Covering windows

[StephNow]

2009 I-codes in Pennsylvania

Commercial job looking to reconfigure space, the proposal is to caulk and seal (make weather-resistant) the existing window, then on the inside construct an infill wall with 3 5/8" metal studs, insulation, 5/8" GWB on the inside and 5/8" black painted plywood on the window side.

Any issues?

 

[cda]

might kick in fire sprinklers, if not there all ready, and building does not have required openings


Other than that why not

 

[JBI]

Oddly, check the applicable Energy Code... may need the glass for a 'daylighting' zone.

 

[StephNow]

Is the plywood concealed combustible construction?

 

[JBI]

Is the plywood concealed combustible construction?

Not if you use FRTW or cementitious board (i.e. Wonderboard).

 

[StephNow]

I looked into it and it appears to be non-permitted concealed combustible construction as it isn't indicated to be FRTW.

 

[cda]

Is the plywood concealed combustible construction?

Why does it matter

 

[cda]

I looked into it and it appears to be non-permitted concealed combustible construction as it isn't indicated to be FRTW.

Once again, why is it not permitted??

 

[JBI]

Probably a type 1 or 2 building...

 

[@david]

~~~~ Type III exterior walls -masonry or non combustible

 

[StephNow]

Sorry for missing the detail, it is a type IIB.