Nuclear Roof Moisture Surveys are a cutting-edge approach to ensuring the longevity and integrity of your roofing systems. This non-invasive technique offers a fast, accurate, and cost-effective method for detecting moisture within commercial roofing systems, helping to prevent potential damage before it becomes a significant problem.

What is a Nuclear Roof Moisture Survey?

A Nuclear Roof Moisture Survey is a diagnostic technique that utilizes nuclear gauging to measure hydrogen levels (typically indicative of moisture) within a roofing system. This method employs a small, safe amount of a radioactive isotope that emits neutrons. These neutrons interact with hydrogen atoms found in water, reflecting back to the gauge where they are counted. The higher the count, the more moisture is present.

How Does It Work?

The nuclear roof moisture survey process involves a technician moving a handheld device across the roof surface. The device emits neutrons into the roofing material. When these neutrons collide with hydrogen atoms, they lose energy and are scattered back towards the device, where they are measured. The rate at which these neutrons are scattered back indicates the amount of moisture present in the roofing material.
  1. Preparation: The survey area is delineated, and any potential obstructions are noted.
  2. Measurement: A technician systematically scans the roof, taking readings at regular intervals.
  3. Data Analysis: The collected data is analyzed to create a detailed map showing areas of moisture accumulation.
  4. Report: A comprehensive report is generated, highlighting areas that require attention.

Benefits of Nuclear Roof Moisture Surveys

  • Non-Destructive: This technique does not damage the roof, preserving the integrity of the roofing material.
  • Accurate and Reliable: Offers precise measurements of moisture levels, allowing for targeted repairs.
  • Cost-Effective: By identifying problem areas early, it helps avoid more extensive and expensive repairs down the line.
  • Time-Saving: The survey can be completed quickly, minimizing disruption to your home or business.


Nuclear Roof Moisture Surveys are ideal for a wide range of roofing systems, including but not limited to:

  • Flat roofs
  • Built-up roofs (BUR)
  • Single-ply membranes
  • Modified bitumen roofs

Safety Considerations

The radioactive material used in nuclear moisture surveys is minimal and contained within the device, posing NO HEALTH RISK TO THE OPERATOR OR BUILDING OCCUPANTS. Technicians are trained in safety protocols to ensure the procedure is conducted safely and effectively.

Why Choose Us?

Our team of certified professionals is equipped with the latest in nuclear moisture detection technology. We are committed to providing accurate, reliable, and safe roof moisture surveys to protect your investment and ensure the longevity of your roofing system.

Contact Us

For more information or to schedule a Nuclear Roof Moisture Survey, contact us today. Our knowledgeable team is here to assist with all your roofing assessment needs.