Every time we go up to work on the cabin, we have wasps in the windows. We end up killing all we can find, but they never seem to go away. The house is sealed, chinked, etc. any ideas how they are getting in? Or are they hatching from larva?
Quite often in log homes people use tongue and groove material for their ceiling. Where the boards fit together there may be a "V" groove that extends out past the gable of the house. Sometimes one or more of those V grooves will be inadequately caulked. As it gets colder the critters will feel the warmth coming out from that opening and will follow the warmth toward the source. If you had an energy audit done with a FLIR camera, those pictures will identify where the air leak is. Otherwise, you may need to take some matching caulk and fill each of those joints. Best of luck.
Thank you Rich for the info. We do have tongue & Groove on our ceiling. Even though it was done by pro's I can see your point as very valid. It gives me a place to start. Thanks. David
We had the same problem in our house, had to kill over 30 a day in our bedroom. It turned out to be a nest outside our window in the eaves of the roof. They were getting in through the cracks around the window. The only advice I have is to get a good pest control evaluation of your cabin.