I am a trad wc & have been asked to clean a number of conservatory roofs. I did my first one yesterday & was pleasantly surprised with the result. Access to the roof was quite good & was able to stand on stepladder. Sprayed windows & wood frame with tfr. After a few minutes I washed down with a brush on a pole extending approx 1.5mtrs, attached to a normal hose. Then used squeegee attached to unger tele pole for areas out of reach & normal squeegee for windows I could reach. My question is what pole/brush do you trad wcs use to clean those harder to reach conservatory roofs that are 3 or 4 mtrs from where you can stand on a ladder?