So we have an S-2, RV storage building that is almost constructed, they have sprinklers, they have just submitted to Condo all the units. would the "airspace ownership " kick this over to a private garage and require the 1-hour separation between units, as long as each unit is under the 1,000 SF? or does it stay the S-2 with just the metal between units?
I'd argue that it should of always been an S-1.
S-2 parking garages are truely that, a parking garage. Storage of boats, RV, motorized sports equipment, etc. should fall under an S-1.
S-1 is specified as:
311.2 Moderate-Hazard Storage, Group S-1
Storage Group S-1 occupancies are buildings occupied for storage uses that are not classified as Group S-2, including, but not limited to, storage of the following: ...
S-2 is specified as:
311.3 Low-Hazard Storage, Group S-2
Storage Group S-2 occupancies include, among others, buildings used for the storage of noncombustible materials such as products on wood pallets or in paper cartons with or without single thickness divisions; or in paper wrappings. Such products are permitted to have a negligible amount of plastic trim, such as knobs, handles or film wrapping. Group S-2 storage uses shall include, but not be limited to, storage of the following: ...
With the tremendous amount of fuel loading associated with boats, ATV's, and RV's (think plastics, gas, LP tanks, firewood, compressed bug spray, etc.), the hazard is not similar in nature to the defining characteristics provided in 311.3 (above). S-2 is "for the
storage of noncombustible materials such as products on wood pallets or in paper cartons with or without single thickness divisions; or in paper wrappings. Such products are
permitted to have a negligible amount of plastic trim, such as knobs, handles or film wrapping."
Like boats, most RV's on today's market are predominantly clad in plastics, fiberglass, and other synthetic materials that are highly combustible. By comparison, conventional automobiles are predominately metal skinned with glass. This is not to say conventional cars pose a low fuel load, but they are not as readily ignitable as a boat/RV/ATV/etc.