Engineering Center

I'm installing an elevator call button in an existing 2-hour elevator shaft wall and want to maintain the 2-hour fire rating. Wondering if I can use the putty pad to maintain the fire rating. If so, is there an approved UL-listed system for the CP 617 Firestop Putty Pad ?

I'm installing an elevator call button in an existing 2-hour elevator shaft wall and want to maintain the 2-hour fire rating. Wondering if there's an approved UL system for elevator call buttons.

Good afternoon. I am looking for reccomendations. We have a scoreboard to hang up on a CMU block wall. I am looking for two seperate suggestions, one for a hollow CMU and one for solid block. The scoreboard is about 500 lbs. 8'x8' and has 3/8 diameter threats with 4 top and 4 bottom holes. Please let me know what you would rec...

Hi, I received and error while opening Hilti Profis. It is now 2 days that I don't have access. Please help me through this. Thanks

I have a job where we are required to infill some existing openings in old stacked stone foundation walls (1940's). The project is located in Baltimore Maryland. I would like to epoxy reinforcement into this stacked stone for these new infills. Have you seen any of the HY adhesives successfully used in this old stone? Is there...

I am teaching a structural design class and I was hopping to expose them to the HILTI anchors as those I used in Industry 20+ years ago, but somehow I can not access it. Please let me know

Can you provide the link to the past webinar on Designing Shear Lugs per ACI 318-19 (ANC211)

we'd like to use the FS-ONE MAX sealant up against an existing steel beam that will have the Fire Finish 120+ CFP-SB WB on it... are these two product compatible? Thank you!

I get the attached error message when trying to open Profis on Chrome and sometimes even in Microsoft Edge

I have been asked to price an expansion joint and cover plate assembly at a project in 2 locations, each roughly 10 LF. The joint is at the ceiling. I am a firestopping contractor and the party who reached out has asked for pricing and if I could have my company install something like this. After looking at the specs and attac...