$E=$ Elevator

SR $=$ Storage Room $(150$ SF or $14$ SM$)$

$R=$ Restroom

TR $=$ Trash Room $(120$ SF or $11\mathrm{.}1$ SM$)$

$S=$ Exit Stair

OL $=$ Occupant Load

Figure $6\mathrm{.}1$ Fire ratings: Office building, eighth floor $($nonsprinkdered building$).$ROBLEM $2$

Refer to the following International Building Code $($IBC$)$ Tables:

Table $508\mathrm{.}4,$ "Required Separation of Occupancies $($Hours$)"$ in Appendix A$.11$

$($or Figure $6\mathrm{.}6$ in the Guidebook$)$

IBC Table $509,$ "Incidental Uses" in Appendix A$.12($or Figure $6\mathrm{.}8$ in the Guidebook$)$

IBC Table $1020\mathrm{.}1,$ "Corridor Fire$-$Resistance Rating" in Appendix A$.13($or Figure $5\mathrm{.}11$ in

the Guidebook$)$

IBC Table $716\mathrm{.}5,$ "Opening Fire Protection Assemblies, Ratings and Markings" in

Appendix A$.14($or Figure $6\mathrm{.}12$ in the Guidebook$)$

Also, use the "Comparison of Occupancy Classifications" chart in Appendix A$.1$

as required.

Figure $6\mathrm{.}1$ is a floor plan of the eighth floor in a $10-$story nonsprinklered office building.

It shows the layout of the building core and five tenant spaces, as well as the interior of one

tenant space. The tenants are either Business $($B$)$ or Mercantile $($M$)$ occupancies, as shown

on the plan. The legend at the bottom of the floor plan indicates the name of each labeled

room or space. Specific wall assemblies on the floor plan are labeled with a circled letter

designation, and certain doors $($or opening protectives$)$ are labeled with a circled number

designation.

Based on the floor plan, the IBC tables mentioned earlier, and your knowledge of the

codes, first determine the fire resistance rating for each of the labeled wall assemblies. Then,

for each of the labeled opening protectives, determine the fire protection rating of the door

assembly. Also note any situations where an automatic extinguishing system could be sub$-$

stituted for a rated wall. Write your answers and the code table used in the spaces provided

here. If a rating is not required for a particular item, write $"$no rating" in the space provided;

or if a code table is not used, write $"$no table" in the space provided.

Hourly Fire Resistance Rating of Wall Assemblies:

A$.$ Rating:

Code Table

B$.$ Rating:

Code Table.

C$.$ Rating:

Code Table: $$

D$.$ Rating:

Code Table:

E$.$ Rating:

Code Table: $$

F$.$ Rating:

Code Table:

G$.$ Rating:

Code Table:

H$.$ Rating:

Code Table

Hourly Fire Protection Rating of Opening Protectives:

Rating

Code Table:

Rating:

Code Table:

Rating:

Code Table:

Rating:

Code Table:

Rating:

Code Table:

Rating:

Code Table:

Rating:

Code Table:

Rating

Code Table: