Hello Alexandru-Cristian,
We have emailed and tried calling you but we have not been able to reach you.We are sorry this is not what you were expecting. As these boards are intended for external use only, due to the treatment we use, the boards would have been kept in our yard before being delivered and will not be effected by moisture. We also would not recommend them for flooring, moreover internal flooring, as this is not their intended use, please see here for how we would apply this product:
Cladding
Please do get in touch if you need to return these at all. We are sorry again this did not meet your expectations, please do let us know if there is anything we can do to help. We would like the opportunity to work with you to find the right product for you.
Many thanks again
Genei
Customer Services