Silicon caulk being applied to exterior roof duct work.
To keep water from entering a home via a duct that is breaks the plane of the roof, and extra flange is often added as a first defense to shed water. This flange functions better when caulked.
Size: 4752px × 3168px
Photo credit: © Brad Jones / Alamy / Afripics
License: Royalty Free
Model Released: No
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