Conservatory Roof Cleaning
If you have specified self cleaning glass for your conservatory it will stay cleaner for longer than untreated glass. However it will need cleaning from time-to-time and depending on the direction your conservatory is facing and where you live, there will be varying amounts of moss and lichens appearing and inevitably algae and bird droppings that will need to be cleaned off.
Most conservatory roof cleaning can be carried out from ground level with telescopic poles fully extended with an attached water feed. A powerful spray using warm soapy water should shift most of the dirt although stubborn stains may need to be gently scrubbed before rinsing in clean water.
Cleaning Polycarbonate Roofs
You will need to be more careful cleaning a polycarbonate roof than a glass one. Common household cleaners can damage the chemical coatings the manufacturer may have applied to shield it from the UV rays. You should check the cleaning instructions provided by the manufacturer or builder, but often these will tell you not to scrub polycarbonate with brushes; to avoid all abrasives and cleaners with an alkaline composition; never to use any petrol based cleaner and finally to avoid cleaning the polycarbonate on very hot days.
Like a glass roof, it is best to use mild warm soapy water on a polycarbonate roof before thoroughly rinsing in clean water.