Not an ideal solution this - but due to Covid programming, we had to take the decision to powerfloat what will be an exposed, polished concrete floor in the open before the timber frame and covering went in... We then kept everything crossed for a dry, clear day... and thankfully, our wishes were granted and things went as well as can be expected. We'll post a picture of the final result in a few weeks' time - but there's a lot of building to be done before then... and a lot more anti-rain dances to be danced as well...