Infrared Thermography

Pie utilizes infrared thermography as a non-destructive measuring method for the diagnostic examination of building envelope assemblies and systems. Applicable to new construction projects and renovations, the technology uses infrared cameras to detect temperature differentials and subsequent thermal loses between interior/interior and interior/exterior spaces.

Infrared thermography is most effective in detecting missing, damaged or non-performing insulation if a minimum condition of at least 10°C stable temperature difference between the heated or conditioned space and the outside air is provided.

Air Barrier Diagnostics

As a diagnostic supplement to air barrier testing, infrared thermography is typically performed under both positive and negative pressurization and in accordance with the following recognized standards:

  • ASTM C1060: Standard Practice for Thermographic Inspection of Insulation Installations in Envelope Cavities of Frame Buildings
  • ASTM E1186: Practices for Air Leakage Site Detection in Building Envelopes and Air Barrier Systems
  • ISO 6781: Thermal Insulation – Qualitative detection of thermal irregularities in building envelopes – Infrared method

Areas of thermal discontinuities are easily identified by this diagnostic method, which informs repair recommendations of the air barrier system to better condition indoor environments for occupant comfort and improved mechanical system performance.

Infrared Thermography Roof Scans

Pie performs infrared thermography roof scanning for the purposes of identifying and documenting infrared signatures indicative of wet insulation/cover board substrate materials. Infrared thermography scanning is typically accomplished during night hours to allow for the benefits of daytime solar heating to create the required temperature differential. This procedure is performed in accordance with the following recognized standard:

  • ASTM C1153: Standard Practice for the Location of Wet Insulation on Roofing Systems Using Infrared Imaging

Areas of potential wet substrate materials are identified during this process and are semi-permanently marked at a point centrally located within the anomaly for subsequent roof coring to verify infrared scan results. It is important to note that infrared thermography scanning will have limited effectiveness in detecting sections of elevated water content in substrate materials for green roof assemblies, roof paver areas, areas where photovoltaic panels are flush mounted, or areas where walkway pads are installed.

Infrared Thermography Advantages:

  • Addresses increased design and construction complexity, risk mitigation, and demands for improved building enclosure performance.
  • Requires OPR development for both Fundamental and Enhanced BECx.
  • Mandates independent, third party design peer review.
  • Prescribes mandatory BECx Performance Testing Requirements.



“Our recent and extensive experience working with Pie on the DIA HTC project for four years of construction, included an exterior enclosure envelope consisting of curtainwall, cable wall, storefront, architectural precast, hot fluid waterproofing, TPO roofing, and metal panel. The Saunders team could not have been more impressed by the in depth knowledge the Pie team provided, and also the level of professionalism maintained during a project with many difficulties. We were very pleased with the outcome of the project from both a construction standpoint and a relationship standpoint with Pie, and look forward to working with them on future projects.”

– Grant Stucker, Saunders Construction