Ok, a little more information (that I should have listed already), in
addition to my original post:


· The rafters are 2X4s, without a grade stamp.
· The rafters are spaced 16" OC.
· The roof slopes at a 45° angle.
· The full span (from the outer walls to the roof point) is approx
18'.
· The current knee wall occurs in the middle of that span at approx
9'.
· Over the rafters (under the shingles) are planks that are 7 1/2"
wide and 3/4" thick.
· The planks run the length of the house (across the rafters).
· On top of the planks, looks to be wood shingles (??).
· Covering that layer, is likely a couple asphalt shingle jobs.


Hope this helps paint a better picture. Thanks for the input so far.
BTW, how much would it be to get someone out to evaluate this?
Ballpark figure is fine. I'd like to get this started, but from what
I've heard so far, I wasn't wrong in thinking this could develop into
a much larger problem. So, doing it the right way and getting a
specialist to take look, probably would be wise.

Thanks again, and if there's more info I could provide, please ask.
Holden