1hr rated electrical room door rating

[ennisdavis]

So I have an electrical room, no transformer, 1hr rating, and the door does not go into an exit corridor, Is the door rating 45 or 60 minutes?

 

[cda]

What kind of business??

Where is the room
Inner room off another

In a storeroom or something

 

[ennisdavis]

its in a school, off of a hallway BUT not an exit hall so its off of a roof.

 

[cda]

Ok should have asked

Existing, new or proposed building

IBC or NFPA 101 in play?

 

[Builder Bob]

IBC I am sure......

 

[e hilton]

If the room is 1 hr rated, wouldnt the door need to be the same?

 

[Builder Bob]

Not necessarily .....What is the exact code reference for requiring the electrical room to be rated for one hour? Exception to NFPA 13 = 2 hour, Smoke Control room = 1 hour, etc.

IS this an elevator equipment room? Then the 1 hour fire rated wall(s) is a fire barrier (and/or ceiling) with a 60 min. door (opening protective) required.

 

[tmurray]

Our code permits the rating of a door to be lower than the wall it is located in. This is based on the assumption that there is unlikely to be a fire load directly adjacent to a door. In most cases, a 1 hour wall only requires a 45 minute door here in Canada.

 

[SCBO1]

Not sure I have enough info?

2012 IBC Table 716.5, Exterior walls with a 1-HR rating, MINIMUM fire door assembly 3/4-HR = 45-minutes.
*A door closer and panic hardware may be required depending on the electrical panel amperage.

If it's determined a corridor, see footnote "b", for testing information

Kinda looks the same as Canada?

 

[cda]

Need to know what type of occupancy and where the room is actually located

And is this existing, new, proposed

 

[Builder Bob]

2015 IBC opening protectives - FIre barriers for a shaft with 1 hour fire resistant rating , 60 min opening protection required . If equipment room for elevator has to be rated the same as the shaft less than 4 stories (i.e. one hour fire barrier), then opening protectives would have to follow suite for a one hour fire barrier shaft.

(IBC section 713.4 - FIre resistance rating for shafts, 3005.4 for elevator machine room requirements, T. 716.5 Opening FIre Protection Assemblies - FIre Barrier having a required fire rating of 1 hour: Shafts min. rating for door = 1 hour)

 

[BayPointArchitect]

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