Month: September 2019

Server Room Integrity Test Failure

Server Room Integrity Test Failure

The Reason for Server Room Integrity Test  Failure

Server rooms and data centres that have gaseous fire extinguishing systems are required to be tested on an annual basis. This is obviously critical given the consequences of fire damage and down time for such equipment. It is essential that an server room integrity test is undertake prior to handover of the enclosure and annually thereafter. Over the last 12 months we are seeing an increasing amount of server rooms fail the annual integrity test due to the inability of the server room’s envelope to adequately retain the extinguishant.

This is often due to penetrations through the wall, ceiling and floors the enclosure is not able to retain the extinguishant agent for the required holding period – usually 10 minutes. If the server room fails the integrity test, remedial work should then be undertaken to reduce the leakage from the enclosures envelope, this may include;

  1. Sealing the underside of doorways within the floor void (Risk Level 10)
  2. Sealing all cracks or penetrations leading into or out of the protected enclosure (Risk Level 8)
  3. If a false ceiling is installed below the structural soffit, ensure the air tightness line – usually above the false ceiling is fully sealed. (Risk Level 10)
  4. Ensure all structural steels are sealed where they go through the inner envelope (Risk Level 8)
  5. Seal around the all air conditioning/cooling vent frames (Risk Level 8)
  6. Sealing all pipe chases and cable trays to be sealed around the outside and inside  where they penetrate the perimeter boundaries of the protected enclosure (Risk Level 10)
  7. Walls to be caulked around the inside perimeter at both high and low level (Risk Level 9)
  8. The sealing of porous block walls – this can be remedied by painting etc. (Risk Level 8).
  9. The addition of door sweeps or drop seals, weather stripping around jambs (Risk Level 9)
  10. Sealing of windows/glazed sections to the area (Risk Level 8)

For fire suppression system to work properly, the room must have sufficient integrity to retain an extinguishing concentration for a specified period after discharge – usually 10 minutes) if the enclosure can’t adequately hold the extinguishment the fire may reignite causing further damage. As this is the predominant cause of failure, the British and International Standard (BS: ISO14520) requires that a server room integrity test be conducted on system installation and thereafter at annual intervals, failure to do so may negate your buildings insurance.

In the event of a failed server room integrity test we can quickly locate the air leakage paths using low impact smoke-puffers – if permitted.  We can then issue an air leakage report highlighting the air leakage paths within the server room enclosure. This will ensure that you have all of the required information to undertake targeted remedial sealing works on the enclosure.

Once the air leakage paths are sealed a second room integrity test can be undertaken – if time permits. Once the appropriate remedial work has been undertaken then the enclosure should be retested to confirm if an acceptable level of integrity has been reached and the results recorded.

Our professional engineers, using the very latest in testing technology will provide thorough informative assessments concerning potential areas of leakage, advice and recommendations on protection and solution, as well full retention reports.

If you would like more information in regards to Room Integrity Testing Please visit reference the following ISO standards: ISO 14520, NFPA 2001 and ISO 15004

If you would like more information on our server room integrity testing, please visit us at or visit our Room Integrity Page.

Sound Insulation Testing – Common Questions & Answers.

Sound Insulation Testing – Common Questions & Answers.

Sound Insulation Testing – Common Questions & Answers.

To try and help our clients better understand Sound Insulation Testing for Approved Documents E, we have collated the most common and questions (along with answers) clients have asked us over the last ten years. If you have further questions not contained within this article then please don’t hesitate to contact us.

What is Sound Insulation Testing?
Sound insulation is the property of a wall and /or dividing partition to resist the passage of noise. The sound Insulation testing is a method of quantifying the sound insulation performance of walls and/or floors. Sound Insulation testing can be carried out on party walls, party floors or facades of any building.

Sound Insulation Testing – Common Questions & Answers.

Do I need sound insulation testing on my Property?
One of the largest single reasons for disputes between neighbours is noise complaints. Approved Document Part E – Resistance to the passage of sound describes minimum standards to be achieved by newly built domestic dwellings.

What is Approved Document E?

Approved Document Part E of the Building Regulations, sets out minimum standards for sound insulation performance to be achieved by party wall and party floors, you can achieve compliance with Part E by undertaking Pre-Completion Sound Testing

When is the Sound Testing carried out?
The Sound Insulation Testing is carried out when the buildings are complete. Windows should be in place with any vents closable. Internal and external doors should be in place, along with skirting, cornicing and plug sockets in place. Sound testing must be carried out before any soft coverings such as carpet have been laid to the floors. No furniture – such as beds or settees should be in the rooms during the sound testing as it will have an effect on the results. 

Are internal partitions within a single dwelling sound tested?
No, Laboratory test based performance standards (Rw) exist for certain internal walls and floors, but they are not intended to be verified as-built by on site measurement and therefore sound insulation testing is not a requirement; however, approved document E does state that internal partitions should achieve 40dB.

Do detached properties require sound testing for Part E of Building Regulations?
No, only attached properties require sound tests such as semi-detached dwellings or blocks of flats. Detached properties share no common partitions with any other properties.

How many sound insulation tests should I need on my Project?

Approved Document E states that one set of sound tests is required for every 10 units in a group or sub-group. A group or sub-group is defined where significant differences in construction or layout occur, for instance:

For a pair of semi-detached Houses – a set of tests would usually comprise two airborne sound insulation tests of a separating wall.

  • For Flats (up to 10 units) – a six pack would normally be required, this comprises of: two airborne wall tests, two airborne floor tests and two impact floor sound tests.
  • For Rooms for Residential Purposes (student accommodation, hotel rooms, care homes etc.) – a set of tests would usually comprise: one airborne sound insulation tests of a separating wall; one airborne sound insulation test of a separating floor; one impact sound transmission test of a separating floor.

Which plots selected for sound testing?
We usually specify the amount of sound insulation tests that is required on each project and this will be shown on a schedule within our fee proposal. This allows our clients to forward the schedule to building control to seek their approval prior to the test. We first look at the floor plans then work out a testing schedule taking into account testing through the projects ‘habitable rooms’ i.e. lounges & bedrooms where possible. When we have specified the sound testing schedule it should always be checked by building control and/or the client to seek their approval before the commencement of sound insulation testing.

How do I Prepare my Site for Sound Insulation Testing? 

APT Sound Testing always send out a sound testing checklist along with our fee proposals to help you prepare for the sound testing, as we always want our clients to be fully prepared so they can pass their sound testing at the first attempt.

How long will the sound testing take?

The time taken to undertake the sound insulation testing varies with site conditions, but generally a ‘6 pack’ set of tests on houses and flats takes about one to two hours. Obviously this depends on the site being fully prepared in line with our sound testing checklist.

Will the sound insulation testing disrupt work on site? 
we require relatively quiet conditions are needed to take accurate measurements. This means that anyone working in the testing area will have to leave temporarily and any noisy works in the vicinity of the test rooms will need to be halted i.e. using power tools or loud hammering etc.  

How do I know if I’m ready for a sound insulation test?
We send out a checklist with all quotations to allow our clients to check they are ready for the sound testing. Basically the plots should be at least at second fix stage – for further details please refer to our sound test checklist.

What sound testing equipment do you use?

We use the latest UKAS calibrated acoustic equipment, for ease of use and reliability. unlike many other companies we able inform clients if they have passed or failed straightaway whilst on site. This allows us to offer acoustic advice and collect detailed construction information whilst on site, in the event of wall and/or floors failing the sound testing.

What if I only have 110V and not 240V on site?

Unfortunately we cannot undertake the testing off 110V or localised generator power; we will need 240V to undertake the sound testing.                   

Should I inform my neighbours of the impending sound testing?
If the building is attached in any way to occupied properties then you will need to inform the neighbours. We need to gain access to the neighbouring properties to undertake the sound test as we test the wall partition. You will also need to ensure that access is provided to the neighbouring properties throughout the sound testing.

Can you offer acoustic advice to help me to pass my sound testing?
APT offer an acoustic design service to help you design your buildings partitions to pass Part E sound testing. If you send through the relevant drawings such as sections and floor plans during the design stages of the project, we can check the design to see if there are any junctions or details where ‘noise flanking’ may occur, we can then advise if any changes are required to lower the chance of sound test failures.

Rest Assured

We believe in working with our clients on all types of projects from small end of terrace developments up to large blocks of flats. We believe that by being involved at the beginning of a project we can often save our clients expensive and difficult remedial works at the completion stage of a project.

If you need sound insulation testing for your current project, please call our team on 01525 303905 or email  We can provide you with expert advice and are happy to offer a free, no obligation quote along with our informative

checklist to help you prepare for the sound testing.