An Introduction & Explanation of BREEAM
BREEAM (Building Research Establishment Environmental Assessment Method), first published by the Building Research Establishment (BRE) in 1990, is the world’s longest established method of assessing, rating, and certifying the sustainability of buildings. More than 550,000 buildings have been ‘BREEAM-certified’ and over two million are registered for certification in more than 50 countries worldwide. BREEAM also has a tool which focuses on neighbourhood development.

The BREEAM Assessment
BREEAM is an assessment undertaken by independent licensed assessors such as APT Sound Testing using scientifically-based sustainability metrics and indices which cover a range of environmental issues. Its categories evaluate energy and water use, health and wellbeing, pollution, transport, materials, waste, ecology and management processes. Buildings are rated and certified on a scale of ‘Pass’, ‘Good’, ‘Very Good’, ‘Excellent’ and ‘Outstanding’.

It works to raise awareness amongst owners, occupiers and designers of the benefits of taking a sustainable approach, providing a framework to help them to successfully adopt sustainable solutions in a cost-effective manner, and provides market recognition of their achievements. It aims to reduce the negative effects of construction and development on the environment.

BREEAM has expanded from its original focus on individual new buildings at the construction stage to encompass the whole life cycle of buildings from planning to in-use and refurbishment. Its regular revisions and updates are driven by the ongoing need to improve sustainability, respond to feedback from industry and support the UK’s sustainability strategies and commitments.

Highly flexible, the BREEAM standard can be applied to virtually any building and location, with versions for new buildings, existing buildings, refurbishment projects and large developments:

BREEAM New Construction is the BREEAM standard against which the sustainability of new, non-residential buildings in the UK is assessed. Developers and their project teams use the scheme at key stages in the design and procurement process to measure, evaluate, improve and reflect the performance of their buildings.

BREEAM International New Construction is the BREEAM standard for assessing the sustainability of new residential and non-residential buildings in countries around the world, except for the UK and other countries with a national BREEAM scheme (see below). This scheme makes use of assessment criteria that take account of the circumstances, priorities, codes and standards of the country or region in which the development is located.

BREEAM In-Use is a scheme to help building managers reduce the running costs and improve the environmental performance of existing buildings. It has two parts: building asset and building management. Both parts are relevant to all non-domestic, commercial, industrial, retail and institutional buildings. BREEAM In-Use is widely used by members of the International Sustainability Alliance (ISA), which provides a platform for certification against the scheme. The newest version v6, available from 2020 includes also Residential programs.

BREEAM Refurbishment provides a design and assessment method for sustainable housing refurbishment projects, helping to cost-effectively improve the sustainability and environmental performance of existing dwellings in a robust way. A scheme for non-housing refurbishment projects is being developed and is targeted for launch in early 2014. The launch date will be announced once the piloting and independent peer review processes has been completed.

BREEAM Communities focuses on the masterplanning of whole communities. It is aimed at helping construction industry professionals to design places that people want to live and work in, are good for the environment and are economically successful.

BREEAM includes several general sustainability categories for the assessment:

>>> Management
>>> Energy
>>> Health and wellbeing
>>> Transport
>>> Water
>>> Materials
>>> Waste
>>> Land use and ecology
>>> Pollution

Home Quality Mark was launched in 2015 as part of the BREEAM family of schemes. It rates new homes on their overall quality and sustainability, then provides further indicators on the homes impact upon the occupants ‘Running costs’, ‘Health and wellbeing’ and ‘Environmental footprint’.

Here at APT Sound Testing we have been providing indoor air quality services such as post-construction air quality testing and indoor air monitoring for a number of years. We have assisted many customers in gaining their BREEAM and other compliance credits through our air quality plan and BREEAM air quality testing services.

For more information please call one of our friendly team today on 01525 303 905 or Contact Us using our online web form. We are here to help! 

Description of the BREEAM process taken from Wikipedia

The Importance of Air Quality Testing in the Property Industry
In recent years, the focus on health and well-being has grown significantly, leading to a heightened awareness of the importance of indoor air quality (IAQ). This concern has permeated various sectors, with the property industry standing out as a crucial player in ensuring the well-being of occupants. Indoor air quality testing has emerged as a pivotal tool for property owners, developers, and managers to assess and enhance the air quality within buildings.

This post delves into the significance of indoor air quality testing in the property industry, exploring its impact on human health, property value, and overall occupant satisfaction.

Understanding Indoor Air Quality:

Indoor air quality refers to the condition of the air within buildings and structures, especially as it relates to the health and comfort of the occupants. It encompasses a range of factors such as the presence of pollutants, ventilation, temperature, and humidity levels. Poor indoor air quality can have detrimental effects on health, leading to respiratory issues, allergies, and other health problems.

The Property Industry’s Role:

The property industry plays a vital role in shaping the built environment, and as such, it carries a significant responsibility for the well-being of its occupants. Indoor air quality is a key aspect of this responsibility, as individuals spend a considerable amount of time indoors, whether at home, in offices, or other commercial spaces. Recognizing the impact of indoor air quality on the health and productivity of occupants, the property industry has increasingly turned its attention to comprehensive IAQ testing.

Health Impacts:

The link between indoor air quality and health is well-established. Poor air quality can contribute to respiratory problems, exacerbate existing conditions such as asthma, and even lead to long-term health issues. By conducting regular indoor air quality testing, property owners can identify and address potential sources of pollution, ensuring a healthier environment for occupants.

Occupant Satisfaction and Productivity:

The quality of indoor air has a direct correlation with occupant satisfaction and productivity. Employees, residents, and visitors are more likely to feel comfortable and perform better in spaces with good air quality. The property industry, recognizing this, has started to prioritize IAQ testing as a means to create environments that promote well-being, thereby increasing tenant satisfaction and overall property value.

Property Value and Market Competitiveness:

Indoor air quality has become a key consideration for individuals and businesses looking for properties. A building with a strong focus on IAQ is more likely to attract tenants and buyers. As sustainability and wellness trends gain momentum, properties with good indoor air quality stand out in the market, potentially commanding higher values. IAQ testing, therefore, becomes an essential component of a property’s overall competitiveness in the real estate market.

Regulatory Compliance:

Governments and regulatory bodies are increasingly recognizing the importance of indoor air quality and implementing standards to ensure the well-being of building occupants. Property owners and managers must stay informed about these regulations and comply with IAQ standards to avoid legal issues and potential liabilities. Indoor air quality testing serves as a proactive measure to ensure compliance with existing and emerging regulations, safeguarding both occupants and property owners.

Common Indoor Air Pollutants:

To effectively address indoor air quality, property professionals must understand and identify common indoor air pollutants. These may include:

(1) Volatile Organic Compounds (VOCs): Released from paints, cleaning products, and furnishings.

(2) Mold and Mildew: Thrives in damp and poorly ventilated spaces, leading to respiratory issues.

(3) Particulate Matter (PM): Tiny particles from combustion, construction, or other sources that can be inhaled into the lungs.

(4) Carbon Monoxide (CO): Produced by incomplete combustion of fossil fuels, posing serious health risks.

(5) Radon: A naturally occurring radioactive gas that can seep into buildings, leading to lung cancer.

Importance of Professional IAQ Testing:

While property owners can take some measures to improve indoor air quality, professional IAQ testing is essential for a comprehensive assessment. Certified professionals use specialized equipment to measure pollutant levels, identify sources, and provide recommendations for improvement. This approach ensures accurate and reliable results, guiding property owners in making informed decisions to enhance IAQ effectively.

The IAQ Testing Process:

Professional indoor air quality testing typically involves several key steps:

(1) Initial Assessment: Evaluating the property’s design, occupancy, and potential sources of pollutants.

(2) Monitoring: Using specialized equipment to measure levels of pollutants such as VOCs, PM, CO, and humidity.

(3) Sample Collection: Collecting air or surface samples for laboratory analysis to identify specific pollutants.

(4) Analysis and Reporting: Interpreting the results and providing a detailed report with recommendations for improvement.

(5) Implementation of Solutions: Taking corrective measures to address identified issues and improve indoor air quality.

Indoor Air Quality Testing ~ a Crucial Component
Indoor air quality testing has become a crucial component of the property industry’s commitment to providing healthy and sustainable built environments. As the awareness of the impact of indoor air quality on human health and well-being continues to grow, property professionals must prioritize IAQ testing to meet regulatory requirements, enhance property value, and ensure occupant satisfaction.

In doing so, the property industry can contribute to the creation of healthier and more livable spaces, aligning with the evolving expectations of occupants and stakeholders.

APT Sound Testing Services ~ UKAS Accredited
Here at APT Sound Testing Services we undertake sound testing on all types of residential buildings and commercial buildings. We also undertake sound testing on schools and buildings containing rooms for residential purposes.

We provide provide UKAS accredited sound testing for London and the whole of the UK as required by Approved Document E of the Building Regulations.

Sound Testing Engineers
Our team of experienced sound test engineers at APT Sound Testing are dedicated to giving our customers the best quality of service and offer acoustic design advice where possible, to help our clients achieve the required acoustic results to pass the sound testing and attain building completion.

We can also undertake ‘in house’ UKAS accredited air tightness testing in one seamless package, lowering costs and negating coordination issues.

Who We Work With
APT Sound Testing have years of experience working with a wide range of clients that span both the public and private sectors. We have clients ranging from self-builders through to the largest housing developers. We also work with the health authority and the banking sector on their cleanroom testing. Our clients have benefited from our wealth of knowledge and friendly, proactive service that we provide.

We have one of the highest return-client rates of any precompletion testing and consultancy services within the United Kingdom. This is due to the proactive unique service that we can provide. We do not subcontract our work – everything is undertaken in-house.

We are one of the few companies that have an office in central London, which means we can respond quickly and efficiently to our client’s survey and testing requirements. We also have the resources to undertake last minute testing have the resource capabilities to carry our last minute testing and weekend working – which we often do in the banking sector) should it be required.

Thanks to highly trained engineers, we are able to provide a quick and efficient service with the emphasis on customer satisfaction, which is why we have one of highest return-client rates of any acoustic consultancy. Using our many years’ acoustic design experience has allowed us to build a knowledge base that helps us achieve an understanding of our client and project requirements. We are also a multi UKAS accredited laboratory, working to strict ISO standards so you can sure of a quality service from start to project completion.

In is our ongoing policy to listen to our clients’ needs and present them with practical, cost-effective solutions which also takes into account buildability considerations. This means that we offer acoustic consultancy solutions, which encompasses acoustic design and precompletion testing in one easy package.

We use the latest acoustic testing and survey equipment which is UKAS calibrated to the highest standards. By investing in both our personnel and equipment it allows us to offer a more efficient service.

Contacting APT Sound Testing
APT Sound Testing strive to provide our clients with a guaranteed quality service every time they decide to get in touch. We offer a friendly and proactive design, consulting, and precompletion testing service for all your compliance and certification requirements. Our team would love to hear about your latest project, so please get in touch now by calling 01525 303905 or visit our website.

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APT Sound Testing has many years’ experience of acoustic design, supported by our vast experience in construction design management and by utilizing the data from thousands of sound insulation tests, which gives us a clear understanding of the positives and negatives of many different construction types. This gives us a clear understanding of the requirements necessary to pass your sound testing in line with The Building Regulations Approved Document E.

Acoustic Design & Testing

We have undertaken hundreds of acoustic design and testing packages on many different types of projects, from the initial scheme stage to completion. We offer a no nonsense professional proactive service that ensures your company receives professional advice every step of the way, with a continual consideration of cost.

We are also a UKAS accredited testing laboratory sound insulation testing service which means we can test and issue certification on completion of any works carried out and you can be safe in the knowledge that the results will be accepted by the tasked building control company.

Our roadmap to pass precompletion sound testing

We can help develop the acoustic design of the project from the initial design scheme stage through to the precompletion sound testing. In particular we review the acoustic details to consider the mass, isolation, and absorption elements of the construction.

To try and help our clients achieve compliance with Approved Document E, we offer the following 4 step acoustic design advice package:

1. Site Survey Visits – to let us view the existing site construction. This allows us to check for potential problematic construction such as inclusion of lightweight blocks in the existing construction. It also lets us check that the installation teams are installing the acoustic materials as per manufacturer’s guidelines.
2. Sample Sound Testing – of the existing construction. This offers an accurate overview of the acoustic performance of the existing partitions which enables us to offer a targeted acoustic design using the sound insulation performance of the existing construction.
3. Acoustic Design Review – a full design review of the proposed developments party walls and floors. Site Survey Visits – to let us view the existing site construction. This allows us to check for potential problematic construction such as inclusion of lightweight blocks in the existing construction. It also lets us check that the installation teams are installing the acoustic materials as per manufacturer’s guidelines.
4. Final pre-completion Sound Testing to satisfy Approved Document E and attain building control signoff.

Acoustic advice for passing the Party Floors sound testing

To reduce airborne and impact sound transmission this usually means adding density and isolation to the floor construction. This can be as simple as adding a drop ceiling consisting of 125mm timber frame. The top of the frame must be a minimum of 25mm below the existing ceiling finish – such as lathe and plaster.

Then, to the inside of the timber frame add 100mm of Acoustic Wool and two layers of sound-board tacked to the bottom of the timber frame – all boards to be lapped. This should improve your sound test results by approx. 15dB depending on the existing site conditions and quality of the installation.

For more information about our Acoustic Design Services, call our team today on 01525 303 905 or use our online form to contact us. We offer a friendly and proactive design, consulting, and precompletion testing service for all your compliance and certification requirements.

Thermographic Inspections for BREEAM Compliance

APT undertakes BREEAM thermal imaging surveys specifically tailored to meet the requirements of BREEAM. The thermography surveys can contribute towards extra credits for overall BREEAM certification and provides visual evidence to the energy performance of a building.

The BREEAM (Building Research Establishment Environmental Assessment Methodology) is a structured to analyse, rate and certify a building’s environmental and sustainability characteristics for both new build and refurbishment projects.

Why Does BREEAM ask for Thermal Imaging Surveys

Thermographic Inspections Survey
The standard that contains the requirements for a BREEAM thermal imaging survey is the SD5078 BREEAM UK New Construction standard. This was launched in 2014 and the section that deals with thermography is contained within thermal comfort for health and wellbeing. The aim of the BREEAM scheme is to mitigate environmental impacts throughout the life cycle of new buildings cost effective and robust manner.

The following text contains the necessary criteria set out within the BRE SD5076 scheme for gaining the extra credit/s for your project.

One Credit – Testing and Inspecting Building Fabric

1. 1. The commissioning and testing schedule and responsibilities credit is achieved.
   2. The integrity of the building fabric, including continuity of insulation, avoidance of thermal bridging and air leakage paths is quality assured through completion of post construction testing and inspection. Dependent on building type or construction, this can be demonstrated through the completion of a thermographic survey as well as an airtightness test and inspection (see compliance notes 3 and CN3.4. The survey and testing is undertaken by a Suitably Qualified Professional (see Relevant definitions) in accordance with the appropriate standard.
   3. Any defects identified in the thermographic survey or the airtightness testing reports are rectified prior to building handover and close out. Any remedial work must meet the required performance characteristics for the building/element.

We Use Level 3 Thermographers for BREEAM thermal imaging surveys

The importance of using one of our Level 3 trained thermographers cannot be understated as they are trained to be write predictive maintenance and inspection practices and to develop test procedures and ascertain severity criteria. To try and help clients prepare for the BREEAM thermal imaging survey to their building, we have written the following article: How we carry our thermal Surveys on commercial buildings. Here is some more information in regards to the new BREEAM Technical Standards as well as scoring extra BREEAM credits for your new development.

Thermographic Inspections Checklist
BREEAM provides extra points to projects that have a BREEAM Thermal survey undertaken. As not many clients are aware of BREEAM thermal surveys, we have included more information in our ‘What is a BREEAM thermal Imaging Survey’ article. Also to try and help clients prepare for their survey please download the APT Sound Testing Thermal Imaging Checklist.

Simply get in touch via our online contact form or call us on 01525 303905 to discuss your specific requirements with our friendly and knowledgeable acoustic and air tightness consultants.

The Importance of Thermal Imaging Surveys for BREEAM

Thermal imaging surveys are important for BREEAM (Building Research Establishment Environmental Assessment Method) for several reasons:

1. Verify Thermal Performance: BREEAM environmental assessment method calls for thermal imaging surveys of the building fabric to verify that the thermal performance of a building is as designed.
2. Identify Energy Loss: Thermal imaging can identify areas of energy loss through the building fabric, which is crucial for reducing the environmental impact of construction and ongoing usage of the building.
3. Attain BREEAM Credits: Thermal imaging surveys can provide one BREEAM credit towards your building, which can improve your BREEAM rating.
4. Resolve Heat Loss Issues: Thermal imaging surveys can quickly and conclusively resolve heat loss issues, which is crucial for the ongoing energy efficiency of the building.
5. Compliance with Building Regulations: Thermal imaging is the best way to assess continuity of insulation or locate air leakage paths in a completed building. This helps project teams comply with the Building Regulations, specifically Part L4 and achieve building control signoff.

The Minimum Requirements for BREEAM Thermal Surveys

BREEAM Thermal imaging surveys should be conducted by certified inspectors to ensure accuracy and compliance. For BREEAM thermographic surveys, a minimum of Level 2/Category 2 certification in accordance with ISO 18436-7 is required. This certification requires approved training, stringent examination, and a minimum of 1200 hours of hands-on experience.

It’s worth noting that Level 1 thermographer is not permitted under ISO 18436-7 to conduct surveys unless working under the direction of a Level 2 thermographer. As of 6th June 2014, the PCN (Civil) Level 2 and ABBE Level 4 Building Thermographer qualifications are also recognised by the UKTA as suitable for BREEAM thermographic surveys. It’s always best to check with your specific BREEAM assessor to check they are happy with your thermographer’s qualifications.

Why Carry Out Thermal Imaging Surveys to ISO 18436-7:2014?

ISO 18436-7:2014 is an international standard that specifies the requirements for qualification and assessment of personnel who perform machinery condition monitoring and diagnostics using infrared thermography.

Here are some key points about ISO 18436-7:2014:

• It provides recognition of the qualifications and competence of individuals to perform thermal measurements and analysis for machinery condition monitoring using portable thermal imaging equipment.
• This procedure might not apply to specialized equipment or other specific situations.
• It specifies a three-category classification programme that is based on the technical areas delineated in the standard.
• A certificate or declaration of conformity to ISO 18436-7:2014 is often required for professionals conducting thermographic surveys, including those for BREEAM.

The Required Thermal Camera Specification for BREEAM

The minimum thermal camera specification for a BREEAM thermal imaging survey is a resolution of 320×240. However, most professional thermographers use a 640×480 camera, which has 4 times more pixels per image, to ensure adequate analysis. Some services also specify the use of large format FLIR thermal imaging cameras with 45-degree lenses which can cost upwards of £30K. Please note that these specifications can vary and it’s always best to check with the specific requirements of your BREEAM survey.

How Do I Find a Suitably Trained BREEAM Thermographer

There are several resources available to help you find a certified thermographer:

• IACT (International Association of Certified Thermographers): The IACT maintains a list of certified thermographers and technicians who have had their training and certification verified and accepted by the respective board to undertake BREEAM thermal surveys.

• UKTA (United Kingdom Thermography Association): The UKTA is an association of professional practitioners of thermography. It provides a list of certified thermographers who are fully qualified in thermal imaging for BREEAM.

Please note that these are just a couple of examples and there may be other organisations or resources available depending on your location and specific requirements.

Why choose us for your BREEAM Thermal imaging inspection?

We provide a professional thermal inspection service which surpasses the specification required by BREEAM. Our thermographers are Level 3 certified, which is the highest accreditation available.

It’ worth noting that our air tightness and thermal imaging services include the following:

• UKAS accredited and ATTMA Level 2/3 certified.
• UKAS calibrated equipment.
• Level 3 thermographic certification
• Large format 640 x 480 FLIR cameras
• A detailed report which includes thermal indexing formula for fault diagnosis, qualification, and severity grading.

To discuss options and arrange for one of our thermographic surveyors to visit, you site please call APT Sound Testing on 07775 623464 to arrange an appointment; or email us at info@aptsoundtesting.co.uk. Alternatively, please visit our website at: www.aptsoundtesting.co.uk

Sound, Air & Vent Testing in One Seamless Package!

For most new projects you are required to undertake air tightness, sound insulation and domestic extract testing. We are one of the few companies that are UKAS accredited to undertake both Air & Sound testing in compliance to Building Regulations and Standards.

This means we can undertake Air, Sound and Vent Testing Packages during the same visit which provides our clients with substantial cost savings and reducing potential coordination issues. Also, unlike many companies we do not subcontract our works so our testing engineers offer the highest standard possible.

Sound Insulation Testing

Pre completion sound testing under Part E of Building Regulations has been a mandatory requirement since July 2003. All new build properties and conversions which were built after this date require 10% of each party wall/floor construction type to be tested. Sound Testing is to be carried out between pairs of rooms separated by party walls or floors.

Sound insulation testing is required to make sure that a residential development can demonstrate acceptable levels of noise attenuation performance. Building Regulations Part E requires you undertake two different types of sound testing including airborne noise (i.e.sound/noise transmitted through the air, such as televisions and conversations between people) and impact noise (i.e. noise resulting from an impact on the floor surface, such as footsteps on the floor). By undertaking the two types of sound testing ensures the dwelling provides a reasonable resistance to the passage of sound.

Air Tightness Testing

Air testing to achieve satisfactory levels of air tightness became a legal requirement in 2006 in England and Wales, under Building Regulations Part L and is becoming increasingly important to help produce greener buildings, via the reduction of carbon emissions as energy is not being needlessly lost from residences via large air leakage paths etc.

Building Regulation Part L defines ‘air leakage’ as the uncontrolled flow of air through gaps and cracks in the fabric of a building. The general public recognise it as draughts. When you lose energy through the building fabric this is known as the building emission rate. Newprojects/developments must meet specific requirements for air testing and emission rates.The usual target for a standard dwelling is 5.0m3/hr/m2; however for commercial buildings the target rate is often much lower – around 3.0m3/hr/m2.

Extractor Fan Testing

Extractor Fan Testing under Part F of Building Regulations has been a mandatory requirement since 2014. All new extract ventilation that uses intermittent extractor fans such as bathrooms, WC and kitchens in new buildings need to have their air flow rates measured on site and the results submitted to the building control body prior to completion and handover.

As buildings become more insulated and air tightness is improved, it is essential that any installed ventilation systems are fit for purpose, balanced and commissioned correctly to ensure optimum levels of operation for the well being of the occupants and prevent on going damage to the properties via mould etc.

We can undertake the extractor fan testing at the same time as the air and sound testing which helps to reduce coordination issues as well as offering a substantial cost saving. You can also be safe the knowledge that the works are being carried out by a UKAS accredited company.

APT Sound Testing Services

APT Sound Testing are one of the few companies that have an office in central London, which means we can respond quickly and efficiently to our client’s survey and testing requirements. We also have the resources to undertake last minute testing have the resource capabilities to carry our last minute testing and weekend working – which we often do in the banking sector) should it be required.

We use the latest acoustic testing and survey equipment which is UKAS calibrated to the highest standards. By investing in both our personnel and equipment it allows us to offer a more efficient service.

APT Sound Testing strive to provide our clients with a guaranteed quality service every time they decide to get in touch. Our team would love to hear about your latest project, so please get in touch now.

Soundproofing Floors and Ceilings

APT provides acoustic testing and consultancy to help architects and developers achieve the minimum requirements of Part E of the Building Regulations for new build and/or conversion projects. We also carry out our specialist Lease Condition sound testing where specific sound reduction requirements are required unique to each residential building.

The most common question clients ask is “How do I soundproof my party floors and ceilings to pass my Part E sound insulation test?” this article tries to answer this.

Soundproofing Floors and Ceilings
We have helped thousands of clients achieve compliance with Building Regulations Part E, so you can rest assured you have come to the right place. We can propose various designs accounting for:

• Above and below joist solutions
• Above joist solution only
• Below joist solution only

Where possible we try to propose an off the shelf acoustic solution, which is often the cheapest option. Many other companies will try to push a bespoke ‘specialist’ solution that is often much more expensive and more difficult to install.

Using our vast knowledge of soundproofing design for party walls and ceilings, we can provide a more simple soundproofing solution for our clients requirements, from the smallest to the largest developments which can often save tens of thousands of pounds.

Firstly, we will sit down with you to try and ascertain your sound insulation requirements you need from the party floor. We then design the party floor and ceiling to either pass Part E for sound test; or, we can design the soundproofing for your floors and ceilings to achieve an excellent level of sound insulation compared to Part E’s minimum requirements by designing party floors to achieve plus 5 to 10dB – this upgrade is often a required by clients where their flats sit directly above ground floor commercial units and excess noise must be taken into account.

Let us help you pass your sound testing via good acoustic design

Soundproofing to achieve compliance with Part E, should not be just about ‘just passing’ as this means that the chance of noise complaints will be much greater due to the poorer soundproofing. This may also have a detrimental effect for the new resident renting the property and/or the new owner feeling angry that they have rented/purchased their dream home, only find that the property is too noisy.

If you need help with the acoustics on your project, make sure you get your soundproofed floors and ceilings designed by APT Sound Testing – the experts! For more information please contact us on 01525 303905 or info@aptsoundtesting.co.uk, or for more information please visit our website at www.aptsoundtesting.co.uk or download our sound test checklist.

F.A.Q for Raised Floor Plenum Testing
Raised floor plenum testing demonstrates the air tightness of the space below the raised access floors. Achieving air tightness in plenums is critical in achieving efficient air handling within buildings. Once the plenum has been constructed, an air tightness test to BG65/2016 must be undertaken to ensure the plenum meets design specifications.

Measuring the air leakage from a floor plenum, which is a void between a building’s floor structure and a raised access floor, used for distributing conditioned air to the spaces above. It is important to ensure that the floor plenum is airtight, as air leakage can cause energy inefficiency and discomfort to the occupants.

What’s the cost of a Raised Floor Plenum Test?
The cost of a floor plenum test may vary depending on the size, complexity, multiples, and location of the plenum, as well as the quality of the testing company and the standards followed.
However, the cost of floor plenum test in UK ranges from £500 to £750 in the UK and £850 to £1000 in London. This does not include the cost of any air leakage surveys using smoke and thermal imaging, as well as any remedial work that may be required to seal the plenum and reduce air leakage. For a more accurate estimate, please contact us at info@airpressuretesting.net and request a quote.

What’s the duration of a Raised Floor Plenum Test?
The duration of a floor plenum test may depend on several factors, such as the size and shape of the plenum, the number and location of the test points i.e., are they in different buildings, the equipment and method used. However, in our experience the average duration of a floor plenum test is about 2 to 4 hours per floor plenum – this doesn’t include the time required for any preparatory or remedial work sealing works that may be needed before or after the test.

What happens if I fail the floor plenum test?
If you fail the raised floor plenum test, it means that your floor plenum is not airtight enough and may cause problems with the air distribution and energy efficiency of your building.
To try and attain a pass for our client on the day, we can carry out a smoke and thermal imaging survey to highlight air leakage paths through fabric (walls, floor, and floor tiles) and issue a report for reference during the remedial sealing works. In many cases if the air leakage can be found and is quite easy to seal, the remedial works can be carried out during the test visit.

What result do I need to pass a raised floor plenum test
According to the **BG65/2016** guide on floor plenum airtightness, the worst acceptable criteria for air leakage from floor plenums are:

• Plenum leakage: no more than 0.7 litres/s/m2 at a pressure of 50Pa – this is the air leakage through the plenum envelope into adjacent spaces via the walls, floors, cavities, internal columns, risers, service penetrations, heating trenches or other zones.

• Raised access floor leakage: no more than 1 litre/s/m2 at a pressure of 50Pa. This is the uncontrolled air leakage into conditioned zones, such as through joints in the raised access floor or between the raised access floor and walls junction.

These criteria are recommended to ensure energy efficiency and comfort for the users of the building. More stringent air leakage specifications may be required for critical environments, such as data.

Common sources of air leakage in floor plenums are:

In our experience, some of the common sources of air leakage in floor plenums are:

1. Service penetrations – that run through the access floor, walls and subfloor, such as cable bundles, cable trays, pipes, fire barriers, etc.
2. Cable trunking – that is not internally sealed within the trunking void.
3. Grilles and diffusers – gaps around grills and diffusers that are not sealed or gasketed.
4. Poorly installed masonry – walls etc. that has not been jointed and/or has missing masonry resulting in gaps and cracks.
5. Service Risers – that are not properly sealed for plenums or ducting.
6. Plasterboard – installed on studs that has not been properly sealed at board edges and the ends below the raised floor level.
7. Junction Joints – between tiles or between tiles and walls/columns that are not sealed or gasketed.

Excess air leakage in floor plenums can cause energy inefficiency and discomfort to the occupants, as well as affect the performance of the floor-mounted diffusers or grilles. Therefore, it is important to design, install and test the floor plenums for airtightness, following the standards and guidelines provided by BG65/2016.

How to prepare for a raised floor plenum test
There are many things to consider when preparing your raised floor plenum for the air tightness test. for instance, before installing the floor tiles, we recommend that careful checks are undertaken to all areas of the floor plenum, the main areas to check and seal are the wall/floor junctions, wall/raised floor junction, columns/floor and raised floor junctions, ductwork, and cable trays.

During the installation of ductwork/cable trays, it is common to miss out the sealing beneath the duct/tray where it penetrates the wall, and this is then very difficult to seal at a later stage. When planning the work with the contractors, we’d recommend highlighting this area and installing an airtight seal beneath the duct.

Also, all masonry, fireboard and plasterboard should be carefully checked to ensure that all joints are fully sealed, and no damage has been caused by the later inclusion of services.
Also, prior to the taping of the floor, ensure that all ductwork openings and/or the air handling units are fully sealed. To avoid any areas have not been missed, check the drawings to identify where these are in the plenum.

Also, prior to the installation of the tape, ensure that the raised floor tiles and surrounding walls etc. have been carefully cleaned, otherwise the tape will come off during the plenum test whilst under pressurisation. It would also be worth using a high-tack tape to ensure it stays in place throughout the plenum test.

If you would like to know how to prepare for your floor plenum test, please click on the following link how to pass a floor plenum test.

Why Choose us APT for your Raised Floor Plenum Test!
Our team of floor plenum test engineers provide a high-quality testing service for commercial properties throughout London and the Southeast.

We use the latest Retrotec testing equipment that allows us to test all sizes of access floors, to ensure your floor plenum meets the requirements of BG65/2016.

We provide the following as part our professional testing service:

• 20 years of air testing design and testing experience
• UKAS accredited testing laboratory
• ATTMA Level 2 certified
• The latest UKAS calibrated equipment
• Smoke and thermal imaging air leakage detection service

Contact us today to learn more about our floor plenum testing services and how we can help you achieve a test pass for you project! For more information call APT today on: 0777 5623464 or email us at: info@airpressuretesting.net

What Types of Sound Insulation Testing is Needed on Flats?
There are two types of sound tests that are required for flats to comply with Approved Document E; they are:

Airborne Walls and Floor Tests
These types of sound tests are carried out on separating walls and floors/ceilings between flats. An airborne sound test measures levels of sound transmitted through the air, such as speech and TV and Music noise. We use the latest Dodecahedron loudspeakers that produces white noise on one side of the partition, and measure noise with a Level 1 decibel meter on the other side of the partitions to check how much sound is lost through the partition.

Impact Floor Tests
This type of sound tests is only carried out on separating floor/ceiling divides between dwellings. An impact test measures the levels of noise transmitted directly through a separating construction as a result of impact noise such as footfall. We use a Norsonic tapping machine, which drops metal hammers onto the floor to create impact noise. We then measure the amount of sound that passes through the partition with a decibel meter on the other side of the dividing partition.

Sound Insulation Testing Services
All types of sound insulation testing should only be completed on ‘habitable’ rooms. Habitable rooms can be Lounges, Living Rooms, Studies, bedrooms and open plan kitchens. Test findings are fed into a report, that will compare the results against the Part E Building Classification, which will clearly show a pass or fail. Thereafter the sound test report, will be sent to the client. As a UKAS accredited testing laboratory, our sound test report should always be acceptable to your tasked Building Control, and will help you to achieve building signoff for Approved Document E.

We know how important a sound insulation certificate is to you in achieving building control signoff, that’s why we pull out all the stops to make certain that you get the certificate quickly. We pride ourselves on the fact that our sound insulation certificates are issued with speed and efficiency.

Even before you get the sound test certificate, you will receive the results of the test. First, our skilled and competent acoustic engineers give you a verbal result at the site. Then, a written report is sent to you within 24 hours of a working day.

Why Do We Need Sound Testing on Flats?
When sound resistance (or sound insulation) is high in party walls and floors, the environment is more comfortable for residents as sound affects every aspect of our lives including home/work environment and while relaxing.

Insufficient sound insulation usually causes distress and discomfort while an effective sound insulation system brings about speech privacy and helps to improve relaxation and often helps to improve sleep patterns. This is one of the several reasons why sound insulation is a key element in building.

If, for example, resident working night shifts may not be able to sleep if their neighbours like to play loud music. Robust levels of sound insulation will help to reduce the noise and help to improve the quality of a person’s life in diverse ways. There are also developments where the neighbouring units are used for different purposes, such as home/work/studio units, in such cases a sound test ensures that the noise coming from each unit is minimal.

For further information sound insulation on party floors in Flats, please see our sound test checklist or visit us at www.aptsoundtesting.co.uk or call us on 01525 303905.