Technical Booklet G Resistance to the Passage of Sound·Page 37·2.45
Junctions with internal timber floors
Floor joists supported on a type 1 separating wall must be supported on hangers and should not be built in to the wall.
If the floor joists are to be supported on a type 1 separating wall then they should be supported on hangers and should not be built in (see Diagram 2.10).
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