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Cara S.

Registered User
Joined
Nov 25, 2021
Messages
5
Location
Canada
Hello,

I am working on an assignment where I need to verify some building codes according to the OBC (Ontario Building Codes) but there are a few that I cannot locate. If anyone could point me in the right direction I would greatly appreciate it.
I did find some of these but the language is a little confusing so I'm not totally sure….

(This is for a 2 storeys of a 4 storey office building).

1. Intervening Rooms
- Allowable Rooms:?
- Egress Shall Not Pass Through:?
- Minimum Width:?

2. Public Aisles
- Minimum Width:?
- Projection Min. : ?
- Standing Space: ?
- Door/Drawer Space:?

3. Min. Ceiling Height
- General Office Areas: ?
- Means of Egress: ?
- Bathrooms, Toilet Rooms, Kitchens, Storage Rooms, Laundry Rooms:?

Thank you in advance

Cara
 

tmurray

Registered User
Joined
Jun 10, 2011
Messages
2,185
Location
NB, Canada
1. What do you mean by an intervening room?

Generally, egress from one occupancy cannot travel through another occupancy. This might answer your question.

2. What do you mean by public aisles? Aisles that are located in a suite, or do you have an occupancy in a corridor?

3. There is typically no minimum ceiling heights provided outside of dwelling units.

If the code is silent, it is unregulated and up to the designer.
 

Cara S.

Registered User
Joined
Nov 25, 2021
Messages
5
Location
Canada
Are you a student, and this is a class assignment? Just curious.
Yes, I am a 2nd year design interior student.
Are you a student, and this is a class assignment? Just curious.
Are you a student, and this is a class assignment? Just curious.
1. What do you mean by an intervening room?

Generally, egress from one occupancy cannot travel through another occupancy. This might answer your question.

2. What do you mean by public aisles? Aisles that are located in a suite, or do you have an occupancy in a corridor?

3. There is typically no minimum ceiling heights provided outside of dwelling units.

If the code is silent, it is unregulated and up to the designer.
Ya, that's where I'm lost, I'm not sure exactly what these questions mean as I combed through the OBC and found nothing in direct relation. I took 1 of 2 building codes classes so I am somewhat familiar, and I was able to find over half the code requirements, but these last few don't seem to exist in the OBC, perhaps because they don't. ??
Thank you, I'll discuss this with my prof.
 

Cara S.

Registered User
Joined
Nov 25, 2021
Messages
5
Location
Canada
Yes, I am a 2nd year design interior student.



Ya, that's where I'm lost, I'm not sure exactly what these questions mean as I combed through the OBC and found nothing in direct relation. I took 1 of 2 building codes classes so I am somewhat familiar, and I was able to find over half the code requirements, but these last few don't seem to exist in the OBC, perhaps because they don't. ??
Thank you, I'll discuss this with my prof.
My prof is in the U.S. so I thought these might pertain to some U.S. building codes
 

tmurray

Registered User
Joined
Jun 10, 2011
Messages
2,185
Location
NB, Canada
My prof is in the U.S. so I thought these might pertain to some U.S. building codes
I guess that would be the first question to answer: what code does our fictional jurisdiction have adopted? Which version? What are the local amendments (if any)?
 

Cara S.

Registered User
Joined
Nov 25, 2021
Messages
5
Location
Canada
I guess that would be the first question to answer: what code does our fictional jurisdiction have adopted? Which version? What are the local amendments (if any)?
Well the building is in Toronto, Ontario so I assume that we would refer to the OBC (Ontario Building Code) as we would in reality. I was hoping someone familiar with the OBC might be able to help. Our codes classes also follow the OBC guidelines.
 

tmurray

Registered User
Joined
Jun 10, 2011
Messages
2,185
Location
NB, Canada
I am back in the office with access to by OBC version of the code. I am assuming this is a Part 3 building.

1. Intervening rooms. There is no definition in the code, nor are there any referenced in the OBC to an "intervening room". A plan or the proper terminology might help drill down on what the instructor is looking for, but without those, it is hard to say what they are concerned about. They might be looking at it as a means of egress/access to exits question, but it is difficult to say.

2. Aisles. Wording is exceptionally important. For example: a public corridor and a corridor used by the public are two different things with different requirements. Without any other information, I would refer to 3.3.1.9.(15), which refers the code user to the fire code. Now, if this is an assembly occupancy, you might be looking for 3.3.2.4., which deals extensively with aisles.

3. Ceiling Height: regulated in a public corridor meeting 3.4.2.5.(1)(d) - this is one of the code sections that lets malls have multiple occupancies without a fire separation between each one.
 
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