상황
A facility team documents a rooftop steel deck platform supporting two HVAC units, with an access ramp from the roof hatch and clear dimensions for service access.
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01
Use a parcel polygon to outline the roof deck site
02
Represent the steel platform and HVAC units as separate structures with distinct fills
03
Model the ramp as a walkway with explicit width and add dimension/callout annotations
Use this template for rooftop mechanical equipment layout plans where steel dunnage, platforms, and access ramps need to be shown on a roof site plan.