in.it.studios - contemporary outdoor buildings ranging from Garden Rooms, Home Offices, Garden Studios, a larger Granny Annexe or even a eco Home, all installed to your very own bespoke requirements. (uk)
I like the idea of using corrugated roof with clear - so light can get in... but I guess it will depend on what material it is? I am happy to clean it every so often - but will need a ladder!! Like this shape and simplicity..