I recently purchased a log home. Only in the winter time, with 3 feet of snow up on the roof, I had problems with water drops coming through the ceiling, we had really bad rainy days, but no leaks only in the winter time. I paid a couple of roofers to come and see the problem but they claimed that the logs were never caulked nor chinked. On one of the dormers they seen ply wood and a roof flashing exposed , he claims the the gaps on the logs had to be chinked, do you think that could be a facto