud wall that was put up next.

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