Horizontal exit help

[RLGA]

“””The third required exit is the horizontal exit.””

Ah NO!!!

Actually, yes it is. A horizontal exit is an exit.

 

[cda]

I am thinking revaluate the occupant load, provide us a layout out with showing occupant load per room.



all you have to do is knock out 19 people, looks like

 

[cda]

Actually, yes it is. A horizontal exit is an exit.

I agree but in this scenario

Not a third exit

To me there are only two exits

The stairs

 

[RLGA]

I agree but in this scenario

Not a third exit

To me there are only two exits

The stairs

That goes to interpretation as I mentioned previously. All the technical aspects of a horizontal exit are incorporated except for some minor refuge area calculation errors and that nebulous "divide completely" phrase in Section 1025.2.

 

[cda]

Well


""A horizontal exit may be an element of a means of egress when in compliance with the requirements of Section 1025.1"""

It is not an exit, it is basically a way to an exit, because you still need an exit path on the other side to discharge.

 

[cda]

I am thinking in your example, the two hour wall divides the building

So you have an assigned occupant load on each side.

Plus yes it does give you the two required exits.


http://specsandcodes.com/articles/code_corner/The Code Corner No. 24 - Horizontal Exits.pdf



I fell the two hour wall is normally there to divide the building more for other purposes, and not directly to negate extra exits


Boy, I keep trying to get into your next book.

 

[RLGA]

Well


""A horizontal exit may be an element of a means of egress when in compliance with the requirements of Section 1025.1"""

It is not an exit, it is basically a way to an exit, because you still need an exit path on the other side to discharge.

Read the definition in Chapter 2: "An exit component consisting of fire-resistance-rated construction and opening protectives intended to compartmentalize portions of a building thereby creating refuge areas that afford safety from the fire and smoke from the area of fire origin."

 

[cda]

Ok I read your book , and agree with how it is worded in there.

and says once through the horizontal exit they must have an exit path that leads to an exit discharge.


I think we are saying the same thing, just in different ways.

 

[cda]

http://www.martyhuie.com/horizontal-exit-22-0/

 

[RLGA]

http://www.martyhuie.com/horizontal-exit-22-0/

Interesting vide. I disagree with his first element in regard to the termination of a horizontal exit at an exterior wall. What he shows is required of a fire wall, which can be considered a horizontal exit. However, when constructed as a fire barrier, the termination of a horizontal exit need only comply with the requirements for fire barriers at exterior walls.

 

[cda]

https://www.jensenhughes.com/blog/egress-horizontal-exits/

 

[Builder Bob]

interesting concept.... HVAC may be problematic ...

 

[cda]

interesting concept.... HVAC may be problematic ...

Yep

 

[OSH]

All,
Does an emergency voice/ alarm system (EVACS) IBC 907.5.2.2 require at the refuge area of Horizontal exit?
Also, per section 905.4 item 2 exception – We don’t need to add additional standpipes on each compartment, if the exit opening at the horizontal exit location is less than 100 ft. from the existing building standpipes, correct?

Thanks!

 

[cda]

I want to say No

But you might restate this ""Does an emergency voice/ alarm system (EVACS) IBC 907.5.2.2 require at the refuge area of Horizontal exit?""

If a voice evac system is required, that is thorough out the entire building, plus those specific areas in the IFC, which in my mind would end up through out the building.



and

Correct, it is actually 130 feet