Cracks in logs are known as “checks,” and are a natural occurrence in log homes.  A check is a crack in the surface of the log, which does not go through the diameter. Checks are small and do not present a structural problem in the home. Checks can be small or they can be rather long and noticeable. Usually they are considered a characteristic of logs, adding to the rustic appearance. However, checks on an upward curve can possibly collect rain or snow and should be sealed. Checks on a lower curve can be sealed if you choose. We do offer a Sashco product called Conceal that works perfectly for checks and it’s available in a variety of colors. It can be used inside or outside.