COMMERCIAL BUILDING THERMAL IMAGING SURVEYS

Our commercial building thermal imaging surveys are becoming more important as businesses work towards net zero carbon emissions. The BREEAM standard is perhaps the world-leading standard for sustainability in the built environment. We recognise that it is also a key element of certification in building thermal performance. Even without BREEAM, we have seen the UK government moving to impose stricter requirement on the energy performance of commercial properties, requiring commercial buildings to be EPC Grade B or above by 2030. Additionally, there are hefty fines anticipated for non-compliance.

Why proceed with Red Fox Thermography?

Aerial drone used on a construction site for a commercial building thermal imaging survey
  • We can help clients work towards obtaining BREEAM credits via comprehensive thermal imaging surveys. We fully understand the requirements set out in the underlying requirements specification (SD5076) and will work in partnership with the client towards a successful outcome.
  • Our fully calibrated thermal cameras are above the recommended specification specified by the UK Thermography Association. We also offer the capability to perform drone-based aerial thermal surveys in complement to the traditional tripod-mounted system.
  • Our Thermal imaging surveys can be arranged before and after works are undertaken to help guide clients where improvements need to be made. Our infrared surveys are entirely non-intrusive and are usually undertaken outside of normal working hours to ensure correct thermal conditions.
  • All our surveyors are PCN Category 2 trained and fully insured for on-site work. As part of the survey preparation we will perform a full risk assessment, to enable us to work safely on site.
  • We work closely with developers and businesses to ensure that the thermographic survey is performed in the best conditions, and at the most suitable time to identity and put right any potential build defects. For these reasons we ensure continuous communication in the run-up to a survey, and we may request to rearrange the date in the conditions are not optimal.

Expert Thermal Imaging Services

Contact us now for full trained, professional thermographic surveys you can trust.

Best conditions for our BREEAM Thermal Surveys

Thermal image of flats used in a commercial building thermal imaging survey

For us to fulfil the requirements of BREEAM, we need to ensure that the environmental conditions preceding a thermal imaging survey meet several criteria:

  • We need to ensure that the temperature difference between the building interior and exterior is greater than 10°C. This is typically achieved by heating the building for a period of 72 hours in advance of the survey. This also means that our surveys are generally performed in the cooler months (October through March).
  • Our survey needs to be performed without the influence of solar radiation; this means that we perform the survey at night, or early morning.
  • Ideally, we need the preceding day to the survey to be dry and the wind speed during the survey should be low, to limit the influence of connective cooling. The humidity during our external survey should also be low to ensure crisp image acquisition.

We understand that it is not always feasible to achieve perfect conditions, however we work with our clients closely in the days preceding the survey to ensure the best possible outcomes.

What can commercial Thermal Imaging Surveys detect?

Our thermal imaging surveys are extremely useful tools for understanding the built environment. By observing the radiated heat from an object via aerial drone images or tripod-mounted images, it’s possible for us to see variations due to material type, temperature and underlying behaviour:

New building construction showing wall structure & internal insulation

Thermal Bridging

Classically, in our domestic thermal imaging surveys, variations in radiated heat can be due to thermal bridging. This is where unintentional conductive links between the external fabric of the building and the internal fabric create hot or cold spots depending on temperature difference between inside and out.

Thermal image of a room showing missing insulation as part of an infrared survey

Insulation Problems

Where insulation is missing in a wall cavity, the air in the cavity acts to transfer heat from the inside to the exterior. This will show up on our thermal images as cold areas, even though the wall appears fine to the human eye. Likewise, missing, or incorrectly installed loft insulation will lead to tell-tale signatures in the thermal images.

Damp brick wall

Damp Issues

We can also detect moisture ingress by thermal imaging. This is possible due to water having a greater capability to retain heat than the normally dry brick or plaster work. Additionally, in humid environments, poorly insulated or ventilated walls and ceilings can become damp, leading to mould growth.

Thermal image showing poor air tightness behind plasterboard, from an infrared survey

Air Tightness

Homes require adequate ventilation to ensure that moisture build-up is not excessive, as this can lead to damp and mould problems. Too much ventilation in winter however, can lead to excessive room cooling and your central heating system working excessively to replace the heat lost to the outside. Sources for draughts can be obvious, such as decaying door seals, or poorly fitting windows. However they can also be less obvious, such as air filtration behind plasterboard. In all these situations, our thermal imaging is an ideal method to locate and identify these issues.

"Global greenhouse gas (GHG) emissions from buildings were in 2019 at 12 GtCO2-eq, equivalent to 21% of global GHG emissions that year, out of which… 24% (were) direct emissions produced onsite." IPCC (2022) Climate Change 2022: Mitigation of Climate Change, Contribution of Working Group III, https://www.ipcc.ch/report/ar6/wg3

How does a commercial building Thermal Imaging Survey work?

1

Initial introduction

Communicating by phone or email, we work to understand your needs and requirements. From this we can provide you a detailed quote and scope for the survey. There’s no obligation after receipt of the quotation, and we don’t chase our potential clients. We will, however, always be at the end of a phone or email if you require further support (e.g. as part of a tender proposal).

2

Decision to proceed

If you’re happy to proceed – great! We will then start with the more detailed planning; arranging with you site access, schedules and risk assessments as required. We will ask for a deposit to be paid at this stage (as detailed in the quote) to secure the booking.

3

Onsite planning survey

We usually insist on a preliminary daytime visit to the property. This is to ensure the time-critical thermal survey (undertaken at night) can be properly planned and any blocking issues,  e.g. access or hazards, can be resolved in advance.

4

Onsite thermal imaging survey

This is the key phase. Working systematically around the property, we will record thermal images via aerial drone and/or tripod mounted camera, alongside temperature measurement data, to allow us to create the subsequent report. The duration of this will depend on property size, but expect as a minimum 2 hours to complete.

As thermal imaging surveys are very much weather-dependent, we will work with you to identify opportunities in your schedule to facilitate the survey. However we do ask for some degree of flexibility to re-arrange at short notice, should conditions not be ideal. This is critical for BREEAM, where a number of key conditions (temperature, humidity, wind speed) all dictate whether the associated survey will provide reliable data and can thus proceed.

5

Completion of report

Depending on the size of the project, the report will usually follow within 2-3 weeks following the survey, once we’ve had time to properly process and analyse the data, and give your report the attention it requires.

6

Aftercare

We share the same planet, so helping you address build performance and CO₂ footprint, helps us all. After you have the report, we’ll happily advise on build and insulation improvements where we can.

What is included in the Thermal Imaging Survey Report?

Thermal image of apartments used in a commercial building thermal imaging survey A commercial Thermal Imaging Survey Report will be accurate and fully comprehensive and include sufficient detail to correctly locate and identify potential faults, or otherwise confirm sound thermal performance. Our thorough reports go above and beyond ‘standard reporting’ and are individually tailored to each property. We will include the following:
  • Introduction and explanation of terminology used to allow the client to understand the contents of the report
  • Site information (weather and site plan showing image capture locations for context)
  • Camera and equipment calibration certificates
  • Detailed visual and thermal inspection findings, presented room by room and also for external profiles
  • All thermal images presented side by side with equivalent photos to allow easy comparison
  • Simple plain English explanations of the results, highlighting any anomalies but also confirming where survey findings present no concern
  • Technical image data allowing expert scrutiny of the report
  • Conclusion of our overall findings
  • Recommended next steps and suggestions for remedial works if required
  • All the necessary data required to pass on to architects, builders and other specialists who may be involved in your building commissioning

Book Your Thermal Survey Now