Sound Insulation Testing & Advice

Often known simply as a “sound test”, most come about because a local authority building control officer wants proof that a floor or wall satisfies the requirements of the Building Standards (Scotland) Regulations 2005.

Building control officers accept our results and issue habitation certificates (certificates of practical completion) having seen our reports. Increasingly, builders are being asked by their clients to have sound tests carried out as part of their contract, regardless of whether building control want one.

We visit sites to carry out “sound tests” typically three or four times a week. Hence, since the company’s inception in 1997, we have carried out tests on over 8000 floors and walls.

This, together with Charlie’s experience in sound transmission testing from 1983 onwards, means we have a huge amount of knowledge in this field. This means we know how to carry out the tests, within the Regulations, to obtain the best results. It also means that if a floor or wall fails, we will tell you what to do to it to get it to pass.

Advice

Having carried out hundreds of sound tests, we have an enormous database of results. Using this together with our theoretical knowledge, we can predict the performance of floors, walls and other building elements.

Disputes

We also carry out these tests to resolve disputes between house builders and residents. Similarly, we often go into offices to test the sound transmission of partitions to resolve disputes between the end user and the builder, builder and partition supplier, builder and glazing contractor, etc.

Previous Projects

Charlie Fleming Associates carries out what is often known as a “sound test” around four times a week. This is where a building control officer asks for a test to be carried out on a floor or wall. Having carried out literally thousands of these tests, they are too numerous to list.
We are blessed with repeat business from many blue chip companies, as you will see in our Satisfied Clients section.
Most tests are carried out in Edinburgh, Glasgow, the central belt, Aberdeen and Dundee, but we have been as far afield as Bonar Bridge in the north, Fort William in the north-west, Campbeltown in the south-west and Duns in the south-east. A long time ago, Charlie drove down to London to do one, and more recently Peter went across to Dublin to measure sound insulation. Indeed, we will be delighted to quote for jobs anywhere in the UK and Ireland.

Satisfied Clients

Most instructions to carry out sound tests are taken from property developers, builders, architects and project managers.
We have also been asked to undertake sound tests by building component and timber kit manufacturers, curtain walling contractors, chartered and quantity surveyors, commercial and private estate agents, lawyers, private individuals, facilities managers, housing associations, hoteliers, restaurateurs, publicans, night-club and shop owners, health care trusts, schools and universities.

Sound Insulation Test Procedures

As required by building control officers, as specified in Section 5 – Noise of the Domestic Technical Handbook, which is part of the building regulations, all measurements are carried out strictly in accordance with the Standards listed below:
 
British Standard BS EN ISO 140-4:1998
Acoustics – Measurement of sound insulation in buildings and of building elements – Part 4: Field measurements of airborne sound insulation between rooms.
 
British Standard BS EN ISO 140-7:1998
Acoustics – Measurement of sound insulation in buildings and of building elements – Part 7: Field measurements of impact sound insulation of floors.
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Why Choose Charlie Fleming Associates?

Rapid Response

We can normally carry out sound tests at one or two day’s notice, to fit in with your construction programme. (We fully appreciate the pressure you are under just before handover/completion). Results are available on site, and can be emailed to the site or head office later the same day. A full report follows in a day or two.

No Disruption

We do not insist that work on site stops while the tests are carried out.

Better Results

We work hard, within the building regulations, to try and secure passes where other companies do not.

Price

We can compete on price and offer 15% and 20% discounts for retained commissions.

Fixed Fees

When we provide a quotation we stick to it. That is what you pay, regardless of how long it actually takes us to carry out the test. In general, we won’t charge you for a visit during which we cannot get the test done because, for example, the meters in the flats have not been connected when Scottish Power said they would.

False Economies

Some of our competitors claim that they carry out measurements in accordance with the appropriate British Standards, when in fact they cut corners, which leads to less accurate results. In turn, this can mean that a construction appears to fail when in fact it does not. This happened not too long ago, when our methods secured a pass result for a floor which had been failed by another firm, purely because they did not conduct the measurements properly. Not only was the fee paid to the first firm of consultants a waste of money, but the cost of implementing the, unnecessary, recommendations, would have exceeded £200,000.

Instruments

We use only Brüel & Kjær instruments. These are the “Rolls Royce” of acoustical instrumentation and give more accurate results than some of the meters used by our competitors. Accuracy can mean the difference between PASS and FAIL.
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Independence

Certain other firms of acoustical consultants based in Scotland have relationships with manufacturers of building products, receiving payments for specifying their materials. If a construction fails, they will recommend these products. The advice is not independent and the company may then benefit if your floor/wall fails a sound insulation test.

Experts

Peter Dunlop and Sandy Lamb carry out the tests. Both have a wealth of experience in this field. There are other companies which send poorly trained technicians to perform the sound test. There are many pitfalls in the measurement of sound insulation, and mistakes can be extremely costly, as noted above, over £200,000.

Advice

Should a floor or wall fail, with our extensive experience we can tell you what to do to make it pass. Many of our competitors are not able to do this.

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Previous Projects

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Satisfied Clients

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Methods & Personnel

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Why Choose CFA?

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