Infrared Thermal Imaging Scans

Practical Roofing offer a professional Infrared Thermal Imaging Scans service across England, United Kingdom.

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Infrared Thermal Imaging Scans by Practical Roofing

As part of our roof management services Practical Roofing use Infra-red imaging techniques to detect wet, defective or missing insulation within roof structures. The presence of wet or defective insulation inevitably increases fuel bills as a result of the increased heating/cooling demand.
However wet insulation can cause much more serious problems.

These include: thermal-imaging-roofs:

  • Rusting of steel decking
  • Spalling of concrete decks caused by freeze/thaw cycles
  • Splitting of the waterproofing membrane as a result of ice expanding within the insulation


Thermographic infra-red surveys of flat roofing are based on two separate principles, the first of which is that any area of defective insulation (be it wet fibreboard, concrete screed or fibreglass etc.) will have a higher density when wet. This causes the absorption of a greater amount of solar energy than the dry areas, leading to increased heat retention and consequently a higher surface temperature during the evening when the ambient air temperature falls.

The second principle involved is that the defective insulation will have a lower insulation value, and it the internal temperature of the building is higher than the external air temperature this will again cause the roof surface above the defective insulation to be slightly hotter due to the increased heat loss.
These two principles are complementary and allow the technique to be used in different climates and seasons.

Infra-red Thermographic Surveys:

  • Locate wet insulation
  • Find areas of trapped moisture
  • Non destructive testing
  • Critical when providing most effective specification of works on a flat roof
  • Minimise the environmental impact of unnecessary roof disposal

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At Practical Roofing we offer specialist and comprehensive commercial and industrial Infrared Thermal Imaging Scans

Practical Roofing Peace of Mind Service & Guarantee

Practical Roofing has a professional approach which is always the same: a good job and at the right price, with client satisfaction as our priority.

For your peace of mind, our projects are closely managed and Practical Roofing work efficiently to deadlines to ensure the minimum of disruption to your business activities.

Practical Roofing is a professional installer and has thoroughly experienced technicians for all of our key products. You can be assured your investment will be in high quality materials using the correct installation techniques and so designed and guaranteed to last. Our trades’ people are all certified installers and can coordinate with other contractors on-site where required.

Our existing client list is extensive and we are approved and pre qualified installers for many successful businesses and organisations – see ‘About us’ for further details.

Commercial and Industrial Roof Surveys