Problem: Floating floor not providing expected noise reduction
Cause: Floor contacting structure at edges
Solutions:
- Stop the floating floor from touching the walls at the edges as shown in Figure 13.
Figure 13 - Floating Floor Distance From Edges
Cause: Nails or screws penetrating the resilient layer to contact the subfloor or joists.
Solutions:
- Remove all nails or screws that are too long. Design the floor so that the top layer can truly "float" and does not need to be nailed to the subfloor.
Cause: Concrete lumps or debris under the floating slab compress the resilient layer so much that it becomes hard and transmits sound.
Solutions:
- Be sure that the subfloor is level and free of debris before laying the resilient blanket.