Chris Bernhardt Posted April 7, 2009 Report Share Posted April 7, 2009 Some IR pics of wet ceilings in a POS house. They only knew of the leaking at the skylight not the leaks over the kitchen, dining, living, hallway and bedrooms. There was no visible wetness on the roof decking and framing in the attic although there was some staining. I probed the decking and framing with my moisture meter, which indicated about 14% MC in my small sample. Other than the stains at the skylight, there was no visible evidence from the interior that the ceilings were damp. Even looking at the insulation from the attic, it wasn't readily apparent to me things were damp. Click to Enlarge 27.34 KB Click to Enlarge 32.44 KB Click to Enlarge 45.22 KB Click to Enlarge 26.29 KB Click to Enlarge 32.02 KB Click to Enlarge 29.27 KB Click to Enlarge 31.14 KB Click to Enlarge 30.32 KB Click to Enlarge 23.16 KB The interesting thing was that I scanned the interior first before I turned the heat on (interior temps started at around 45 degrees) and found some things, but after I stepped the temperature up to 60 degrees, a bunch more damp areas popped out. It was great example of moisture's thermal lag. Also I did not feel any humidity, but the vapor pressure was up over 14 millibars. Chris, Oregon Quote Link to comment Share on other sites More sharing options...
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