A Mysterious Roof Leak

by Roofer911.com

bad step flashing causes roof leakCustomers called us to inspect their old house because they weren’t sure if they had a roof leak problem or a condensation buildup. In their laundry room we found beads of water hanging from the wooden ceiling, which had rotted away in some places. Just below the water collecting on the ceiling, we found that the dryer vent had a diverter that allowed the hot moist air from the dryer to escape into the room they had used this to warm up this uninsulated space, but not recently. So what was the water’s source?

 

We went to the second floor, which had no access to the attic space over the kitchen and laundry room. So we cut a hole through the wall into the space, and worked our way to the area over the laundry room wet spot. The insulation was wet, and light from below shone through the rotted area. Turning over to look up in the space was quite tricky as it was right near the eaves. Above the wet insulation, the ceiling structure was also wet and marked with black and white mold and mildew.

Following the water trail seemed to be pointing to roof repair to solve the problem.  From outside, we inspected where the siding of the second story met the roof over the laundry area. We found that the aluminum step flashing flashing that protected that juncture was old and corroded. The mysterious laundry room moisture problem had been traced to a roof leak.

           steven briesemeister

 



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