My company is hiring a contractor to install our central station headend equipment (servers and software).
I would like to include the testing requirements in the statement of work. I looked through NFPA 72-19 Chapters 14 and 26, as well as other chapters and codes. I do not see the requirements for central station headend testing. I think the subscribers will need to ping the central station with the date, emergency code, building, etc. Does code require a minimum amount of information the subscribers must send to the Central Station? If so, could you tell me the required subscriber information that needs to be sent to the central station or provide the location in code for the information to be sent to the central station from the subscribers? I don't see any requirements or criteria for testing, and I want to be sure we're conducting this appropriately. Thanks in advance. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
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My company just completed design/build construction of a canopy structure over a courtyard between two restaurant buildings located on the east & west sides.
We assigned an Occupancy Classification of A-5. The structure is all steel, other than the roof construction is comprised of the following layers: 22 gauge steel B deck, 7/16 inch OSB, 24 gauge metal standing seam. The standing seam contractor asked for a solid substrate, instead of metal to metal (Standing Seam attached to the B Deck. We agreed to add the OSB. We examined the 2018 IBC and assessed that we could use the OSB. Our assessment concluded that the entire structure could be built with wood framing without sprinklers (A-5, no enclosures, height 37ft, 6,090 sf, Type V(A) Construction). The AHJ shut us down and told us we needed to remove the OSB (combustible material). What we didn't know was that the City and developer executed a Covenant Agreement that stipulated the Canopy was an A-3 Assembly occupancy. This was arranged because the developer didn't want the exterior restaurant walls to be fire-rated because of the ease of movement from the restaurant to the courtyard. As a result, the OSB needs to be changed to fire-retardant-treated plywood. Was the original classification of A-5 occupancy (which could have been wood) canopy assembly an acceptable approach? Picture below, showing the galvanized steel deck. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe I am designing a wet pipe fire sprinkler system in a one story Group B occupancy (16-ft high). The building is about 90,000 sqft in area. The building will be fully sprinklered with two zone control valve assemblies.
The fire department is asking to add fire hose valve cabinets as the interior remote areas of the building are more than 130 feet from an exterior door, only citing that its required by IBC 2021. Is this correct? I can't find this requirement. Any help is appreciated. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe If a duct detector is installed, and the mechanical unit has a capacity of less than 2,000 CFM, it is required by code for the duct detector to be connected to the fire alarm panel?
Alternatively, removing the detectors can be considered in this situation. Looking for relevant code and standard basis. We're under the 2021 IFC, 2021 IBC, and 2019 NFPA 72. Thank you! Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe My jurisdiction (I am the AHJ) has had several buildings built with private hydrants supplying the sprinkler system where the main comes into the building, through the RPZ, feeds the sprinkler system/standpipes, and leaves the building and feeds the hydrant(s). This has always seemed counterintuitive to me, at best. I feel we are "robbing Peter to pay Paul" and have wondered if this arrangement will adequately supply the sprinkler system when we (FD) pull water from the hydrant and pump it back into the FDC.
Per our state law, private hydrants have to be "protected" with a backflow. Is this configuration code compliant, and if not, what is a solution? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe What specific criteria or code references determine whether a standpipe system is classified as 'separated' rather than 'combined'?
I've seen AHJs state that even though the sprinkler system and the standpipe have separate vertical riser assemblies (control valve, check valve, and supervision), they are fed from the same underground supply (one underground service main) and will still be considered combined. We are working on a project where the AHJ has deemed the building 'partially sprinklered,' requiring the standpipe to be upgraded from 4" to 6" (which would necessitate a pump) but only if it is a combined system. We are looking for clarification or language that supports the distinction between a combined and a separated standpipe system to explore options that may avoid the need for a pump. Additionally, does anyone have thoughts on how we might be able to keep the standpipe at 4" or explore alternative approaches to avoid the pump requirement? Thanks in advance. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe Subject: Two story convenience opening separation from corridors.
NFPA 101 (2021 edition) Section 8.6.9.1 permits convenience openings for two adjacent stories. But, these convenience openings shall be separated from corridors (requirement #3) and further states that separation should be by a smoke partition (requirement #5). How do you define a corridor versus an open floor area or lobby per NFPA 101, since no definitions are given within the code? Jurisdiction is required to follow NFPA 1 and NFPA 101. For example, a building has a large assembly space on the second floor. All doors from the assembly space lead to a ~40'-0" wide circulation space (+200'-0" long in the other direction). To reach the building exit stair, occupants from the assembly room must traverse the 40'-0" wide circulation space. Within this circulation space is a ~20'-0" x 40'-0" vertical opening that connects the 1st and 2nd floor. Should this circulation space be considered a corridor, and should the vertical opening be prohibited from being classified as a convenience opening without a smoke partition separating from the corridor? Or is the 2nd floor space to be considered an open floor area, with exits immediately accessible in different directions (NFPA 101 7.5.1.1.1) and not consider it a corridor? The width of the circulation space seems too wide to be defined as a corridor but NFPA only provides minimum width requirements for corridors, and no maximum width for a space to be considered a corridor as far as I can determine. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe Is there anything in the code that specifically talks about EV (Electric Vehicle) charging stations?
Anything that might say "If you are adding EV Stations in a garage the sprinkler system must be checked, upgraded or analyzed?" Thanks in advance. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe I'm working on an interesting scenario in which the client would like one main line into the building for fire and to tee off that line inside the building, with one line going to a giant indoor tank that holds 350,000 gallons.
It would be filled just one time per year. Assume 1,000 gpm for 6 hours that one time per year. First - do you all see this as a possibility right off the bat? We were talking about putting motorized valves wired back to FACP that shut off if the fire protection activates flow as a potential solution if it could work. Initially I asked about a water tank for that until I learned it was 350,000 gallons. Second - is it even possible to calculate out in that scenario? One thing I love about FPE is the unique, always challenging scenarios that come up regularly. I'm looking forward to figuring out how we're going to handle this facility. Thanks in advance for any input. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe We are a large metropolitan area with multiple universities that have been operating for decades with high levels of hazardous materials. They want to have separated control areas, but their building construction does not meet current requirements.
On one side we can only enforce the code that these were built to, which was BOCA or even no building code at the time, but on the other hand, there is a reason why control areas came about in the first place. As they cannot easily upgrade the structure to meet 2-hr requirements, I am planning on just using equivalent level of safety through sprinkler protection and other factors, but was wondering if anyone had experience doing enforcement like this? Is NFPA 45 enforceable here? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe My area's adopted building code references NFPA 13, the 2016 Edition.
Should I even consider looking into the later versions of NFPA 13 (2019-present)? If there are major differences, how do we reconcile following only 2016 since the building code references it even though it may be outdated now? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe Are townhouse complexes (3 or more side by side and separated by fire barrier) considered R-2 or R-3?
Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe For a sprinkler pipe that is low enough above the finished floor that it could be walked into by a person of standard height, can it be wrapped in foam or soft material by code to prevent knocking one's head on it?
Alternatively, is it allowed to wrap this pipe in yellow tape or adhesive to increase its visibility to prevent running into it? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe I work for a local fire department that does plan reviews for fire protection systems. We are reviewing a project that requires 40,000 gallons of stored water. They are proposing using multiple fire water tanks and eight 5,000-gallon tanks.
While NFPA does not restrict the use of multiple tanks, I would like to see fewer tanks than eight. I am more inclined to allow two separate tanks at the most. However, I wanted to see what others thought and if there was a standard understanding or practice to number or size of tanks to the total needed water demand. Thanks for any help. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe I hear so many times that if the fire alarm panel dies, the entire building's fire alarm system must be brought up to current code.
Can anyone educate the world on when building fire alarm systems must be completely upgraded to the current code? The International Existing Building Code (IEBC) Section 6 lists all possible combinations. Level 1, level 2, and Level 3. None of them require a full upgrade to the current code when the main panel hits its end of life. If a system was to need to replace all items in its location with a different system, reusing locations and wire, it would not meet a Level 3 requirement alone and would simply be using new equipment or fixtures that serve the same purpose. Can someone give me an actual code path that requires a full upgrade in this scenario? Thanks in advance. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe A 40,000 sqft, F-2 Occupancy, single-story metalworking facility of IBC Type II-B construction is not required to be provided with automatic sprinkler protection due to the lack of sufficient combustible loading in the IBC.
However, the same 40,000 sqft single-story facility of IBC Type II-B construction of a Mercantile (M) occupancy must be provided with automatic sprinkler protection due to sufficient combustible loading to warrant sprinkler protection. Unfortunately, IFC Appendix B does not distinguish between these different occupancies with regard to Fire Flow except that a 75% reduction is offered to the M occupancy for sprinkler protection. Since no sprinkler protection is required for the F-2 occupancy, can't it be treated the same as occupancies requiring sprinkler protection and provided with sprinkler protection - allowing for the 75% reduction? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe I have an R-2 convent with existing 120v smokes in the sleeping areas and they are installing a new FACP including low frequency notification in the sleeping areas.
I’ve read the commentary for IBC 907.5.2.3.3. Would you say based on this section that they would need to either replace the existing 120’s and install system smoke detectors, or change the existing 120’s to a combo audio/visual model? I'm trying to determine if the intent behind this is that the existing 120v smoke alarms now would also be required to activate visible signaling as well. Appreciate your input! Moderator: Link Directly to IBC 2021 907.5.2.3.3 Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe Why is there a drastic change for limiting an NFPA 13R sprinkler system from a four-story, maximum 60 feet height above grade plane in IBC 2018 to the maximum of the top floor being only 30 feet above fire department access in IBC 2021?
Here, we have many townhomes (R-3 group) that could easily comply with the 2018 edition of the IBC, but they will exceed the top floor 30-foot limit of the 2021 edition of IBC. Also, the 2024 IBC tries to fix the drastic change by providing an exception for Group R-2 buildings by raising the top floor height limit from 30 ft to 45 ft. That's great and all, but townhouses are still considered R-3 buildings and do not qualify for the exception. How would you proceed for a townhome with a top floor over 30 feet above fire department access? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe NFPA 72 (2016) Section 17.7.5.3 says a duct smoke detector is required in the supply air duct; on the other hand, the IMC (2020) Section 606.2.1 says a duct smoke detector is required in the return air duct.
Which should I follow? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe What is the design criteria for exterior openings protected by a water curtain in IBC 2021?
Section 705.8.2 (protected openings in exterior walls) says that opening protection is not required when the building is sprinklered in accordance with NFPA 13 and when the exterior openings are protected by a water curtain approved for that use. "Water curtain" is not defined in the IBC or NFPA 13. NFPA 13 (2019 edition) gives design approach requirements for water curtains in Section 19.4.3, but none apply to protecting openings in exterior walls. What is the intention of the IBC here? Window sprinklers? Exposure protection sprinklers? Is there a different NFPA standard that covers the design of this water curtain? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe Section 503.1.2 of the IBC seems pretty clear that the intention that two buildings on the same lot can be considered 1 building if the comply with the height and aggregate areas comply with the height/area limitations.
However, does that also apply to Chapter 9 requirements? For example, if Building A requires a sprinkler system based on its size/occupancy, does Building B need one even if its size and occupancy wouldn't require it? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe Is fire-rated construction ever enough to not warrant sprinkler protection?
Is there a NFPA 13 section that would validate this one way or another? Thanks in advance. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe I am designing a community tornado storm shelter and per ICC 500, Section 309.1, any penetration of the shelter envelope by a liquid line is to be provided with an automatic shutoff.
How is this being achieved with sprinkler pipe penetration? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe As many/most of us know, there's an internationally standardized pictogram (symbol) for exit signs that's common in many countries worldwide. However, it's not yet common in the US, likely due to what appears to be a misconception that the IBC/IFC only allows "EXIT" lettering.
IBC/IFC Section 1013.5 requires internally illuminated exit signs to be listed to UL 924. (There's a different section on externally-illuminated exit signs, 1013.6.1, that specifies "EXIT" lettering, however, the vast majority of exit signs are internally-illuminated and therefore not subject to anything under 1013.6 due to that section's scope clause.) UL 924 was revised a while back to allow the internationally standardized pictogram, including in lieu of "EXIT" lettering. (see section 42 of UL 924) Therefore, my impression is that a UL-listed internally-illuminated exit sign that uses the internationally-standardized pictogram complies with the IBC/IFC. (There are such products currently on the market.) Are UL-listed internally-illuminated exit signs using the pictogram in compliance with IBC/IFC? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe Does anyone know the historical context of why a 90-minute door is permitted on a 2-hour barrier?
Why the 30-minute difference? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe |
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