I have a commerciasl building 25' wide, 65' deep. Want to construct a rooftop deck 25' x 25', which will be near the front of the building (say starting 5' back from the front parapet). There needs to be a 'castwalk' from the rear of the building roof edge, which wil connect to the deck, and, to stairs coming up from second floor.
The 'catwalk' will bee approx 35' long.
The building has a brand new roof, covered wiht rubber membrane that extends to and over the edge ot the building.
I am thinking I need some sort of truss system that will go from one side of the building to the other (25' wide).
What are suggestions regarding truss material, and how to secure to the building, without damaging the new roof. Cost is, of course, a concern too.
Any suggestions appreciated.
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