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  1. radioatlas

    Storefront glass in egress stair

    Thanks, steveray. Is it considered an unprotected opening?
  2. radioatlas

    Storefront glass in egress stair

    Can an exit stair have storefront glass where it exits into a public right of way at grade level? IBC 2018 4 stories of Type V-A construction and R-2 occupancy (condos) above 1 levels of Type IA concrete This is one of two exit stairways that connect from the roof to all levels of the building...
  3. radioatlas

    IRC vs. IBC and Structural Requirements

    In general, would it be safe to say that a building engineered under the IRC would have reduced structural requirements (and is therefore slightly more economical under normal conditions) than the same building engineered to meet the IBC?
  4. radioatlas

    Rooftop Deck: A Story Under IRC?

    OK, so can we interpret the floor area at the top of a stair landing considered a mezzanine?
  5. radioatlas

    Rooftop Deck: A Story Under IRC?

    Thanks to both. Yes, the question is centered on the stair access having a 'roof.' Is there any chance this access stair situation can be classified as a mezzanine?
  6. radioatlas

    Rooftop Deck: A Story Under IRC?

    Is a rooftop deck considered a story by the IRC? Example, we have an enclosed stair that opens onto a roof deck with three floors of living below. If yes, then are we are kicked out of the IRC into the IBC. Jurisdiction is North Carolina. Thanks to all in advance!
  7. radioatlas

    Minimum Floor Slope for Drainage

    Thanks to all for replies. North Carolina Building Code (based on IBC 2018). Interior application for an airport hangar. Can't find any actual hard guidance in the code as to what the minimum slope is to achieve "prevent water or fuel from remaining on the floor." Would less than 1/8" be acceptable?
  8. radioatlas

    Minimum Floor Slope for Drainage

    Where I'm from, we've always used 1/4" per foot slope for floor slab drainage as is recommended by the ACI. Does the IBC, plumbing code, or any other model code dictate what the actual minimum floor slope is for drainage? Example: IBC 412.3.3 states: "Floors shall be graded and drained to...
  9. radioatlas

    Ledger Board Attachment for Residential Addition

    We're designing a second story addition to a house which will 'bridge' between the existing gable end wall of the house and garage. The floor system of the addition will attach as a ledger board and span the 6'-0" gap between the buildings. Where does the IRC prescribe this type of connection...
  10. radioatlas

    Finishing an existing basement built c.1899

    Daylight basement built c.1899 in a national historic district. Looking for a code reference that dictates finishing existing basement walls with respect to damp-proofing interior walls. Thanks!
  11. radioatlas

    Electrical Panel Room Flooring Material

    2015 IBC / Electrical Code .... are you aware of anything governing what type of flooring material specifically to electrical panel rooms? It's a 1 hour rated fire barrier Type V-B Business occupancy. Thanks!
  12. radioatlas

    Generator Distance From Wood Building

    Thanks @Rick18071 !
  13. radioatlas

    Generator Distance From Wood Building

    My electrical engineer is asking me if his generator layout meets building code (Washing State, IBC 2015) or NFPA in terms of the distance of the generator to our existing wood building. We are currently 5'-9" from the building exterior edge, however there is a 1'-0 overhang. Are you aware of...
  14. radioatlas

    How to Determine Door Ratings for Various Spaces?

    Thanks for your replies. As for questions from above... Business occupancy. Stand alone facility (outpatient). Yes to meet NFPA code but non-sprinklered. Reading through the links you sent now...
  15. radioatlas

    How to Determine Door Ratings for Various Spaces?

    Working on an ambulatory surgery suite (IBC 2015). The state reviewer has corrected several of my door fire ratings, and I want to cross check the work. I'm realizing I don't have a strong understanding of how to determine door ratings for different scenarios. Can someone help point me in the...
  16. radioatlas

    Type III-B

    Change of use from Mercantile to Business (bar & restaurant), under 1,000 square feet in a multi-tenant storefront-style building. Exterior concrete walls with big areas of storefront glass, unknown roof structure. I called the building V-B with existing 1 hour tenant separations, since the...
  17. radioatlas

    Go Through Janitor's Closet to Access Another Room?

    Thanks to everyone who replied!
  18. radioatlas

    Go Through Janitor's Closet to Access Another Room?

    The dirty room is for soiled processing/handling of medical/surgical instruments and equipment. Once decontaminated, these items are passed through a window into the clean/processing (sterilization room). The clean room has a direct connection to the operating room. Janitor room is 5'-0" x...
  19. radioatlas

    Go Through Janitor's Closet to Access Another Room?

    Scratching my head here... I'm working on a small office-surgery suite with extremely tight existing conditions. We're trying to squeeze every drop of square footage, and the client had the idea to go through a door inside a janitor's closet to access the dirty processing room. This would be the...
  20. radioatlas

    UL Detail Does Not Exist

    Thanks, @RLGA ... That's very helpful. Rookie over here has always been able to find UL details up until now.
  21. radioatlas

    UL Detail Does Not Exist

    Hi, not sure if I'm posting in the correct category... We need to show a 1HR fire partition between sleeping units in an existing historic motel building. The existing bearing wall assembly is a double-wythe 4" CMU cavity wall. UL has verified in writing that they don't have a tested assembly...
  22. radioatlas

    "Non-Accessible" Minimum Clear Floor Area?

    Thanks, everyone!
  23. radioatlas

    Construction Type I-V

    Thanks everyone for your insight, this is all very helpful!
  24. radioatlas

    "Non-Accessible" Minimum Clear Floor Area?

    In what code are minimum widths dictated for NON-accessible spaces? Example, we're working on a historic hotel renovation (with very tight spaces!) and are trying to figure out the minimum allowable distance between beds for our non-ADA compliant rooms?
  25. radioatlas

    Construction Type I-V

    Hi, rookie question here... I'm a young designer and have never fully grasped the "concept" of Construction Type insofar as the code is concerned. I understand that a building can be 'classified' as multiple different types, but where do you begin determining type for an existing building? Are...
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