Every rule your project must meet, found for you.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

tests of insulation against both airborne and impact sound between one pair of rooms (where possible suitable for use as living rooms) on opposite sides of the separating floor; and tests of insulatio

NI-wide·Technical Booklet G Resistance to the Passage of Sound

To conduct a full set of tests, access to at least three flats and maisonettes will be required.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

It is preferable that each set of tests contains individual tests in bedrooms and living rooms.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Where pairs of rooms on either side of the separating element are different (e.g. a bedroom and a study, a living room and a bedroom), at least one of the rooms in one of the pairs should be a bedroom

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Where the layout has only one pair of rooms on opposite sides of the entire area of separating wall or floor between two dwellings or rooms for residential purposes then the number of airborne and imp

NI-wide·Technical Booklet G Resistance to the Passage of Sound

To conduct a set of tests, the sound insulation between the main rooms should be measured according to the principles set out in this section for new buildings and material change of use, but adapting

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Some properties, e.g. loft apartments, may be sold before being fitted out with internal walls and other fixtures and fittings. Measurements of sound insulation should be made between the available sp

NI-wide·Technical Booklet G Resistance to the Passage of Sound

District councils should consult with developers on likely completion times on site, and ask for one set of tests to be carried out between the first dwellings or rooms for residential purposes schedu

NI-wide·Technical Booklet G Resistance to the Passage of Sound

As further properties on a development become ready for testing, district councils should indicate at what point(s) they wish any further set(s) of tests to be conducted. Assuming no tests are failed,

NI-wide·Technical Booklet G Resistance to the Passage of Sound

A set of tests is failed if any of its individual tests of airborne or impact sound insulation do not show sound insulation values equal to or better than those set out in Tables 1a and 1b.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

In the event of a failed set of tests, appropriate remedial treatment should be applied to the rooms that failed the test.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

A failed set of tests raises questions over the sound insulation between other rooms sharing the same separating element in the dwellings or rooms for residential purposes in which the tests were cond

NI-wide·Technical Booklet G Resistance to the Passage of Sound

A failed set of tests raises questions over properties between which tests have not been carried out. The developer should demonstrate to the district council's satisfaction that such properties meet

NI-wide·Technical Booklet G Resistance to the Passage of Sound

After a failed set of tests, the rate of testing should be increased until the district council is satisfied that the problem has been solved.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

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 Pa

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Where remedial treatment has been applied, the district council should be satisfied with its efficacy. Normally this will be assessed through additional sound insulation testing.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

The test report of a set of tests must contain at least the following information, in the order below – (a) Address of the building. (b) Type(s) of property. Use the definitions in Part A of the Build

NI-wide·Technical Booklet G Resistance to the Passage of Sound

results of tests shown in tabular and graphical form for third octave bands according to the relevant part of the BS EN ISO 140 series and BS EN ISO 717 series, including – (a) single-number quantitie

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Section B.2 of this Appendix describes the sound insulation testing procedure approved by the Department. The approved procedure is that set out in Section B.2 and the Standards referred to in that Se

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Section B.3 of this Appendix provides guidance on laboratory testing in connection with achieving compliance with regulation 53 of the Building Regulations, and in connection with evaluation of compon

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Section B.4 of this Appendix gives guidance on test reports.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

The person carrying out the building work should arrange for sound insulation testing to be carried out by a test body with appropriate third party accreditation. Test bodies conducting testing should

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Sound insulation testing for the Building Regulations must be done in accordance with: BS EN ISO 140-4; BS EN ISO 140-7; BS EN ISO 717-1; BS EN ISO 717-2; BS EN 20354. When calculating sound insulatio

NI-wide·Technical Booklet G Resistance to the Passage of Sound

The airborne sound insulation of a separating wall or floor should be measured in accordance with BS EN ISO 140-4. All measurements and calculations should be carried out using one-third octave freque

NI-wide·Technical Booklet G Resistance to the Passage of Sound

For each source position, the average sound pressure level in the source and receiving rooms is measured in one-third octave bands using either fixed microphone positions (and averaging these values o

NI-wide·Technical Booklet G Resistance to the Passage of Sound

For the source room measurements, the difference between the average sound pressure levels in adjacent one-third octave bands should be no more than 6 dB. If this condition is not met, the source spec

NI-wide·Technical Booklet G Resistance to the Passage of Sound

It is essential that all measurements made in the source and receiving rooms to determine a level difference should be made without moving the sound source or changing the output level of the sound so

NI-wide·Technical Booklet G Resistance to the Passage of Sound

The sound source should now be moved to the next position in the source room and the above procedure repeated to determine another level difference. At least two positions should be used for the sourc

NI-wide·Technical Booklet G Resistance to the Passage of Sound

For multiple sound sources operating simultaneously, the average sound pressure level in the source and receiving rooms is measured in one-third octave bands using either fixed microphone positions (a

NI-wide·Technical Booklet G Resistance to the Passage of Sound

For the source room measurements, the difference between the average sound pressure levels in adjacent one-third octave bands should be no more than 6 dB. If this condition is not met, the source spec

NI-wide·Technical Booklet G Resistance to the Passage of Sound

The impact sound transmission of a separating floor should be measured in accordance with BS EN ISO 140-7. All measurements and calculations should be carried out using one-third octave frequency band

NI-wide·Technical Booklet G Resistance to the Passage of Sound

BS EN ISO 140-4 and BS EN ISO 140-7 refer to the ISO 354 (BS EN 20354) method for measuring reverberation time. However, for the approved procedure, the guidance in BS EN ISO 140-7 relating to the sou

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Section 1 gives guidance on the room types that should be used for testing. These rooms should have volumes of at least 25 m3. If this is not possible then the volumes of the rooms used for testing sh

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Tests should be conducted in completed but unfurnished rooms or available spaces in the case of properties sold before fitting out; see Section 1.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Impact sound insulation tests should be conducted on a floor without a soft floor finish such as a carpet or foam backed vinyl except in the case of – (a) separating floor type 1, as described in this

NI-wide·Technical Booklet G Resistance to the Passage of Sound

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

NI-wide·Technical Booklet G Resistance to the Passage of Sound

When measuring airborne sound insulation between a pair of rooms of unequal volume, the sound source should be in the larger room.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Doors and windows should be closed.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Kitchen units, cupboards, etc. on all walls should have their doors open and be unfilled.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Sound pressure levels should be measured to 0.1 dB precision.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Reverberation times should be measured to 0.01 s precision.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

At least two positions should be used.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

For measurements of reverberation time, discrete positions should be used rather than a moving microphone.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Pre-completion testing involves field testing on separating walls and floors (see Section 1 and Appendix B: B2). However, there are applications for laboratory tests to determine the performance of: f

NI-wide·Technical Booklet G Resistance to the Passage of Sound

When calculating sound insulation test results, no rounding should occur in any calculation until required by the relevant Standards, i.e. the BS EN ISO 140 series and the BS EN ISO 717 series.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Floor coverings and floating floors should be tested in accordance with BS EN ISO 140-8: 1998 and rated in accordance with BS EN ISO 717-2. The test floor should have a thickness of 140 mm.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

When a test construction has airborne sound insulation of at least 49 dB DnT,w + Ctr when measured in a flanking laboratory using the procedure given in Appendix B: B2, this can be taken as indicative

NI-wide·Technical Booklet G Resistance to the Passage of Sound

When a test construction has impact sound insulation no more than 58 dB L'nT,w when measured in a flanking laboratory using the procedure given in Appendix B: B2, this can be taken as indicative that

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Paragraph 1.42 of this Technical Booklet sets out the manner of recording the results of testing done. Although not required, it may be useful to have a description of the building including – (a) ske

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Test reports should include the following information – (a) Organisation conducting test, including – (i) name and address; (ii) third party accreditation number (e.g. UKAS or European equivalent); an