I am building a small (18 X 24 foot, internal) scribe-fit hunting cabin in northern Pennsylvania. The logs are Norway Spruce, and average about 10 inches in diameter. I have not taken any course, and have largely followed F. Dan Milne's book on building the Canadian log home, but have consulted several other texts. The walls are up and we are working on the loft. By and large it would be difficult to get much more than a butter knife between the logs in adjacent courses of the walls. The long grooves are insulated with glass wool. This building is for my own use. Though it does look pretty, it need not, and it will not be sold. I'd appreciate your opinions on whether it is necessary to caulk the small space between the courses, to keep moisture out of the insulation and the long grooves. On the inside? On the outside? The question is driven by considerations of longevity, not cosmetics, and I have not seen it addressed in any text I have consulted.
Thanks,
Mike J.
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