|How it Works..|
Using a principle called neutron moderation, scientists discovered that tiny amounts of radiation can be used to detect hydrogen ions, which in a roof system typically indicate water. Neutrons emitted from an isotopic source collide easily with the highly exposed neutrons of hydrogen, and these collisions slow their travel. By detecting changes in the speed of the emitted neutrons, we can safely identify moisture damage deep within the roof.
To accurately analyze the data from this extremely sensitive nuclear detection technology, we must account for the original hydrogen content of the roofing materials. By utilizing small amounts of invasive testing, hydrogen readings are established for dry materials. After dry material baselines are established, elevated hydrogen counts indicate moisture damage in the roof system.
A nuclear roof moisture survey is typically conducted on a 10’ x 10’ grid pattern across the entire roof surface. On ballasted roofs, the gravel will be temporarily moved aside in order to place the nuclear gauge directly on the roof surface. Readings are taken at each grid intersection to build a hydrogen inventory of the roof system.
Next, we tabulate and analyze the collected data using statistical and visualization software. Using these diagnostic tools, we convert the raw data produced by the nuclear gauge into an AutoCAD® map of moisture penetration inside the roof system.
|Nuclear moisture detection is the only accurate method for testing ballasted roofs and the underlying sections of multiple-construction roof systems.|
|Nuclear surveys provide excellent information at low cost, and substantially improve your roofing options.|
|Nuclear Surveys typically cost only about 1% of the cost of new roofing (3 to 10 cents per square foot versus $6.00 to $10.00 or more per square foot for roof replacement).|
|Roofing decisions often involve tens of thousands, or even hundreds of thousands of dollars.|
|Professional nuclear moisture detection gives you the information you need to base your roofing decisions on accurate, scientific information rather than assumptions and opinions.|
|Questions about nuclear roof moisture surveys
and how they can help save you money?
Please call us toll free and at 800-879-1964.
|Additional Information & Literature:|
|For more information download our Nuclear Roof Moisture Survey brochure.|
Facility Managers: Roof Problems? Critical assets need
See how to save big money with roof moisture surveys.
Maintenance: How to care for your facility's most
See The Importance of Roof Maintenance.
post-construction Building Commissioning and Acceptance
Testing services to ensure
optimum performance from your building and maximum return on your facility investment.
|What are the Operating Principles of Infrared Roofing Thermography? Read more..|
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