Technical Booklet G Resistance to the Passage of Sound·Page 101·5.10
Effect of open stairs on floor sound insulation
If the stair is not enclosed, the potential sound insulation of the internal floor will not be fully achieved, but the internal floor should still satisfy Part G requirements.
If the stair is not enclosed, then the potential sound insulation of the internal floor will not be achieved; nevertheless, the internal floor should still satisfy Part G.
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