Can thermography be used before purchasing a building?

Yes. It can be incorporated into a more comprehensive technical due diligence assessment where conditions justify its use. It should not replace a broader evaluation of the property's major building systems.

Can infrared thermography be used during construction?

Yes. Thermal imaging can be useful during construction or rehabilitation to investigate selected building-envelope, insulation, moisture and thermal-performance conditions, particularly when used at an appropriate stage and under suitable environmental conditions.

Can thermography be used after building-envelope rehabilitation?

Yes. Post-rehabilitation thermal imaging can help evaluate surface-temperature patterns and identify areas warranting further investigation. Its usefulness depends on the work completed, building assembly and conditions present at the time of the survey.

What conditions are required for effective building thermography?

Useful thermal imaging depends on factors such as indoor and outdoor temperature differences, weather, solar exposure, wind, recent precipitation, building operation and the material being examined. The appropriate conditions vary according to the objective of the investigation.

Why is temperature difference important?

A sufficient temperature difference across the building envelope can make thermal anomalies easier to distinguish. If interior and exterior temperatures are nearly identical, some insulation, air-leakage or thermal-bridge conditions may be difficult to observe.

Can sunlight affect thermal imaging?

Yes. Solar radiation can heat exterior surfaces unevenly and create temperature patterns unrelated to the building defect being investigated. Depending on the objective, inspections may need to be scheduled to reduce or deliberately account for solar effects.

Can wind affect thermography?

Yes. Wind can alter surface temperatures and influence air movement through building-envelope deficiencies. It can either reveal or obscure certain patterns depending on the investigation, making weather conditions an important part of interpretation.

Can rain affect a thermographic inspection?

Yes. Recent or active rainfall can significantly influence surface temperatures and moisture conditions. Depending on the investigation, this may be useful or may complicate interpretation. The timing of the survey should therefore reflect its technical objective.

Is thermography effective in every season?

Thermography can be performed in different seasons, but not every diagnostic objective is equally suited to every set of conditions. The inspection should be scheduled when environmental conditions provide useful thermal contrast for the issue being investigated.

Why is professional interpretation of thermal images important?

A thermal image displays temperature differences, not diagnoses. Similar patterns can result from very different causes. Proper interpretation requires understanding of building science, construction assemblies, materials, environmental conditions and the limitations of thermal imaging.

FAQs Archive - Page 4 of 95

Can thermography be used before purchasing a building?
Can infrared thermography be used during construction?
Can thermography be used after building-envelope rehabilitation?
What conditions are required for effective building thermography?
Why is temperature difference important?
Can sunlight affect thermal imaging?
Can wind affect thermography?
Can rain affect a thermographic inspection?
Is thermography effective in every season?
Why is professional interpretation of thermal images important?

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