Cabin logs will naturally expand. This has caused them to grow over tolerance above the windows, normally hidden by the surrounding fascias.
Please note that cabin logs can also contract depending on the time of year.
The movement of the logs is dependent on the time of the year. This is because the movement is controlled by the moisture level within the timber. This is where the importance of the quality and level of the treatment comes in, as the treatment will help create a barrier that helps the timber cope with the moisture it is able to take on and expel.
For the treatment of our log cabins, we recommend you would need a depth of 80-120 microns for the treatment.
Please see the below for further information on this:
Sometimes, this can also happen with the smaller logs between windows and doors. Due to these being significantly smaller than the rest of the logs in the building these can expell more moisture quicker, this can then cause them to move at a different rate. This is not something to be concerned about, as once the cabin is built and treated, this will start to move as one complete unit.