ETThompson
SAWHORSE
Hi,
Wondering about the following situation, specifically on clerestory glazing protection at adjacencies to existing buildings.
We're working on a project for a ballet/dance company (rehearsal and class studios, a performance space, set and lighting storage, and admin/office spaces). There are two existing buildings we're working with, one mainly for performance (in which we're adding a new dance studio) + storage, and one studios and admin (see diagrammatic plan and section attached).
We're under the Ohio Building Code 2017 which is based on the 2015 IBC. We're figuring the studios can be "B" under the "skills and training" language in B. Therefore the building housing admin and studios is overall B. This building is approx. 34,100sf and includes a small (3,800 sf) mezzanine office level. The intent/desire is *not* to sprinkler this existing space, and we're assuming a Fire Wall (3 hr per 706.4) between this and the remainder of the project.
The performance /storage building (about 20,500sf) includes the Auditorium (A-1), a new dance studio (B), and storage (S-1, due to large sets, lumber,etc). Auditorium would have about 240 occupants based on fixed seating.
The new addition we're proposing (about 3,500sf) connects the two buildings and functions as a multipurpose / gathering / entry galleria space. We're assuming it is A-3 (possibly A-2 since it will occasionally be used to serve food at functions). We're figuring this will be construction type IIIB.
The performance building and the new entry/multifunction would be fully sprinkelered.
So in summary, after our addition there would be two 'buildings' for the purposes of the code - the non-sprinkelered performance building to the south, and the new sprinkelered addition/multifunction space + performance building to the north, separated by a 3-hr Fire Wall.
We're proposing a roof spanning between the two buildings, above the level of the existing roofs, and would like to include clerestory glazing for natural light, immediately above and roughly in line with the adjacent walls of the existing buildings.
First, are we required to have *any* protection or limitation on the glazing that would be over the performance building? 705.8.6 would *not* apply because these would be considered one building, correct? (as noted in exception 2)
The second line of (desired) clerestory glazing would be over the fire wall between the multifunction space and the existing dance studio/office building. Would the FSD be considered zero in this case and therefore we wouldn't be permitted any openings? Or per 706.6.1 would we be allowed to have a 30" parapet and then 3/4 hr protected opening above that? Or is there another approach we haven't considered?
Having challenges determining what applies in this situation.
Thanks in advance for your help! Other than the glazing question, let me know if you see any problems in our assumptions or reasoning.
Wondering about the following situation, specifically on clerestory glazing protection at adjacencies to existing buildings.
We're working on a project for a ballet/dance company (rehearsal and class studios, a performance space, set and lighting storage, and admin/office spaces). There are two existing buildings we're working with, one mainly for performance (in which we're adding a new dance studio) + storage, and one studios and admin (see diagrammatic plan and section attached).
We're under the Ohio Building Code 2017 which is based on the 2015 IBC. We're figuring the studios can be "B" under the "skills and training" language in B. Therefore the building housing admin and studios is overall B. This building is approx. 34,100sf and includes a small (3,800 sf) mezzanine office level. The intent/desire is *not* to sprinkler this existing space, and we're assuming a Fire Wall (3 hr per 706.4) between this and the remainder of the project.
The performance /storage building (about 20,500sf) includes the Auditorium (A-1), a new dance studio (B), and storage (S-1, due to large sets, lumber,etc). Auditorium would have about 240 occupants based on fixed seating.
The new addition we're proposing (about 3,500sf) connects the two buildings and functions as a multipurpose / gathering / entry galleria space. We're assuming it is A-3 (possibly A-2 since it will occasionally be used to serve food at functions). We're figuring this will be construction type IIIB.
The performance building and the new entry/multifunction would be fully sprinkelered.
So in summary, after our addition there would be two 'buildings' for the purposes of the code - the non-sprinkelered performance building to the south, and the new sprinkelered addition/multifunction space + performance building to the north, separated by a 3-hr Fire Wall.
We're proposing a roof spanning between the two buildings, above the level of the existing roofs, and would like to include clerestory glazing for natural light, immediately above and roughly in line with the adjacent walls of the existing buildings.
First, are we required to have *any* protection or limitation on the glazing that would be over the performance building? 705.8.6 would *not* apply because these would be considered one building, correct? (as noted in exception 2)
The second line of (desired) clerestory glazing would be over the fire wall between the multifunction space and the existing dance studio/office building. Would the FSD be considered zero in this case and therefore we wouldn't be permitted any openings? Or per 706.6.1 would we be allowed to have a 30" parapet and then 3/4 hr protected opening above that? Or is there another approach we haven't considered?
Having challenges determining what applies in this situation.
Thanks in advance for your help! Other than the glazing question, let me know if you see any problems in our assumptions or reasoning.
