Standing on slide roof

I walk very gently on mine. However, I'm only 170 or so pounds at best. I just step near the edges where the framework is strongest and only when necessary.

Go to the factory sometime. Workers frequently stand on them with no issues at all. It puts no more load on the slide mechanism than somebody standing on the interior floor on one. The roof is usually more than stable enough to to support the load of an averaged sized person.

Why not put a step ladder on each side and a work plank between the ladders (above the slide roof), then you would not take a chance of damage to the roof or slide.

I would NOT work from above.