mockturtle wrote:
I wash my roof on my hands and knees with a scrub brush and a pail of soapy water, with the hose hanging on the fittings. If you start at the front and work your way back you won't be standing on any slippery surfaces.
That's exactly the way I wash ours (no brush, fiber towel). I bought a pair of velcro knee pads which are so comfortable as my knees start to hurt on the hard roof surface.
To OP, our rear ladder has a 300 lb. weight limit, at 180 lbs, I'm OK. I don't use the extension piece, I will put my six foot bifolding ladder at the base of the attached ladder and climb up. Seems a lot safer and sturdier for me.
MM.