Technical Booklet G Resistance to the Passage of Sound·Page 120·B2.14
Soft floor covering removal or exposure
If a soft covering has been installed on other floor types, it should be removed; if removal is not possible, at least half the floor should be exposed for testing.
If a soft covering has been installed on any other type of floor, it should be taken up. If that is not possible, at least half of the floor should be exposed and the tapping machine should be placed only on the exposed part of the floor.
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