We built a conservatory about a year ago and the roof now needs cleaning.

Cleaning the sides nearest the lawn is ok, the problem is that the conservatory is built against two right angled walls of the house which makes it impossible to get to the far side of the roof to clean it. Unfortunately, there are no windows on the main house near enough to obtain access to the far side of the conservatory roof.

Are there any cleaning systems in the market to help overcome this problem? I also presume no part of the conservatory roof is strong enough to walk on ie hooking a ladder on the top of the roof and climbing up it so that the other side can be cleaned?

Joe