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Occupancy Group for Storm Shelter???

Papio Bldg Dept said:
It is a 43 unit (R-2) apartment building with a detached 10 stall parking garage (S-2) & 540 SF storm shelter (A-3). It is reviewed under the IBC. When a storm shelter is provided (we have no ordinances, zoning or building requirement), we will review under the ICC 500.If we were reviewing a house, the attached garage would be considered an S-2 (for valuation purposes only) in most cases because it would exceed the accessory definition allowing it be defined as an accessory or U occupancy. The garage and house would be reviewed under the IRC, and the storm shelter, when provided, under the ICC 500. A storm-shelter in an R-3 is typically going to meet the 10% sf rule, and would be classified as accessory.

Are there other or better ways to do this? Most likely, but this is what our administration approved through council. It is what it is I guess.
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That is exactly my point, even if it is classified as accessory for h&A, it needs to comply with the exiting etc as the use defined by it's occupancy load. It is only Accessory for H&A, Only.
 
Flat fee for storm shelters??? When added to an existing building property

Is this the first one ever added in th ahj???
 
Yankee, yes, it will definitely be required to meet the exiting requirements of Chapter 10 for the type of assembly use indicated.
 
43 units

The shelter will hold about 2.5 residents per apartment. Is that a good average for the number of residents for this complex or should the shelter be larger? It would be a same to put all that money into a shelterthat maybe undersized for the intended use by all the residents
 
mtlogcabin said:
43 unitsThe shelter will hold about 2.5 residents per apartment. Is that a good average for the number of residents for this complex or should the shelter be larger? It would be a same to put all that money into a shelterthat maybe undersized for the intended use by all the residents
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Guess you never saw those life raft movies or twighlight zone shows
 
2.5 = 3.0 occupants x 43 units = 129 occupants x 5.0 sq. ft./per

person = 645 sq. ft. Net Square Feet.

.
 
Papio Bldg Dept said:
I have a 540 SF, Type V-B, Storm Shelter attached to detached private residential garage building (10 garages @ 2,700SF).The RDP is defining the storm shelter as a group U occupancy. Is this consistent with your experiences, or should it be some other occupancy group (e.g., A-3/B/etc.)?
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What is the other facilities on this site?

Is it a SFR is it Multi Family? Is it Live/Work? Any reason you would expect there to be more than x people? Are they storing provisions for 6 months of food/water? What weather events are in your area. Hurricanes, Tornados, Avalanche?

Has anyone seen "ICC 500: 2008 Standard for the Design and Construction of Storm Shelters" and does that provide any guidance on this issue.

IMO, if this is truly a single purpose space for a SFR with say no more than a Duggar sized family. I wouldn't see a need for other facilitation (unless we are talking a Hurricane situation). Tornado, you are not going to be in there that long.
 
"It is a 43 unit (R-2) apartment building with a detached 10 stall parking garage (S-2) & 540 SF storm shelter (A-3). It is reviewed under the IBC. When a storm shelter is provided (we have no ordinances, zoning or building requirement), we will review under the ICC 500."
 
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