Replies

1. 
   calvin | Jul 20, 2022 07:46am | #1

   Extreme dampness and perhaps way more smoking than one person that never went outside could do.

   Or the same damp or humid conditions and some house cleaning over a whole lot of years.

   Or a plant fetish coupled with the above.

   What you can’t see might be worse, behind that drywall. The stud and joist spacing seems extreme. Was this a double wide?

   If a framed dwelling, concrete floor? What climate is this in?

1. 
   bbx | Jul 21, 2022 05:39pm | #2

   thanks for the reply,
   its a raised foundation in hot dry sacramento, there was a water leak that caused a 4x8 sheetrock piece to collapse off the ceiling. but that was recent. the looks of the discoloration looks like a very long term project, house was built in the 1940's.
   I saw enough to not follow up anymore.
   https://www.redfin.com/CA/Sacramento/3509-38th-St-95817/home/19421275?utm_source=myredfin&utm_medium=email&utm_campaign=instant_listings_update&riftinfo=ZXY9ZW1haWwmbD02MDkwNjMwOSZwPWxpc3RpbmdfdXBkYXRlc19pbnN0YW50XzE1JmE9Y2xpY2smcz1zYXZlZF9zZWFyY2gmdD12aWV3X2RldGFpbHMmZW1haWxfaWQ9NjA5MDYzMDlfMTY1NzY1NTk2M18yJnVwZGF0ZV90eXBlPTEmc2F2ZWRfc2VhcmNoX2lkPTY0NjI0MTkyJmxpc3RpbmdfaWQ9MTUzNTA4MTA1JnByb3BlcnR5X2lkPTE5NDIxMjc1JnBvc2l0aW9uX251bWJlcj0w

1. 
   calvin | Jul 22, 2022 06:38am | #3

   Good move.

2. 
   MattMillham | Jul 23, 2022 06:00am | #4

   That looks like a classic case of thermal tracking.

3. 
   bbx | Jul 23, 2022 03:08pm | #5

   thanks MM, sounds like that could be it, guessing from age of house and hot sacramento, houses were built with no insulation and.... 1 wall heater in the center of house for heat!!

   https://airworksmt.com/blog/thermal-tracking-what-it-is-and-how-to-prevent-it/#:~:text=Thermal%20tracking%20is%20common%20on,develop%2C%20thus%20attracting%20dust%20particulates.