Unfortunately, timber behaves in a lot of ways according to the moisture content in the air. As a result, splits and cracks sometimes occur.
Please see this article which explains this:
Please also see these pages:
Much of the cracks and splits can be solved with the application of a top quality treatment, please see this page for details: Log Cabin Treatment.
Answers to most questions can also be found by typing into the search bar in the widget or our info center or please contact us to help you further with any questions you have.