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Aerial Infrared Thermal Imaging:
With an aerial infrared thermal image, the guesswork is removed from locating any water saturated areas of a commercial roof (red arrows, water infiltration). Notice the level of sensitivity that is offered from our camera as it exposes the structural elements of the building
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Cost Savings:
After being awarded a Commercial roofing project in the Chicago vicinity, we were informed our client saved $80,000.00 by avoiding a complete tear-off of the existing roof assembly. Prior to bidding, an aerial thermal analysis was completed. It was determined only a small percentage of roof insulation needed to be removed and replaced. The roof was then protected by installing a black, vented, EPDM commercial roof system.
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Environmentally Aware:
A study done by Nationwide Foam in Framingham, MA estimated that over 5,000,000 cubic yards of rigid foam insulation board is wasted each year in the United States. Considering that this material does not compress, over 5,000,000 cubic yards of landfill space are being filled annually. A Dura-Ply Vented EPDM Commercial Roof Drying System is friendlier to the environment, in that it eliminates unnecessary landfill waste.


Infrared Physics 101:
During the day, the sun’s radiant heat warms the roof system. By sunset, the roof transmits its heat back into the atmosphere, called radiational cooling. Areas of the roof that are wet retain this heat longer than dry areas because of the increased wet mass. Our Infrared camera detects this heat to uncover the location of the warmer, wet areas.


Example A
#1 This roof image is reporting it has 3 leaks toward
the drain areas. Hmmm, I wonder where they are?

#2 This image tells us that the roof is possibly
saturated. Cores were run after this shot was taken
and we learned that the bottom roof was completely
dry, while the top was soaked.



Example B
This church had 2 leaks, these roof leaks jump
out at you...notice how sensitive the camera is,
as it picks up the pattern of the bar joints.




The "roof-walk" method for infrared moisture detection is not the best procedure for accuracy reasons alone. The technology is the same, in that the infrared camera detects trapped moisture that is cooling at a lower rate than the roof’s surface area; but, the average time in which it takes to survey the complete area of roof is much greater. From an aerial position, we can capture an entire building in ten seconds...the "roof-walk" method would take 4-6 hours.

Consequently, with the extended time it takes to survey one section of the roof, the other areas are cooling; therefore, questioning the accuracy of the method, not the infrared technology.

Other Advantages of Aerial Infrared:

• Access to multiple levels of the roof at once.
• High-angle images lessen reflection problems.
• High-resolution images capture large areas at once


Dura-Ply Roofing
151 South Rohlwing Rd
Addison, IL 60101

630.953.8889

info@dura-ply.com