It will be mounted to roof decking, which not more than a year old. Please define "significant load".
Should it hold up in a normal storm?
I really don't have access to the roof. Living in a townhouse has some disadvantages. One being no place to store a ladder.

And really no need to purchase one since any outside maintenance is done by the association. So roof top testing could be problematic.
But I do have access to the attic. I was thinking of try my current CS1 there to see if there is any improvement.