How to dry out garden room

[Peasea]

Hi there

We had water ingress to the garden room/outbuilding last winter and I’ve finally managed to get the laminate floor up.
The concrete sub floor is damp but not soaking. I have a rented fan as well as a domestic dehumidifier on in the room.

The question is, do I close the windows while the tools above are on, or do I open the windows too? Will that not then make the dehumidifier pointless?

Please advise

 

[Wayners]

Need to close off room with dehumidifier. Need to create dry air and that won't happen with windows or doors open. Will be just wasting electric.
With a fan open it up though, but maybe just the door or window. You just need to create air movement with a fan to dry it out

 

[Peasea]

Thanks for your help, I’ve noticed that the floor is drying out quicker this way with RH in the room down to 55%. But then when I lock the room overnight, I return to 77% relative humidity. I can visibly see the floor looking dryer, but do you reckon this sort of thing takes weeks?