We have a log home, have been here for 15 yrs. It was new when we bought it. Over the yrs. the house has settled, and over the yrs.there were small gaps that you could see outside, feal cool air coming in. We were told to stuff them with Ocum, a rope(horse hair) that is treated with something, that they use in boats ect. and log homes, it espands(some).Did this for a few years. This was not a kit but builder built it from trees on the land.Now 15 yrs. later I can still feel cool air in spots, ex