I have a type IA high rise where some beams cross through the protected stairways.
Since there are no combustibles in the stairways, do the beams still need to be fire rated?
-
Welcome to The Building Code Forum
Your premier resource for building code knowledge.
This forum remains free to the public thanks to the generous support of our Sawhorse Members and Corporate Sponsors. Their contributions help keep this community thriving and accessible.
Want enhanced access to expert discussions and exclusive features? Learn more about the benefits here.
Ready to upgrade? Log in and upgrade now.
Featured content
This is a very basic question I haven't really thought about - when is a UL assembly actually needed? I always assumed only when there was a need for some fire rated assembly?
And in all other cases, i.e. a non-rated Type VB construction, we didn't need a UL assembly and could create wall types for our needs?
I have A 2 hour firewall that they want the steel fireproofed with intumescent at the roof, can I reduce this to 1 hour if the steel is only supporting the roof ? Table 601 says I can
Thanks
Who and how is the capability of a resident to respond to an emergency determined? In an assisted living facility with memory care it would B an I-1 classification, but 2 conditions are identified. Cond. #1 is no assistance, cond. #2 is limited assistance. I assume no assistance could likely not include memory care units, and limited is anything short of needing to be wheeled out by someone else.
I have a fire protection engineer that wants to build a fire research lab in the warehouse of their tenant space, and I have no idea what its use/occupancy would be. The AHJ uses both IBC and NFPA 101. My guesses are Business (IBC) and Non institutional labs looks like it falls under Industrial in NFPA 101, but I'm not sure what hazard label to give it. High Hazard? Any advice is much appreciated.
Does table 722.6.2(5) Time assigned for additional protection apply to floor-ceiling assemblies, or only to wall assemblies?
The language of the 722.6.2(5) chart states "Add to the fire rating of wood stud walls". However chapter 722.6.2.5 Additional Protection states that, "Table 722.6.2(5) indicates the time increments to be added to the fire resistance where glass fiber, rockwool, slag mineral wool or cellulose insulation is incorporated in the assembly."
Regarding vertical continuity of a fire barrier at the roof (IBC 705.5), when you have roof truss/joists perpendicular to a fire barrier, in order to maintain continuity is it standard practice to design the fire barrier to bear the roof joist? Otherwise you have to frame the wall below the roof joist, the run the drywall above and between the joist up to the roof sheathing.
All,
Thank you in advance and hoping you can help.
R-2 Apartment Building under IBC - with load bearing 2x6 exterior wall, exterior sheathing, rigid insulation and vinyl siding. Exempt from NFPA 285 as type 5 construction.
Structural engineer would like exterior wall to be 24" o.c. since floor joists and roof trusses are at 24" o.c. as well but I cannot find any tested assemblies that would allow 24" oc!! Everything I see calls for 16" o.c. examples U356 and V302....
Thank you!!!!
This is a general question, so I'm just providing a fictitious scenario. Original building is a 21,000 sf single story, sprinklered warehouse building (S-1 occupancy) (type II construction) with a 7000 sf enclosed mezzanine (business occupancy) which has two enclosed exit access stairs that lead directly outside (stair shafts not rated). What happens when somewhere along the line, the owner decides they want to subdivide that warehouse into two spaces (10,500 sf ea), by installing a full...
We're reviewing an application to construct a new 1,100 s.f. building that will be a drive-thru coffee shop. Only employees inside, no front door, no public access to the building.
Site plans all show a detached 4' x 4' "shelter" for a drive-thru attendant. There are NO details and NO information about this structure in the structural or architectural drawings, but the electrical drawings show a 120-volt circuit feeding this structure from the lighting panel in the main building.
Since the...
Regarding the previous posting, long story short, I received the comment below.
"Response does not appear to relate to comment. Please see clouded area on sheet LS001 at base of rear stairs. The 2nd floor stairs appear to encroach on the egress path where the 2nd floor converges with the 1st floor.
After speaking with the reviewer he indicated that I need to show the total number of occupants who will pass through the clouded area (48" width). This includes tenants 1-A (total 230...
I am looking to see if there are any legal EBC Commentary viewers online.
Thank you,
Hello All,
I could have sworn there was a portion of the code that mandated a wall-hung sink must be 4" from edge of sink to edge of adjacent wall. I checked ADA, ANSI 117.1, IPC, IRC, and IBC (2018 and 2021 versions). Does anyone else remember this?
Thanks!
Probably not going to find an answer but here it is from 2012 with commentary:
2012 footnote b. to table 601:
Except in Group F-1, H, M and S-1 occupancies, fire protection of structural members shall not be required, including protection of roof framing and decking where every part of the roof construction is 20 feet or more above any floor immediately below. Fire-retardant-treated wood members shall be allowed to be used for such unprotected members.
2012 commentary
Note b applies to...
I am looking into a change of occupancy for an existing 4000sf 2 story log building. Currently is B occupancy, and owner is looking to convert to a Hostel, type R-1. Location is in Oregon and applicable code is OSSC. It is clear that a sprinkler system will need to be installed and that sleeping rooms will need to need to separated from other sleeping rooms and occupancies by 30min fire partitions and horizontal assemblies. The walls are easy enough... the floors are harder to understand...
2018 I codes
A 1,932 sq ft existing tenant space in a shopping center wants to put 9 in "skill game" machines in along with a pool table, and corn hole. Also an 8' long bar. Did not say if serving drinks or BYOB or nothing. Skill game machines are legal gambling machines that you can win cash with and are licensed by the state.
A2 occupancies includes Casinos (gaming areas) but A3 includes Amusement arcades. I am not sure which occupancy this should fall under.
Also, I don't know what the...
I can't figure out how to classify a congregate residence per California Building Code 310.
It is a single dwelling unit (mansion-sized, really) with 20 bedrooms for 20+ occupants. The residents have been either homeless or at-risk for homelessness, and the average resident stay is 6 months while they get their life together, so it doesn't meet the CBC 202 definition "transient" which is primarily 30 days or less. The residents pay no rent; this is a not-for-profit ministry, so it's not a...
This is a question for multi-tenant mixed use buildings. The tenancy is usually, Business, Mercantile, Factory 1 or Storage 1 (per IBC) and Business, Mercantile, Storage Low/Ordinary and Industrial General Purpose (per NFPA 101). Each individual tenant is separated by a 2hr wall as standard practice. However, within each tenant space, there is usually Business and either Storage 1 (Storage Low/Ordinary or Factory (Industrial). I would say 85% of our tenants are Business and Storage 1...
We have a situation in a IA + VB R-2 building (VB on 3HR podium per IBC 2018 510.2) where a steel column is supporting loads from a beam that is only carrying loads from the type VB construction above. Does the 3HR steel structure protection apply to this column and beam? If so the whole height or only up to the 3HR separation? See a crude sketch below.
Working on proposals for changes to section 410 Stages and one colleague wants to limit it to A1 occupancies. Certainly A3 with "places of religious worship" have stages, but what about A3 community hall? Does presence of a stage make it A? Or an A3 gym or A2 cafeteria with a stage? What would you expect them to be labeled and designed for?
IS there A height limit to this design, Rated ceiling with 2 1/2" Lightweight concrete on top of 1.5" 22 Gauge Galvanized deck (steel barjoist on 4' centers. Plans call for 6 floor and A roof, total height 68' with some eleveator framing extending 12 above roof out of light gauge steel.
Milam
And Thanks
Morning all,
I’m working on a code footprint for a wood stake factory (think wood building layout stakes). Currently calling the 7,500 s.f. building F-1/S-1 non separated non sprinklered type VB (IBC 2018). Calling it VB because of some of the wood infill walls -even though it is a PEMB (pre engineered metal building Type II-B)
Question 1 on sprinks 903.2.4.1. “Woodworking operations” says that you have to sprink any area over 2500s.f that generates “finely divided combustible waste”. Is...
This is the definition in Florida. Does it match up with the definition in your state?
CHANGE OF OCCUPANCY. Either of the following shall be considered as a change of occupancy where this code requires a greater degree of safety, accessibility, structural strength, fire protection, means of egress, ventilation or sanitation than is existing in the current building or structure:
1.Any change in the occupancy classification of a building or structure.
2.Any change in the purpose of, or a...
Hi all!
I have looked for the answer here and in the IBC but I'm coming up empty.
I am laying out workstations in a large open room. One end of these cubes will form a 'path' to the exit access doorway. I have always assumed that it needs to be 44" and done it this way (although in this particular case, 36" will do -but I don't use it because it's too tight regardless of what the code says about min. OL)
Long story short, I was just told by a colleague that if the end panels are less than...
How do we classify mechanical rooms when they support an open air A-5 occupancy such as a splish splash park, or a padel court for purposes of specifying fire alarm, fire suppression, emergency lighting, signage etc?
Group U maybe? S-2?
Going with Group U practically exempts these areas from all requirements. Not even emergency lighting....
I have asked a a similar question in an older thread here but the subject was different and the question is not really visible, sorry for repeating...