Room Integrity Test

Room Integrity Test

A room integrity test is one of the most important aspects of any fire suppression system. If a protected enclosure has a suppression system, the agent that is discharged into the enclosure has to be able to remain there for a minimum period of 10 minutes, from the initial activation of the fire alarm or alert.

A fire suppression system can provide adequate cover and function correctly if the room is adequately sealed. A room that is insufficiently sealed may allow the suppression agent that has been discharged into the room to escape too quickly, prior to fully extinguishing the fire which may result in massive damage to your major asset.

On Site Fire Integrity Test 

Room_intergrity_test_fire_supressant

The performance of any protected room and fire suppression system can only be guaranteed when serviced regularly through a professional maintenance routine. APT always recommend that room integrity testing is made part of an annual service and maintenance package, to ensure that on discharge, the suppression agent achieves and maintains the correct concentration, at the appropriate height for minimum required time frame.

In many instances although the room may be quite air tight, the enclosure may fail as the distance from the structural height, i.e. the ceiling of the enclosure may be very close to the top of the protected height – the top of the server racks. When designing a protected enclosure it is always best to allow plenty of distance between the top of the protected height and the ceiling as this should result in more retention time, as long as your enclosure is sufficiently airtight.

It is worth noting that if your protected enclosure suffers fire damage, it may not be covered by the buildings insurance if you don’t have up to date Fire Integrity Certification.

For further information on our room integrity testing services, please contact our technical manager Darren on 07775623464; or email us at info@aptsoundtesting.co.uk

BS8233 Noise Assessment

BS8233 Noise Assessment

A BS8233 noise assessment report should be submitted during pre-application discussions or more commonly during a planning application. In some circumstances, a planning condition will be included on the planning permission requiring the submission of a noise report.

BS8233-Noise-Survey

In many cases a planning permission officer or the local environmental health team will be the first person involved in informing a client that they are in need of a noise impact assessment, this will typically be due to the fact that a complaint or concern has arisen around the increased noise and/or the perceived increase in noise due to a change of use or an increase in licencing hours.

Our BS8233 noise impact assessment will measure and predict the effects that the new/proposed noise source will be likely have on the current noise climate. This is achieved by firstly establishing a baseline measure of the existing noise climate and then comparing this with the introduced noise. If this comparison cannot be achieved due to practical purposes, then a reasonable prediction can be made through various modelling methods.

Noise_SurveyCentral_London

There can be a large variety of scenarios and requirements that may be present during noise impact assessments, with this in mind it is important to liaise with the case officer and environmental health team, in order to ensure that the appropriate legislation and British Standards are being adhered to at all times.

If part of your planning conditions requires you undertake a noise survey and would like to speak with one of our noise consultants, then please give us a call us today. The noise assessment process isn’t intrusive, lengthy or costly. Normally we would leave a meter over a 24 hour period which would gather the necessary data automatically, taking into account other factors such as construction, setting and external variables. We could then provide a detailed report and advise how best to proceed.

If you would like to know more about or noise impact assessment service, please contact us at info@aptsoundtesting.co.uk or contact me (Darren) directly on 07775 623464. Alternately please visit our website at www.aptsoundtesting.co.uk

Noise Impact Assessment in London

Noise Impact Assessment in London 
Noise impact assessments are often required at the planning stage of developments that may generate noise, and noise-sensitive developments which may be affected by noise. Some developments, such as mixed use, fall into both categories. Potentially noise generating developments often require a Noise Impact Assessment to be undertaken. This normally requires existing ambient noise levels to be established, typically by undertaking measurements, and the impact of noise from the development to be established. For large developments, it is often necessary to consider secondary effects, such as the impact of increased traffic on existing roads.

Noise Impact Assessment In London 

Sound_Testing_Flats

A BS 8233 Noise survey report; or, noise impact assessment should be submitted during pre-application discussions or more commonly during a planning application. In some circumstances, a planning condition will be included on the planning permission requiring the submission of a noise report.

In many cases it will be the planning officer or the local environmental health team that will inform a client that they are in need of a noise impact assessment, this will typically be due to the fact that a complaint or concern has arisen around the increased noise and/or the perceived increase in noise due to a change of use or an increase in licencing hours.

Noise Assessment in Central London 

BS8233-Noise-Survey

Our noise impact assessment will measure and predict the effects that the new/proposed noise source will be likely have on the current noise climate. This is achieved by firstly establishing a baseline measure of the existing noise climate and then comparing this with the introduced noise. If this comparison cannot be achieved due to practical purposes, then a reasonable prediction can be made through various modelling methods.

There may a number of requirement that may be present during noise impact assessments; with this in mind it is important to liaise with the case officer and environmental health team, in order to ensure that the appropriate legislation and British Standards are being adhered to at all times.

If you would like to know more about or noise impact assessment service, please contact us at info@aptsoundtesting.co.uk  or contact me (Darren) directly on 07775 623464. Alternately please visit our website at www.aptsoundtesting.co.uk

BS8233 Noise Surveys

BS8233 Noise Surveys  

In large cities, there is far more noise pollution than ever before; this comes from a huge range of noise sources such as traffic, alarms and music/sport venues. As cities populations get larger, people start to inhabit an increasingly compacted space the work of acoustic consultants is becoming ever more important to help reduce excess noise levels. This can be done through a variety of means and methods, one of the most important methods in the context of busy urban environments in the noise impact assessment.

Noise Survey Equipment

BS8233-Noise-Survey

The main purpose of a BS8233 noise assessment is to measure and predict the impact that a development will have on the surrounding environment, residents and whatever noise sensitive receptors happen to be within the vicinity of the development.

The local authority may require a noise impact assessment for a number of reasons, this can include the opening of an entertainment premises in a sensitive area, the installation of new mechanical plant such as a new air-conditioning unit or a change in opening hours of a premises that already has permission to operate from the local council, such as a bar/nightclub wanting to extend its licence from 23.00 to 02.00.

A noise impact assessment may be required at the application stage or once planning permission has been granted. A noise survey and report are required if:

  • The proposed development with commercial areas that may create noise which may affect nearby noise sensitive properties. For example, a new commercial activity near existing residential properties.
  • The proposed development location will be sensitive to noise and is likely to be affected by existing noise sources i.e. busy roads, railway, airports or commercial activity.

=The noise impact assessment is to demonstrate that:

  • The source of noise is evaluated and quantified
  • Nearby noise sensitive receptors identified
  • Noise receptors have been determined with reference to noise standards

The BS8233 noise assessment may also set out control measures where it is necessary to reduce noise to acceptable levels. For example, the installation of different glazing e.g. from double to triple glazed panels or acoustic trickle vents are installed so that internal noise standards are met.

If noise levels are shown as NEC category B and above, the local authority will look for noise reduction measures that will achieve the “good” internal noise level criteria in bedrooms and living rooms set out in BS8233:2014.  Where the noise levels are shown as NEC category D, the local authority usually recommends that planning consent be refused.

If you would like to know more about or noise impact assessment service, please contact us at info@aptsoundtesting.co.uk or contact me (Darren) directly on 07775 623464. Alternately please visit our website at www.aptsoundtesting.co.uk

Sound Testing for Leasehold Agreements

Sound Testing for Leasehold Agreements

One of the main reasons for neighbour disputes is down to the fact that floor modifications may have taken place without the flat owner, first consulting his/her leasehold agreement. In many cases the lease agreement contains something similar to the following conditions:

Sound Testing through Floors

Part-E-Sound-Testing

‘If the tenant wants to change the floor construction within his dwelling he shall’:

  • Commission an independent acoustic consultant to carry out a pre installation test, design the new acoustic installation and carry out a post installation test and provide the results to the landlord’s surveyors for approval; and
  • Invite the Landlord’s surveyor to inspect the acoustic insulation before it is concealed; and
  • Accept that the Landlord, whilst granting this Licence, does not accept any responsibility for the design or performance of the insulation provided and that if any issues arise the Tenant will address these immediately. In the event of reasonable complaint being upheld by the Landlord or his agent concerning noise affecting other Tenants within The Building, the Tenant will arrange for carpeting (the provision of which shall be determined by the Landlord) to be positioned and maintained at the Tenant’s sole cost;

We offer a comprehensive acoustic service to let our clients comply with their leasehold agreements.

  • Pre-works Sound Testing of the existing construction. This offers an accurate overview of the acoustic performance of the existing floor partition/s prior to the commencement of construction works. It also enables us to offer a targeted acoustic design using the sound insulation performance of the existing construction.
  • Acoustic design review – once we have the performance figures from the sample sound testing have been established, we can forward a design that should improve the performance of the existing floor partition – even if you are changing the floor from a carpet to engineered timber floor finish!
  • Site Survey Visit – This allows us to check that the installation team is installing the acoustic materials as per manufacturer’s guidelines.
  • Final Precompletion Sound Testing in-line with Approved Document E. This provides an accurate overview of the acoustic performance of the upgraded partition/s, the results of which can be handed over to the relevant person for sign off.

If you are about to make changes to your apartment floor, and you require acoustic design advice, then please contact us now at: info@aptsoundtesting.co.uk  or phone me directly on 07775623464.

 

Noise Complaints in Existing Apartment Blocks

Noise Complaints in Existing Apartment Blocks

Over the last few years we are noticing a rise in noise complaints in existing apartment blocks. There may be many reasons for this. Noise problems range from airborne noise transmission from voices TVs and music to footfall impact noise caused by high heels on wooden/tiled floors – it is usually the impact noise that is noticed most by the residents if the unit above has changed their floor finish from carpet to wood.

Excessive-Noise

In many cases even if the floor assembly has been designed and constructed to provide adequate airborne isolation, impact noise can still be a major problem. One of the main problems is if works to the floor finish have been undertaken, changing it from carpet to timber. Even if it passes the sound test, the perceivable rise in impact noise often leads to complaints, as carpet and underlay normally provides a good degree of impact sound isolation. Taking this into account it’s very important that impact isolation design, is taken into account before the installation of a hardwood and/or ceramic tile finish.

If you think you may have a problem with sound in your dwelling and/or you have encountered complaints from a neighbour due to changes you have made to the floor finish then please contact us now. Try to describe the noise problem in as much detail as possible. Describe the nature of the sounds, when and where you or your neighbour can hear it. Is it impact noise or airborne noise or a combination of both? The more information you can provide us, the quicker we can try to determine the nature of the problem and find a solution. It may be as simple as the installation of an acoustic resilient membrane to the floor.

Acoustic_Site_Survey

In our experience, if careful consideration is shown to the acoustic element of the floor upgrade, it should reduce the chance of complaints at a later stage, which will also avert costly legal battles at the end of the project and which often leads on to expensive remedial works.

We can come in prior to works commence and undertake a sample sound test of the existing floor partition, thereafter we can advise on the acoustic design of the floor. once the works have been completed we can then undertake a final precompletion sound test to show compliance with Building Regulations Part E.

If you are about to make changes to your apartment floor, and you require acoustic design advice, then please contact us now at: info@aptsoundtesting.co.uk  or phone me directly on 07775623464.

Planning noise survey

A planning noise survey may be required at the application stage or once planning permission has been granted. A noise survey and report are required if:

  • The proposed development with commercial areas that may create noise which may affect nearby noise sensitive properties. For example, a new commercial activity near existing residential properties.
  • The proposed development location will be sensitive to noise and is likely to be affected by existing noise sources i.e. busy roads, railway, airports or commercial activity.

A planning noise survey is undertaken to demonstrate that:

  • The source of noise is evaluated and The noise impact assessment is to demonstrate that:quantified
  • Nearby noise sensitive receptors identified
  • Noise receptors have been determined with reference to noise standards

The planning noise survey may also detail the control measures which are necessary to reduce noise to acceptable levels. For example, the installation of different glazing e.g. from double to triple glazed panels or acoustic trickle vents are installed so that internal noise standards are met.

planning-noise-survey

Where the noise levels are shown as NEC category B and above, the local authority will look for noise reduction measures that will achieve the “good” internal noise level criteria in bedrooms and living rooms set out in BS8233:2014 (shown Below).  For outdoor garden areas, noise levels should be less than or equal to 55 dB(A) as recommended in the World Health Organisation Guidelines on Community Noise. Where the noise levels are shown as NEC category D, the local authority usually recommends that planning consent be refused.

There can be a large variety of scenarios and requirements that may be present during noise impact assessments, with this in mind it is important to liaise with the case officer and environmental health team, in order to ensure that the appropriate legislation and British Standards are being adhered to at all times.

If you would like to know more about or planning noise survey, please contact us at info@aptsoundtesting.co.uk or contact me (Darren) directly on 07775 623464. Alternately please visit our website at www.aptsoundtesting.co.uk

Noise Impact Assessment Surveys

Noise Impact Assessment Surveys

In the large cities like London, there is more noise pollution than ever before; this comes from large range of noise sources, from sirens and alarms to noise traffic and music/sport venues. As more people move into cities and start to inhabit an increasingly compacted space the work of acoustic consultants is becoming ever more important to help reduce excess noise levels.

Noise Assessment in LondonNoise-Assessment

This can be done through a variety of means and methods, one of the most important methods in the context of busy urban environments in the noise impact assessment.

The primary purpose of a noise impact assessment is to measure and predict the impact that a development will have on the surrounding environment, residents and whatever noise sensitive receptors happen to be within the vicinity of the development.

There are many reasons that the local authority may require a noise impact assessment, this can include the opening of an entertainment premises in a sensitive area, the installation of new mechanical plant such as a new air-conditioning unit or a change in opening hours of a premises that already has permission to operate from the local council, such as a bar/nightclub wanting to extend its licence from 11pm to 2am.

Nightclub Noise Noise-assessments-nightclub-noise

In most cases a planning permission officer or the local environmental health team will be the first person involved in informing a client that they are in need of a noise impact assessment, this will typically be due to the fact that a complaint or concern has arisen around the increased noise and/or the perceived increase in noise due to a change of use or an increase in licencing hours.

Our noise impact assessment will measure and predict the effects that the new/proposed noise source will be likely have on the current noise climate. This is achieved by firstly establishing a baseline measure of the existing noise climate and then comparing this with the introduced noise. If this comparison cannot be achieved due to practical purposes, then a reasonable prediction can be made through various modelling methods.

In our experience, there can be a large variety of scenarios and requirements that may be present during noise impact assessments, with this in mind it is important to liaise with the case officer and environmental health team, in order to ensure that the appropriate legislation and British Standards are being adhered to at all times.

If you would like to know more about of noise impact assessment service, please contact us at info@aptsoundtesting.co.uk or contact me (Darren) directly on 07775 623464. Alternately please visit our website at www.aptsoundtesting.co.uk

Sound Testing for Approved Document E

Sound Testing for Approved Document E

Approved Document E – ‘Resistance to the passage of sound’ became part of the building regulations on July 1st 2003 and provides minimum sound insulation Building Regulation requirement for new build and conversion dwellings. Properties include houses, flats, hotels, student residences, care homes are all now required to be sound tested under approved document E.

Part E Sound Testing

Part-E-Sound-Testing

Approved Document E is a government issued document providing guidance for developers, architects and building control bodies as well as other bodies involved in the design and conversion of buildings for residential purpose. The document explains the testing requirement for each type of project and provides some good advice and details about building procedures and materials that affect test results.

In Part E it defines the two types of sound – ‘airborne sound, which is sound generated and transferred directly in the air by talking or home entertainment systems such as music systems or Televisions) or ‘impact sound, such as sound generated by the impact of an object striking the floor and transmitted through it, such as footfall noise).

Excessive Noise Problems

Excessive-Noise

The objective of Approved Document E is to raise sound resistance standards and reduce excess noise for tenants for both airborne and impact noise, which in turn will to provide reasonable living conditions and improve the well-being of tenants. Sound insulation testing may also be required in non-residential buildings such as schools, hospitals and workplaces to ensure that noise sensitive areas such as classrooms, wards and meeting rooms are suitably insulated from noisier areas, notably BREEAM projects usually require sound insulation testing. In rare cases the sound testing of external facades may also be  a requirement.

APT Sound Testing are a UKAS and ISO accredited company.

If you would like more information in regards to our sound testing services please contact us at: info@aptsoundtesting.co.uk or visit our website at: www.aptsoundtesting.co.uk

The Different Types of Sound Insulation Testing

The Different Types of Sound Insulation Testing

Sound Testing has been mandatory requirement since July 2003. All new build dwellings and conversions which were built after this date require 10% of each party wall/floor construction type to be tested.

Sound Insulation Tests needs to be carried out between pairs of rooms separated by party walls or floors, i.e. in block of flats you would undertake airborne testing across the walls and floors; and impact tests across the floors.

Sound_Testing_Flats

You usually try to undertake testing between the two main habitable rooms, such as living rooms and bedrooms. The sound test procedure involves setting up a noise source in a room on one side of the party wall or floor and measuring the noise on both sides of the partition with a class 1 analyser.

Airborne Sound Insulation Tests

Airborne sound insulation tests may be required between horizontally and vertically separated pairs of rooms. The sound tests are undertaken by using a sound source, amplifier and loudspeaker to generate a high noise level in one room (the source room). Noise measurements are then taken in both the source and receiver rooms using a prescribed number of source and microphone positions.

Sample_Sound__Testing

The background levels in the receiver room are measured and the reverberation time in the receiver room is also measured. From the results, the airborne sound insulation (DnT,w + Ctr) is calculated and compared to the requirements of Approved Document E.

Impact Sound Insulation Tests

For vertically separated rooms Impact sound Insulation testing may also be required. This sound test is undertaken using a “tapping machine”, (as above) which drops a series of weights onto the floor of the upper room. The noise level in the lower (receiver) room is measured for a prescribed number of source and microphone locations. The background levels in the receiver room are measured and the reverberation time in the receiver room is also measured. From the results, the impact sound insulation (L’nT,w) is calculated and compared to the requirements of Approved Document E.

Impact Sound Testing

We use the latest Norsonic equipment, which is class one rating and UKAS calibrated. We are a UKAS and ISO accredited company, so you can be assured all our testing is carried out to the strictest quality controlled standards.

If you would like more information in regards to sound testing please follow our blog at: http://soundtestinguk.blogspot.co.uk/, or contact me (Darren) on 07775 623464 ot email us at info@aptsoundtesting.co.uk