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Wednesday, January 19, 2022
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    Leak detection – Where is that water coming from?


    Decades ago, the Inside Guy was called by a real estate broker to check on a home being prepped for a buyer.

    It seems there was a periodic leak that showed up as stains on the ceiling drywall. The broker needed a solution and the Inside Guy thought he could provide it. After six months and three “fixes,” the problem still was not solved so the Guy turned to a then- new technology called infrared scanning.

    Within a week the thermal imaging technician had been on the site and was able to trace the source of the intrusion – a missing piece of counter-flashing on the east side of a large masonry chimney.

    Water only came in when a storm came out of the east, then it followed some attic framing to a point above the living room 25 feet away! We often see builders spraying water against siding and windows and homeowners dapping gallons of tar on roofs to pinpoint leaks that can’t be found.

    Tracing leaks has become an avocation for many of our listeners this summer as we have had numerous large rain events. The issue described above is typical in many buildings where the actual source of a leak is far removed from where the water “shows up” in the finished area.

    The Guys have had countless emails from frustrated listeners who have hired first a roofer, then a siding professional, then a gutter guy, etc. to “cure” a leak with no success.

    The Guys always say if the only tool you have is a hammer, then everything looks like a nail. The same thinking applies with many “specialists” you might hire. Their expertise and range of thought is often limited to what they do every day.

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