Thermography and thermal imaging in Ireland

Thermography reveals faults invisible to the naked eye

Thermal imaging (a.k.a thermography) is used across Ireland for building inspections, solar farm inspections, and infrastructure inspections. It reveals problems that look normal to the naked eye and to a standard camera. Moisture trapped under a roof membrane, a failing cell in a solar panel array, a section of wall losing heat through a gap in the insulation — all of these show up clearly in a thermal inspection, and none of them would be visible any other way.

A thermal camera detects the rate at which different surfaces emit heat energy — not what is beneath them. Wet insulation under a roof membrane retains heat from the day's sun and gives it off more slowly than dry insulation. The thermal camera sees that temperature differential at the surface. What you receive is a georeferenced map showing exactly which areas of a roof, panel array, or structure are behaving differently from their neighbours — and a report explaining what that difference means.

• What is a thermal imaging inspection?

  A thermal imaging inspection uses a drone-mounted infrared camera to detect temperature differentials across the surface of a building, roof, solar array, or structure — revealing problems that look completely normal to the naked eye.

  Moisture trapped under a flat roof membrane, a failing solar cell, missing insulation behind a facade, an overheating electrical connection: none of these show up in a standard photograph, but all of them produce a measurable heat signature that a thermal camera records. Ireland's commercial building stock — large-footprint warehouse units, damp concrete industrial buildings, and ageing apartment complexes — presents these faults routinely, and thermal inspection is one of the fastest ways to locate them across a whole site.

• Thermal imaging or thermography: is there a difference?

  In everyday use the terms are interchangeable, but there is a technical distinction. Thermal imaging refers to the camera technology — the infrared sensor that detects heat energy at a surface. Thermography is the professional discipline of capturing, processing, and interpreting that data to reach engineering conclusions. A trained thermographer understands optimal capture conditions, the physics of heat retention and emission, and how to distinguish a genuine defect from a legitimate heat source such as a roof vent or downpipe.

  All Engineers With Drones operators carrying out thermal work are trained thermographers. Attaching a thermal camera to a drone does not produce actionable results without the expertise to plan the flight for the correct thermal window, select the right payload for the asset type, and interpret what each anomaly actually means for your building or infrastructure.

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• How does it work in practice?

  For most jobs, the site visit involves a small team — typically 1-2 engineers — and takes a few hours. We cover all 32 counties and are authorised by the Irish Aviation Authority for commercial UAV operations. For a thermal building or roof inspection in Ireland, the work is usually done at night, roughly two to three hours after sunset when the heat differentials are most pronounced. There is no scaffolding, no access equipment, and no requirement to close off areas or take the building out of service. The drone works from outside. Your staff don't always need to be on site.

  Before the visit we'll ask a few straightforward questions — the size and type of structure, access to the site boundary, and any known hazards. On the day, we just need a point of contact and access to fly from the perimeter. Deliverables — a georeferenced thermal map with every anomaly GPS-tagged and a plain-English report — are typically turned around within a few working days. On mobilisation speed, we can usually get to you quickly; if you have a specific urgency or weather window in mind, call us and we'll confirm availability directly.

• What do I actually receive?

  Short answer: whatever you need. We don't do off-the-shelf solutions. Every job is customised to the needs of the client. But people rarely ask us for a folder of raw images. Clients typically receive a georeferenced thermal orthomosaic — a precisely stitched, GPS-registered map of the entire surface — with every anomaly located by coordinates and explained in a plain-English report. Your facilities team, engineer, or insurer can navigate directly to every flagged area on site.