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TABLE 5-A—EXTERIOR WALL AND OPENING PROTECTION BASED ON LOCATION ON y� PROPERTY FOR ALL CONSTRUCTION TYPES��2�3—(Continued) D Nonbearing OCCUPANCY CONSTRUCTION Distances are measured to property Ilnes(see Section 503). GROUPa 7YPE x 304.8 for mm LF��.R. Pour-hour N/C �our-hour N/C less than 3 feet Not perniitted less than 3 feet II-F.R. Two-hour N/C less than 20 fcet Protecled less than 20 feet f I I Onc-hour One-hour N/C less than 40 feet ��-N NR,N/C elsewhere [V-li.T. ❑One-hour One-hour N/C Same as bearing except Not pennitted less than 3 fee[ R--� NR,N/C 40 feet or greater 1[-N One-hour N/C less than 3 fcet Same as bcaring Not permitted less than 3 feet NR,N/C elsewhere V One-hour Onc-hour Same as bcaring Not permiucd less than 3 feet V-N One-hour Iess than 3 feel 5ame as bearing Not penniucd less Ihan 3 fect NR elsewhcre 1-�.R. Onc-hour N/C less than 10 fcet Samc as bcaring Not permitted Icss Ihan 5 fect 1I-I�.R. NR,N/C elsewhere Protec�cd Icss Ihan 10 fect 11 One-hour ll-N; S-4 111 Onc-hour tll-N N-H.'I'. Group S,Division 4 open parking gar,iges are nol permined in thcse typcs of consU�uc�ion. V One-hour V-N � ll Ono-hour One-hour N/C Same as bcaring except NR,N/C 40 Nol pennitted Icss than 5 fcel p fcet or greater Protccted Icss than 20 fccl C 1��-N� Onc-hour N/C Iess than 20 fcct S.ime as bearing except NR,N/C 40 Not pemiilted less than 5 fcet � NR,N/C elsewhere fee�or grealer Protccled less Hian 20 1¢et O S-5 � V Onc-h��ur One-huur Same as bcaring Not permiUed Icss(han 5 fect � _ Protectcd less Ihan 20[cc1 W C V-N� One-hour Iess than 20 Ceel Same as hearing Not pem�itted Icss than 5 feet r _ _ NR elscwhere Protected less than 20 feel � Z � n O v m I � ��Z� Four-hour N/C Four-hour N/C less Ihan 3 feet ��-�'�� Nvt permitted less Ihan 3 feet '' 111 One-hour Two-hour N/C Icss lhan 20 feet Protec�ed less than 20 fcet � II I-N One-hour N/C less than 40 feet fO A 1 V-1{.-r. NR,N/C elscwhcm C Z � II Qnc-hour Onc-hour N/C '�1 Same.�s bcaring except Not pemiitled less ihan 3 fcel � NR,N/C 40 feet or greater � V Onc-hour One-hour Same as bearing No(pennitted less than 3 fcet C If-N'- One-hour N/C less ihan 3 feet� NR,N/C elsewhere Same as bearing Not pemiitted less than 3 fce[ r v z � Same as bcaring � U-2 c� �� o i�!/C—Noncomhus�ible. Not re�ulated p NR —Nonratcd. m I I.T.—Heavy timbcr. I'.R.—F�irc resislivc. �See Section 503 for typc,e of w,ills;iffectcd and requiremenis covering percentage of opcnings permi�led in exierior w;ills.I�or�valls facing slree�s,y;irds.ind public w.iys, sec also Scction 60 L5. 'Por addilional reslrictions see Ch:iplers 3 and(, �'�or special provisions and exceptions,see also Seclion 503.4. 'Sce Table 3-A for a description of each occupancy type. �Opcnings requiring prolection in exlcrior walls sh;ill be pro�ected by a fire;�ssembly having�t least a lhrce-fourths-hour fire-proleclion rating. '�tice Scction 3UR.2.I.Excc�liun 3. � ' D