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I- 111111 MEMORANDUM T , R • A To: Lyle Oman; Building Official, City of Orono From: Victor Pechaty,Ted Rozeboom Architects Date: 12 January 1997 JAN 1 5 1997 Subject: Orono Ice Arena: Response to Remaining Code Issues This memorandum addresses the code issues listed in Mr. Oman's memo dated January 9, 1997. I.Plan of Handrails at Bleacher Aisles: see attached II. Code Compliance of Roof Assembly: 1.The roofing assembly specified meets the following testing criteria: UL Class A or B and UBC Section 17-4 as fire retardant 2. UL Standard 1256 for internal burn rating 3. Factory Mutual FM-I-60 wind uplift requirements. III.Exiting Strategy for Off-Season Uses The building as designed provides the required exit width to exit the entire occupant load associ- ated with off-season uses; however, UBC requires 4 exits from spaces with occupant loads over 1000.Two exits must be a minimum of 1/2 of the overall diagonal distance of the ice sheet apart. The remaining two exits must be arranged a "reasonable distance apart so that if one becomes blocked the others will be available." (UBC 1003.3) The total exit width required for the ice sheet area with 1034 occ. x 0.2 =206.8" The solution is as follows: 1. 10'-0" opening in dasher boards @ zamboni access with exiting through north double doors. 2. 6'-0" opening in dasher boards @ southeast corner of rink with exiting through "player entrance".The player entrance doors will be revised from a single door to a 6'-0" double door. 3. 6'-0" opening in dasher boards @ southwest corner of rink with exiting through 4 doors into lobby.Architect will design 6'-0" wide portable stair assembly to allow access from rink level to lobby level. 4. 3'-0" opening in northwest corner of rink with exiting up north bleacher stair to west exit. The City of Or o is to r- -'ve copies of dasher board drawings for city review to confirm the location of ex' s in the asher s oard assembly. Sincerely, Victor Pechaty MA, Project Architect, TRA ira ff Ted Rozeboom Architects • 2965 C. co Point Road,Wayzata,Minnesota 55391 • Tel:(612)471-8780 Fax:(612)471-8740