Without the need for roofing felt (which would have added another 20Kg!) it’s less than 50Kg including the barge boards. Which I don’t think is bad. The weight was bumped up a bit by extra wooden battens for bracing and, of course, the castors, etc. But nothing dramatic. The roof height was only raised about 3 inches.
The whole thing is easily manageable. I can push it up the ‘slope’ single handed – and I’m 5′ 4″ and 10.5 stone dripping wet. Left to its own devices it’ll roll slowly down on its own. The slope is only about 7 degrees. Enough to avoid standing water but not so steep so as to cause weightlifting type effort to get it back.
I’ve already rigged an old 10Kg counter weight vertically on a pulley inside the shed which almost negates any effort.
Literally 30 seconds to close and secure (once the mount is ‘homed’) and another 30 to close the ‘gates’.
I need to give a bit of thought to the rear barge board which, because of the need for a good weather seal, just clips the rear wall as it goes over the top. I can’t decide on a hinged board or just a rubber trim but since I haven’t yet had any water ingress despite several heavy downpours I might just leave it be.
My only issue is what to do with the water that runs off the front during rain!