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Roofing Lab

By combining our technical expertise with industry leading technology, our team of engineers, architects, and consultants are able to collaborate on complex roofing matters across the world to deliver accurate and reliable answers.

Our four cornerstone tests allow us to investigate and research roofing samples through desaturation analysis, impact testing, single-ply membrane analysis, and water column testing.


Roofing Lab Services:

Desaturation Analysis

  • Beginning with general inspection, desaturation analysis considers damages from a holistic standpoint.
  • In reviewing the materials pre-desaturation, our team of experts can identify baseline anomalies, classify material types, and document sample conditions. We then run the sample through our vapor degreaser to remove all asphalt and surfacing to extract the sample’s structural reinforcements.
  • The removal of both surfacing and asphalt allows for a damage assessment to take place on a more detailed level.

Impact Testing

  • Impact testing is used to simulate hail impacts to roofing materials.
  • Impact testing can be used to determine hail damage thresholds.
  • Hail damage to roofing can be hard to visually detect, impact tests aid with identification.
  • Samples are attached to a test fixture to replicate support conditions.
  • Samples are then impacted with various sizes of spherical balls while variables such as velocity and impact energy are monitored and calculated.
  • Impact testing can be used for comparative analysis, which helps to identify mechanical, natural weathering, and defects.

Single-Ply Membrane Analysis

  • Single-Ply Membrane Analysis uses magnification and high-intensity backlighting to assess material conditions.

Water Column Testing

  • Water Column Testing provides analysis of potential water migration through the roofing membrane over a continuous seven-day period.
  • Water Column Testing is performed in accordance with ASTM D7281.


For more information about the roofing lab, please contact Chad Zielinski at 940-395-1838 or czielinski@jsheld.com.


Roofing Lab Overview


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