SPECIAL DETAILED REQUIREMENTS BASED ON USE AND OCCUPANCY

1 Page 63 Wednesday, May 14, 2014 9:13 AM. CHAPTER 4. SPECIAL DETAILED REQUIREMENTS . BASED ON USE AND OCCUPANCY . SECTION 401 Open mall building perimeter line. For the pur- SCOPE pose of this code, a perimeter line shall be established. DETAILED use and OCCUPANCY REQUIREMENTS . In addi- The perimeter line shall encircle all buildings and struc- tion to the OCCUPANCY and construction REQUIREMENTS in this tures which comprise the open mall building and shall code, the provisions of this chapter apply to the SPECIAL uses encompass any open-air interior walkways, open-air and occupancies described herein. courtyards or similar open-air spaces. The perimeter line shall define the extent of the open mall building.

2 Anchor buildings and parking structures shall be outside of the SECTION 402 perimeter line and are not considered as part of the open COVERED MALL AND OPEN MALL BUILDINGS mall building. Section 402 has been completely reorganized from the 2009 Definitions. The following terms are defined in Chap- code; therefore, the * and ** margin indicators have not been ter 2: included for clarity. ANCHOR BUILDING. Applicability. The provisions of this section shall COVERED MALL BUILDING. apply to buildings or structures defined herein as covered or Mall. open mall buildings not exceeding three floor levels at any point nor more than three stories above grade plane. Except Open mall. as specifically required by this section, covered and open Open mall building.

3 Mall buildings shall meet applicable provisions of this code. FOOD COURT. Exceptions: GROSS LEASABLE AREA. 1. Foyers and lobbies of Groups B, R-1 and R-2 are not Lease plan. Each owner of a covered mall building or required to comply with this section. of an open mall building shall provide both the building and 2. Buildings need not comply with the provisions of fire departments with a lease plan showing the location of this section where they totally comply with other each OCCUPANCY and its exits after the certificate of OCCUPANCY applicable provisions of this code. has been issued. No modifications or changes in OCCUPANCY or use shall be made from that shown on the lease plan with- Open space.

4 A covered mall building and out prior approval of the building official. attached anchor buildings and parking garages shall be surrounded on all sides by a permanent open space or not Construction. The construction of covered and open less than 60 feet (18 288 mm). An open mall building and mall buildings, anchor buildings and parking garages associ- anchor buildings and parking garages adjoining the perim- ated with a mall building shall comply with Sections eter line shall be surrounded on all sides by a permanent through open space of not less than 60 feet (18 288 mm). Area and types of construction. The building Exception: The permanent open space of 60 feet (18 area of any covered mall or open mall building, including 288 mm) shall be permitted to be reduced to not less anchor buildings, of Type I, II, III and IV construction than 40 feet (12 192 mm), provided the following shall not be limited provided the anchor buildings do not REQUIREMENTS are met: exceed three stories above grade plane.

5 1. The reduced open space shall not be allowed for The construction type of open parking garages and more than 75 percent of the perimeter of the cov- enclosed parking garages shall comply with Sections ered or open mall building and anchor buildings; and , respectively. 2. The exterior wall facing the reduced open space Exception: The type of construction allowable build- shall have a fire-resistance rating of not less than ing height and building area of anchor buildings 3 hours; greater than three stories above grade plane shall com- ply with Section 503, as modified by Sections 504 and 3. Openings in the exterior wall facing the reduced 506. open space shall have opening protectives with a Fire-resistance-rated separation.

6 Fire-resis- fire protection rating of not less than 3 hours; and tance-rated separation is not required between tenant 4. Group E, H, I or R occupancies are not located spaces and the mall. Fire-resistance-rated separation is not within the covered or open mall building or required between a food court and adjacent tenant spaces anchor buildings. or the mall. 2014 OREGON STRUCTURAL SPECIALTY CODE 63. Page 64 Wednesday, May 14, 2014 9:13 AM. SPECIAL DETAILED REQUIREMENTS BASED ON USE AND OCCUPANCY . Tenant separations. Each tenant space shall throughout with an automatic sprinkler system in accordance be separated from other tenant spaces by a fire partition with Section , which shall comply with the all of the complying with Section 708.

7 A tenant separation wall following: is not required between any tenant space and the mall. 1. The automatic sprinkler system shall be complete and Anchor building separation. An anchor operative throughout occupied space in the mall build- building shall be separated from the covered or open ing prior to OCCUPANCY of any of the tenant spaces. mall building by fire walls complying with Section Unoccupied tenant spaces shall be similarly protected 706. unless provided with approved alternative protection. Exceptions: 2. Sprinkler protection for the mall of a covered mall building shall be independent from that provided for 1. Anchor buildings of not more than three sto- tenant spaces or anchor buildings.

8 Ries above grade plane that have an occu- pancy classification the same as that permitted 3. Sprinkler protection for the tenant spaces of an open for tenants of the mall building shall be sepa- mall building shall be independent from that provided rated by 2-hour fire-resistance-rated fire barri- for anchor buildings. ers complying with Section 707. 4. Sprinkler protection shall be provided beneath exterior 2. The exterior walls of anchor buildings sepa- circulation balconies located adjacent to an open mall. rated from an open mall building by an open 5. Where tenant spaces are supplied by the same system, mall shall comply with Table 602. they shall be independently controlled. Openings between anchor building Exception: An automatic sprinkler system shall not be and mall.

9 Except for the separation between Group required in spaces or areas of open parking garages R-1 sleeping units and the mall, openings between separated from the covered or open mall building in anchor buildings of Type IA, IB, IIA or IIB con- accordance with Section and constructed in struction and the mall need not be protected. accordance with Section Parking garages. An attached garage for the Interior finishes and features. Interior finishes storage of passenger vehicles having a capacity of not within the mall and installations within the mall shall comply more than nine persons and open parking garages shall with Sections through be considered as a separate building where it is sepa- rated from the covered or open mall building or anchor Interior finish.

10 Interior wall and ceiling finishes building by not less than 2-hour fire barriers con- within the mall of a covered mall building and within the structed in accordance with Section 707 or horizontal exits of covered or open mall buildings shall have a mini- assemblies constructed in accordance with Section 711, mum flame spread index and smoke-developed index of or both. Class B in accordance with Chapter 8. Interior floor fin- ishes shall meet the REQUIREMENTS of Section 804. Parking garages, open or enclosed, which are sepa- rated from covered mall buildings, open mall buildings Kiosks. Kiosks and similar structures (temporary or anchor buildings shall comply with the provisions of or permanent) located within the mall of a covered mall Table 602.