Sill brush with fan jets works well.
i use a medium radius sill brush on a resi neck for soffits/gutters.perfect for the job.i also use it for conny roofs on a 55 degree gooseneck.in fact ive got one booked in for today.
I made a converted sill brush when they first came out.It has 4 fan jets.2 fan jets are used for cleaning, then a secondary line feeds the other 2 fan jets. This is then linked to an electric sprayer for HSC.I can usually knock these fascia cleans out in record timing.
What's HCS ?
conny roof job came up good.virosol first in a sprayer then wfp with sill brush(pencil jets)hooked up to customers outside tap.took me an hour 3pm-4pm.£60.good little add on job to my regular window cleaning work.
Whilst work away on a gutter sofitt fascia job yesterday I thought there must a big market for a proper designed brush for this type of job.Something thin enough to get into gap between gutter and board and something with more jets (maybe 6 ?)What do you think Alex ?ps quite happy to try any prototypes for you