Hotel Sleeping Unit & Corridor Separation

[MakeNoAssumptions]

Hi All,

I am trying to figure out if we can use 1/2hr fire partitions to separate hotel rooms from each other and corridors. My code review says it is fine but everyone I talk to says they always just do 1-hr.

Building is fully sprinklered IIB and here are the sections that lead me to a 1/2 hr rating:

• 2015 IBC:
  • Table 1020.1 allows 1/2hr corridors
  • Section 708.3 allows 1/2hr in sprinklered building
• 2015 NFPA: 28.3.6.1.3
  • 28.3.6.1.3 allows 1/2hr corridors
  • 28.3.7.2 allows 1/2 guest room separation

Thank you!

 

[cda]

Welcome

So just how were you going to make a Listed 1/2 hour wall?

What listing agency and number are you looking at?

 

[MakeNoAssumptions]

Welcome

So just how were you going to make a Listed 1/2 hour wall?

What listing agency and number are you looking at?

Haven't fully thought this one through yet. I was hoping there would be some relief on dampers and running plumbing in it for kitchen walls.

UL U407 provides an assembly for this.

 

[redeyedfly]

I don't know what benefits the 1/2 hour allowance provides. You still need to protect membrane penetrations, I doubt the 30 min difference would change fire caulk in the annular space for a typical plumbing penetration firestop. Ducts penetrating a corridor wall typically do not require dampers.
We draw corridors as 1hr even when they only need to be 1/2 hour because there is no benefit and it would only confuse people who are not accustomed to seeing 1/2 hr walls on plan.

 

[Paul Sweet]

It looks like this assembly requires proprietary 5/8" gypsum board, instead of generic type X. The screw (or nail) spacing looks a little farther apart than most 1 hour assemblies, but that might not save enough to offset the extra cost of proprietary gypsum board.

https://www.buildstrong.com/wp-content/uploads/2016/08/Viper25,%2020%20UL%20U407.PDF

 

[ADAguy]

Have you considered "sound" transmission?