Engineering Center

I have a 14x8 rectangular duct no damper penetrating a 1hr rated hallway. The room that the duct is coming from has a ceiling below the duct, so in other word the duct is above a 1hr rated ceiling and that ceilings drywall is not installed yet. Can the hallway side only be fire stopped or do both sides need to be fire stopped....

I have an existing CMU 2 hour rated Fire Barrier that has an 8 metal building purlin penetrating it. What is the best way to provide rated penetration protection

I set some threaded anchors in a concrete slab and due to some squeeze out, the epoxy left dried residue on finished concrete surface. I need to clean this up by any means possible.

What we encounter more often than not are embeds that are either at the edge of slab ( i.e. the stud is at 45 degree) or around the slab with bolts on either side of the corner). Theres a need for these conditions to be added to profis.

I am looking for a fire stop detail for MC cable through a 1, 2, or 3 hour rated wall. Please note, the MC cable used notes Listed for use with UL 1479 - 1, 2, and 3 Hour Through-Penetration Firestop Systems. Does system no. W-L-3385 work for all MC cable penetrations? Or is a different system required for cables with a UL 14...

My company recently got Hilti profis the premium version understanding that we can do a customize bolt lay out for masonry, but I cannot find the feature. Please advise.

i have a customer using Hilti Has-TZ M20 but i dont see that as an option in profis software. can you help me? it shows as profis available on page fore the Hilti Has -TZ

I am looking for a Firestopping UL that would work with BVUX H515. Would appreciate any guidance with that.

When in Ram SS I hit the Hilti button to export the info needed for baseplate design. However, the info never gets to Hilti because an error occurs. See attachment.

I'm designing a steel beam to CMU wall connection and using Hilti anchors. The design requires more than 6 anchors, but I'm not able to add more anchors and am limited to the preset layouts. I know that for concrete designs, I have the option to create a custom layout for anchors, so I wanted to check if there's a way to do so...