This is a very badly designed/assembled woodstore. The one I was sent had the slats on the roof UNDER each other so that water just pours through the roof onto the wood even in the lightest of rain. A couple of days logging is now set back weeks because the logs are soaked and I have to find a way to make the roof watertight, either by replacing the roof slats in the correct positions or using some kind of cladding.  Awful.