did inside and out of a large conservatory last week , used mop and squeegie for inside roof panels , sponge with white scourer , and a micro fibre rinsed in pure water, main cleaning solution was gg3/sugar soap, with ciff cream added to sponge , they were both smokers, so white roof bars, window frames were yellow, came up great though, customers were happy , make sure you charge right though as it is time consuming.
daz