I had my gutters professionally cleaned out, since I don't like climbing
ladders. Their method was to climb on top of my roof (a regular slanted
roof with standard 25-year shingles). I'm just wondering if this is harmful
to the roof, or is that just a myth?
I can see why they do this, which is to save time. Is it standard practice
for gutter cleaning services to climb on the roof to save time? Next time,
should I find a service that does not climb on the roof?