Frequently Asked Questions
Answers to some of our most common questions
Ask The Experts
Here you’ll find answers to the questions we get asked the most about undertaking thermal imaging surveys and remote sensing aerial inspections.
Thermography (otherwise known as “Thermal Imaging”) is a specialist technique which uses infrared-sensitive cameras to inspect buildings, electrical equipment, rotating machinery and devices to detect faults or problematic areas, as part of routine maintenance or fault-finding. This non-invasive method allows the identification – both in terms of location and severity – of problems associated with heat loss.
Upon completetion of a thermographic survey, clients will recieve a precise and detailed report featuring comments and advice from experienced and highly qualified thermographers. We only allow level 2 or above thermographers to produce our reports, ensuring your report is as comprehensive as possible. We’re then available to help, explain and troubleshoot your new thermal data with you as much as you need.
No, it’s totally harmless! Everything gives off infrared radiation, and thermal imaging cameras merely detect this existing radiation (rather than emit anything).
In short, as far as you can with your eyes. For example, imagine looking at a building on the horizon – you might be able to distinguish its shape, but you won’t be able to see people inside walking by the windows. This is very much the same for thermal imaging cameras. Whilst factors such as object, resolution and environmental conditions all play a role, most objects distinguishable with your eyes will be visible on an infrared camera.
Rather than using a CMOS or CCD detector which records different levels of a range of visible light colours, a thermal imaging camera uses a microbolometer array to accurately measure levels of infrared radiation across a scene. This temperature data is then processed to produce a thermal image (known as “thermogram”), which can then be very precisely quantified or measured.
Unfortunately not! Thermal imaging cameras can only detect heat as it radiates off of an object, and as such cannot “see” through solid objects such as brick walls.
No – whilst anyone can pick up a thermal imaging camera, only a qualified engineer will be able to process and interpret the data to a standard in which reliable information can be determined. We’ve had clients that have replaced entire walls and structures based on the misinterpretation of imagery from an unqualified engineer, unnecessarily costing the customer thousands of pounds.
Absolutely! All of our thermographers are level 1/2/3 certified. We are also a CHAS accredited contractor, registered Constructionline supplier, UKTA approved to conduct BREEAM thermographic surveys, BINDT approved training centre and ISO 9001:2008 registered. To see a full list of our accreditations, please click here.
It is recommended that certain conditions are met to ensure any outcomes within our reports are fully accurate and actionable. To ‘see’ heat loss (or gain) at least a 10°C temperature difference between the inside and outside must be achieved for a minimum of 24 hours prior to the survey if occupied, or 72 hours for a ‘dead’ building. If the building has no operational heating system, temporary direct heaters (such as space heaters) may be required. It’s because of this that surveys can often take place very early in the morning or late in the evening.
For a full list of thermographic survey requirements, please click here.
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Thermal Imaging Surveys
Commercial thermal imaging surveys in accordance with the criteria set out in BRE 176 and BS EN ISO 13187.