[hubballi]

I have a polycarbonate lean to but I have noticed that the next day there is considerable condensation on the frame and sheets. I can't have the window open because of the cold so how can I get around this ?

[mumofstig]

As long as it's not freezing then you open the door a little bit during the day, and then close up before it gets dark.

Hang a piece of fleece across the doorway if you are worried about cold draughts