IBC2009, R-2, 6 story, sprinklered, doesn't need elevator lobby, but smoke curtain?

[tuzi]

I've been there before but just can't find the clause saying smoke curtain is required at the elevator door.

I looked chapter 7 and chapter 30 but didn't find the clause. What I missed?


Thank you in advance!

 

[cda]

Not near the books, but have not seen a smoke curtain in a long time.

May be because past the 09 code use?

 

[tuzi]

I saw this post five years ago.
http://www.thebuildingcodeforum.com/forum/threads/smoke-and-draft-control-ibc-2009.8927/#post-107458

The clause 715.4.3.1 Smoke and draft control mentioned UL 1784 testing. and elevator door is not meeting this test?

But I also find this:

https://www2.iccsafe.org/cs/committeeArea/pdf_file/BU_09_16_11.pdf

I am confused.

 

[cda]

Check these maybe



code references
• 2003 IBC Section 707.14.1
• 2006 IBC Section 707.14.1
• 2009 IBC Section 708.14.1
• 2012 IBC Section 713.14.1
• 2015 IBC Section 3006.1

https://www.interior-tech.com/wp-co...oke_guard_sheet_rev12_interior_technology.pdf

 

[tuzi]

I think it's like although an elevator lobby is not required, the elevator door is opening to the corridor, soa smoke&draft control required. But still, it's back to fi the elevator door is meeting the UL 1784

 

[mtlogcabin]

tuzi
You are correct and the code section is 2012 IBC 713.14.1 Exception 3
3. Enclosed elevator lobbies are not required where additional doors are provided at the hoistway opening in accordance with Section 3002.6. Such doors shall comply with the smoke and draft control door assembly requirements in Section 716.5.3.1 when tested in accordance with UL 1784 without an artificial bottom seal.

 

[tuzi]

Thank you all! I think I am clear now.

 

[tuzi]

I got more information regarding this topic. Some cities in Colorado take clause 1018.6 corridor continuity to require a smoke curtain at elevator door even when an elevator lobby is not required. Some cities, on the other hand, do not require that. But in 2018 IBC, it states clearly an elevator door opening to the corridor will need to have smoke control.

 

[cda]

I got more information regarding this topic. Some cities in Colorado take clause 1018.6 corridor continuity to require a smoke curtain at elevator door even when an elevator lobby is not required. Some cities, on the other hand, do not require that. But in 2018 IBC, it states clearly an elevator door opening to the corridor will need to have smoke control.

This section??



3006.3Hoistway opening protection.
Where Section 3006.2 requires protection of the elevator hoistway door opening, the protection shall be provided by one of the following:

1. 1.An enclosed elevator lobby shall be provided at each floor to separate the elevator hoistway shaft enclosuredoors from each floor by fire partitions in accordance with Section 708. In addition, doors protecting openings in the elevator lobby enclosure walls shall comply with Section 716.2.2.1as required for corridor walls. Penetrations of the enclosed elevator lobby by ducts and air transfer openings shall be protected as required for corridors in accordance with Section 717.5.4.1.
   
   
2. 2.An enclosed elevator lobby shall be provided at each floor to separate the elevator hoistway shaft enclosuredoors from each floor by smoke partitions in accordance with Section 710 where the building is equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2. In addition, doors protecting openings in the smoke partitions shall comply with Sections 710.5.2.2, 710.5.2.3 and 716.2.6.1. Penetrations of the enclosed elevator lobby by ducts and air transfer openings shall be protected as required for corridors in accordance with Section 717.5.4.1.
   
   
3. 3.Additional doors shall be provided at each elevator hoistway door opening in accordance with Section 3002.6. Such door shall comply with the smoke and draft control door assembly requirements in Section 716.2.2.1.1 when tested in accordance with UL 1784 without an artificial bottom seal.
   
   
4. 4.The elevator hoistway shall be pressurized in accordance with Section 909.21.
   

 

[tuzi]

Yes.