2010年1月20日 · design called for steel tube columns & braces to be protected with spray fireproofing ul x771. the horizontal assembly floor is ul j957 which could include spray …

2019年1月27日 · Hi there- I'm not sure I'm asking the question right, but I am looking at a commercial restaurant space that cannot have a Type I hood. Reading through permit appeals …

2019年4月17日 · My plans spec U340 which is a 6" wide 1 hour wall assembly that is framed using 2x6 and 2x4s and a single layer of 5/8" Type X drywall. Is anyone aware of a 6" wide …

2022年3月3日 · UL 875 is the standard, and it has a lot of requirements. I look for a UL mark, but if they didn't provide one when I asked for it then I assume it doesn't exist. I would also accept …

2009年10月20日 · Can you describe the method proposed for the through penetration? I have seen sections of ridged conduit with the ends sealed by intumescent material. The pipe was …

2022年6月6日 · I am using UL 341 assembly in our project. Normally what I see is that the drywall will be run continuously behind all non-rated wall connections. I am now working with a new …

2011年6月17日 · I'd like to expand on this subject and ask another question about UL fire rated assemblies. If you have a one hour wall constructed to a UL listing, say U465. Can you add …

2009年10月20日 · I've seen quite a few requests from AHJs lately, asking to see the UL 294 listings for all of the electrified hardware installed on the project. The listing is not required by …

2012年1月17日 · Do building inspectors ever actually check to see - or care - that UL fire rated assemblies that are referenced on drawings are constructed with the proprietary products that …

2016年7月13日 · Does anyone know of 1hr UL assmeblies for steel beams that are in a 1hr rated wood f-c assembly (L546 to be specific)? All SFRM, intumescent coating and even gyp …