I had a bit of a shock last week when my WFP system was down and I had to use
my ladders. The frames were really dirty when I looked up close.
When I was doing them trad I always gave the frames a wipe all over. when I went WFP I avoided the areas above the vents, and just below them too.
The vents looked like they were begining to grow a moustash, dirt had gathered in the last 3 months. Above the vents was really minging. The other place that was really dirty was the space over the opener. Some people leave the windows on the catch leaving them open about half an inch. If you wash them water will get inside. Most of my work is white plastic. Now if I'm going to maintain my previous standard, I will have to go up ladders periodically to clean the top of the frames.
Unless that is anyone can suggest a safer way of doing the job.
Suggestions welcome. Dai