During the day, the sun radiates energy onto the roof surface and into the roof substrate, and then at night, the roof radiates this heat back into outer space. This is called radiational cooling. Areas of the roof that are of a higher mass (wet) retain this heat longer than that of the lower mass (dry) areas. Infrared imagers can detect this heat and “see” the warmer, higher mass areas, during the “window” of uneven heat dissipation.
We scan the roof with sensitive infrared cameras to detect the sources of heat and record them for later analysis. Since we can “see” all areas of a different mass immediately, we can then mark the roof and/or save infrared images for report use.
Infrared imaging has been the method of choice for identifying and defining moisture problems in your roof. Thermal Imaging will enable you to develop a more sophisticated roof asset management program, assess the damage and make more informed decisions regarding roof budgets to plan the repairs that is most cost effective.
As water enters your roof through faulty welded seams, tears, cuts from debris and poorly sealed penetrations leak will occur. Other sources of leaks are from failed flashings and caps, which saturate the insulation. This condition creates water laden insulation where the water becomes trapped below the roof substrate. If left in disrepair, the deck (concrete, plywood or metal) absorbs or traps water in the case of wood, the deck rots out. In the case of concrete the water seeps through to the metal members and starts the rusting process. Wood deck rots, metal deck rusts and resulting water intrudes into the building’s interior causing more damage. Infrared thermography is useful in locating these moisture intrusions for cost saving repairs.
By using infrared thermography, we find the trapped moisture and mark the wet areas so that repairs can be made surgically. This can save you money because you may not have to replace the roof before the end if its life expectancy. We identify the areas of concern by marking paint directly on the roof, repair areas can be seen by anyone standing on the roofs after the survey is performed.
Put our experience and knowledge to work on your roof. US Infrared Inspections has level 3 ITC certified thermographers. Our certification is in accordance with ASNT Recommended Practices No, SNT-TC-1A personal qualification and Certification in Nondestructive Testing 20011 Edition