Just wondering how you guys determine what is in a ceiling where there is no attic or other access to the space? I had one recently the clients insisted squirrels and my best interpretation of their description of what they heard (without hearing what they did) was bats (which I don't do). After removing 4 red squirrels that may or may not have been in the ceiling (no obvious access point, but they definitely could get between foundation and siding if they wanted to) they still have "scratching noises" as much or more than before I started. There are no vents of any kind in the whole cabin and the log siding is caulked well with no squirrel sized access holes (other than between foundation and siding, which I have since sealed after removing the squirrels and monitoring soft blocking). There are a few small access points that bats could exploit, but how do you go about proving this is what it is when there is no access to where the hear the noise and no guano to be found anywhere. My guess is start removing soffit, but since there is DEFINITELY no way squirrels could access there, and I don't do bats, I stayed away from it.
I'm stumped and they have a bat guy coming to do an inspection...I'm stumped and removing myself from the situation.
Curious how you guys would go about this one?