Our little troll is surrounded by trees and gets covered in leaves and grime, so this week she had a good scrub and wax and was fitted with a Maypole roof cover.
This cover was size 14/17 foot and fitted well over the top plus side wind out awning, coming down over most of the front window and around 18/24 inches down the sides. tightening was easy with strap provided and included a cover with velcro fastening for the buckle.
Hope this will keep her clean and snug on top and we can still get inside fairly easily to do regular checks.
can recommend cover for those who do not want to cover completely.