Originally Posted By: rking This post was automatically imported from our archived forum.
William,
Must have been all the snow you got down there last year 
Tough call. Looks to me like there is a general problem with the fasteners rusting.
Is there a possibility that the hose bibb used to be in that direct area and has been moved?
How about the vent stack for the plumbing, where is it in relation to this problem?
-- Muskoka Home Inspections
"Wisdom is the Anticipation of the Consequences"
Steering Committee Member At Large
Originally Posted By: Blaine Wiley This post was automatically imported from our archived forum.
Just curious, but is there an inground sprinkler system. I found a similar condition on the rear of the house a couple of weeks ago, and when we turned on the rear zone, the heads were spraying right on to the siding in the area. Fortunately, the other areas of the house were concrete block and stucco.
Originally Posted By: rstephens This post was automatically imported from our archived forum.
Mildew from the oak trees my sound like a stupid suggestion but is there any noticeable roots around the area and is the tree that is touching the roof on the same side of the house?
Originally Posted By: dvalley This post was automatically imported from our archived forum.
Will,
Make it real simple at this point. Recommend to your client that a carpenter should remove one sheet of T1-11 to investigate and evaluate. 
Originally Posted By: wcampbell This post was automatically imported from our archived forum.
Good try Russel. No the tree in the roof photo is on the back side of the house. I looked for signs of roots and possible recently removed bushes that may have been against the siding. Alas, no luck.
Originally Posted By: mpatton This post was automatically imported from our archived forum.
Will,
Sounds like the gambit has been run on the exterior and plumbing, how about other underlying items. 
Do you have a picture of the interior side of the wall? How recent has the exterior and interior been painted? How old would you guess that the T1-11 is? Am I correct that this is the North side of the building since you commented on the moss? (long thread) Moss requires moisture to grow.
Inquiring minds want to know!
-- Michael Patton
AA Home Inspection
Serving Northern KY & Greater Cincinnati OH
Originally Posted By: ecrofutt This post was automatically imported from our archived forum.
Without being there to actually look at it, I don’t know if this applies, but:
T-111 siding is supposed to be painted/sealed on the surface, both ends and about 6"s up the backside.
I've seen a few cases of where this siding, not painted/sealed on the ends or backside started rotting from rain dripping down the siding around onto the end and wicking up into the wood.
Given you've already eliminated most other causes there's a good chance this one piece of siding (or more) wasn't properly painted/sealed before installation.
