Per the manufacturer's requirements for post-installed anchors, the 1/2" x5" drilled holes in concrete must be within 6 degrees of plumb. As a Special Inspector, I must verify a few hundred holes based on Chapter 17 of the IBC. Is there a device that I can quickly measure the accuracy of the...
I am performing observations of the metal decking before the insulation boards are installed, and the contractor performing the welds to the deck is burning a lot of holes through the deck, mostly the size of a dime except a few, maybe the size of a nickel. I typically don't see this many; it's...
Would the boxes for the surface-mounted receptacles in a 10-story open commercial garage need to be damp-proof? A hard rain may get some of the boxes at the perimeter wet, but a typical rainstorm would not reach them.
I have an open garage, and where the electrical boxes are located to provide power to the exit lights during rain, water is visible from the boxes. The International Building Code doesn't require a barrier to be provided on the top garage floor, so I would like to know if anything in the NEC...
I have been searching for the aggregate gravel size in relation to reinforcement clearance. I remember reading once that the reinforcement clearance could not be less than 1.5 the aggregate size. In other words, if the aggregate was 1", the clearance had to be a minimum of 1 1/2". I thought this...
Per ACI 318-19, concrete cover for a wall exposed to weather is 1 1/2". Would not a tilt wall be considered exposed to weather? The engineer shows 3/4" coverage over the reinforcement.
The electrical contractor installed a VFD exactly as shown on the drawings; however, the only access to it would be to climb over some pipe. It doesn't make sense that you would not have easier access to this variable frequency drive. Does code address access other than clearance to a panel? See...
I am often challenged by contractors when I ask for documentation of ground testing of their grounding system or in today's case, a ground rod. I show up for a final electrical inspection and find the ground rod has been installed however, I have no proof that 3' wasn't cut off (which has...
NFPA states sprinklers are not required in concealed spaces filled with noncombustible insulation. I have an 18" attic/concealed space above the top floor (flat roof), so can I say this is a concealed space? or is it the attic, which I may not be exempt?
Does anyone know where I could find the backup to require the contractor to isolate the unistrut support from the mechanical duct resting on it? I have read this somewhere in a code or manufacturer product data. I am in the USA under the 2021 ICC codes. Section 603.12 kinda supports it but I was...
I read in a code but do not remember where but when two or more black steel pipes are installed at the same location, the gas pipe is required to be identified with yellow stripping or painted yellow.
Does anyone know where this may have come from? I am in Texas, and I have looked in the 2021...
I have a 12-story open garage with retail stores beneath on the 1st floor. Waterproofing was shown to be on level 2 of the garage however, it got a valve engineered out. Is there anywhere in the code that would require the 2nd floor, which is the roof of the retail space, to be watertight? The...
I am inspecting a large garage that is 1/2 precast and 1/2 cast in place. Where the expansion occurs between the two garages I'm trying to locate in code the requirements for piping passing through this location. Would all pipes require some type of expansion or pipe of a certain size? Is this...
Is there a location on a Double Tee where you should not have a through penetration for a 3/4" bolt being installed to support piping? I am inspecting some 12" Chiller pipe being supported from each Double Tee in a garage. The contractor has drill holes for two supports approx. 4" down from the...
I have a 20 story residents hall that was energized by the power company on Tuesday and I found out today the switchgear is hot and the electrical contractor plans to make panels throughout hot and start-up mechanical equipment on Friday. I have not performed any inspections of the electrical...
I am unable to find any ground testing requirements in the NEC. Does the NEC require performance testing of the ground system? The EOR had a lot of grounding testing in the specifications however the contractor has stated all the testing was VE out and he says he doesn't plan to perform any...
I always read in the specifications where a hanger is required within 12" of a change of direction on horizontal piping regardless of the pipe size however I have never read this in any of the codes such IMC, IPC or even the MSS-SP-69. Where does this requirement come from?
Per the 2014 NEC 344.10 4 (B) Galvanized steel may be used in concrete where protected by corrosion. Is the galvanize not the protection for the steel? Are you still required to protect the elbow with an additional layer of protection such as tape?
I am performing QA on a PT elevated slab and looking at studs around the perimeter that have very little concrete coverage maybe 1/2". ACI use to state the coverage had to be the minimum of the largest rock size in the design mix which is 1" however I can not find that verbiage in ACI now, has...
I have a 18 story building being constructed on a 4'deep mat foundation. The contractor has started constructing reinforcement and placing concrete for the sheared walls on day 7. I received the 7 day breaks yesterday for the 6000 psi foundation and the breaks were all around 3200-3500 psi. Does...
