Wood Framed Tub in Type IB

[jar546]

For a remodel in this high rise the contractor used PT lumber to frame out for the tub. Would you allow this? Code citation or approved?

 

[jar546]

The glass is hurricane impact glass. This thread is about the wood

 

[RLGA]

I’d say no per Section 718.5 (2018 IBC).

 

[mark handler]

Is it treated per section 603.1, Florida Building Code?

 

[e hilton]

2015 ibc 603.1.14 exception: Blocking such as for handrails, millwork, cabinets and window & door frames.

 

[mtlogcabin]

I might say OK to the framing supporting the tub. not much more that a cabinet. However the wood framed wall is a definite no

 

[classicT]

Nope, that is framing, not just blocking. And I am with mtlogcabin, whats the deal with the wood framed wall?

 

[e hilton]

I missed the wall framing ... is the whole apartment done in wood?

 

[Paul Sweet]

I'd rather see pressure treated lumber than light gauge steel around water and electricity.

 

[RLGA]

FRT wood-framed partitions are permitted per Section 603.1, but what is being shown are concealed spaces--not partitions--around the tub; thus, Section 718.5 comes into play. In my opinion, that's the code in the strictest sense, but I agree that the extent and context of the wood framing do not really create an extensive fire risk as long as the wood is FRT.

 

[e hilton]

How is a concealed space under a tub enclosure any different than the “concealed space” in a partition wall, that is not filled with insulation?

And I’m not sure this is concealed space ... there will be access panels to get to the jacuzzi equipment.

 

[jar546]

Is it treated per section 603.1, Florida Building Code?

It is pressure treated not fire treated

 

[ADAguy]

Obviously the floor was not a PT slab.

 

[jar546]

I

Nope, that is framing, not just blocking. And I am with mtlogcabin, whats the deal with the wood framed wall?

the wall is metal. The wood is there for the door frame only

 

[jar546]

FRT wood-framed partitions are permitted per Section 603.1, but what is being shown are concealed spaces--not partitions--around the tub; thus, Section 718.5 comes into play. In my opinion, that's the code in the strictest sense, but I agree that the extent and context of the wood framing do not really create an extensive fire risk as long as the wood is FRT.

Which it is not

 

[Steve Vetter]

Cabinet definition - a case or cupboard usually having doors and shelves

Case definition - a box or receptacle for holding something

It's just a giant sink base cabinet. That's all. APPROVED

 

[classicT]

I

the wall is metal. The wood is there for the door frame only

IBC 603.1#6 (Millwork such as doors, door frames, window sashes and frames.) and #14 (Blocking such as for handrails, millwork, cabinets and window and door frames.) permits frames and blocking respectively. To me, that appears to be a trimmer stud at the door opening, and the tub surround is absolutely framing.

Use FR treated per 603.1#1.1 (Nonbearing partitions where the required fire-resistance-rating is 2 hours or less.).

 

[steveray]

Does the space need sprinklers per NFPA 13?

 

[Builder Bob]

How is a concealed space under a tub enclosure any different than the “concealed space” in a partition wall, that is not filled with insulation?

And I’m not sure this is concealed space ... there will be access panels to get to the jacuzzi equipment.

It is the issue of the volume of open space and potential electrical/ fire hazards - wall stud cavities if you do the math tend to be less than 100 SF. (16" x 96 inches by 3.5" / 144)

 

[tmurray]

Does the space need sprinklers per NFPA 13?

We treat these spaces the same as furniture, provided they are distinct spaces from the building construction.

 

[steveray]

We treat these spaces the same as furniture, provided they are distinct spaces from the building construction.

How big does it have to be to be considered?

 

[tmurray]

How big does it have to be to be considered?

We don't have a clear line in the sand about it. Mostly at the discretion of the inspector.

 

[Builder Bob]

Does the building have fire sprinklers? if it is, then the area or framing behind the tub does not meet the exception for not providing fire sprinklers - I see open wall studs behind the void space shown in the picture - DWV PVC piping and water distribution lines

 

[jar546]

Does the building have fire sprinklers? if it is, then the area or framing behind the tub does not meet the exception for not providing fire sprinklers - I see open wall studs behind the void space shown in the picture - DWV PVC piping and water distribution lines

The building is sprinklered.
Here is an updated photo of underneath the tub.