Technical Booklet G Resistance to the Passage of Sound·Page 23·1.38, 1.39
Remedial Treatment Requirements
Remedial treatment must be appropriate to the cause of failure, with reference available in BRE Information Paper IP 14/02. Treatment may be needed in untested rooms if failure is attributed to the separating or flanking elements.
Appropriate remedial treatment should be applied following a failed set of tests. It is essential that remedial work is appropriate to the cause of failure. Guidance is available in BRE Information Paper IP 14/02.
Where the cause of failure is attributed to the construction of the separating and/or associated flanking elements, other rooms that have not been tested may also fail to meet the performance standards. Therefore, remedial treatment may be needed in rooms other than those in which the tests were conducted.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/regional/Technical Booklet G - Resistance to the Passage of Sound.pdf