Yes, meaningfully — hip roofs generally score better on wind-mitigation inspections than gable roofs, and roof shape is a decision that essentially only gets made once, at the design stage of a new build.

It's a coordinated responsibility — the architect and structural engineer design to code, the truss manufacturer and engineer certify the structural package, and the roofing contractor installs and permits to the approved NOA and code requirements. A general contractor overseeing all of it is what keeps those pieces aligned.

Any material is available as long as the specific product carries a current Miami-Dade NOA for HVHZ use — the practical restriction isn't the material category, it's whether the exact product line has current approval.

It's the inspection confirming the deck, sealed joints, and underlayment are properly installed and watertight before the structure is closed up — interior trades like electrical, insulation, and drywall generally can't proceed until it passes.

Not automatically — it depends on the actual features built in (roof shape, secondary water resistance, roof-to-wall connection type, opening protection), but a new build has the advantage of being able to design for maximum credit from the start rather than retrofitting for it later.

Ideally at the permitting stage, alongside the building permit — locking in the NOA package early avoids costly redesign or re-permitting if the decision changes after other trades have already planned around it.

That's a code and safety problem, not just a paperwork one — the sealed engineering package has to match field installation exactly for the connectors' uplift rating to be valid, which is why coordination between the GC, engineer, and framer matters throughout the build, not just on paper.

Both are held to the same current Florida Building Code and NOA requirements — the real difference is that new construction is designed around those requirements from the start, while a replacement is often working within the constraints of an existing structure.