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• The building is not required to have fire sprinklers based on the construction type, occupancy classification, height, stories, or floor area. Since they were existing when the building was a maintenance shop,we chose to maintain and modify them. • Based on a full code analysis for the building as if it did not have sprinklers,there are two areas where the current design does not meet code due to not having the exceptions afforded by the fire sprinklers. An Area of Refuge at the elevator with a two-way communication system and 1-hour rated corridors would be required. • The proposed exit distances meet the code requirements with the number of stairways and exits we have.The greatest travel distance is 140 feet from the upstairs conference room to the exits along the front canopy. If there was an exit blocked because of fire under the canopy, the nearest north wall exit is approx. 90 feet away. • NFPA 13-2016 Section 8.15.7 allows elimination of fire sprinkler coverage at canopies were constructed of limited combustible materials. While the roof structure does not explicitly meet the definition of limited combustible, the supporting columns are non-combustible, the supporting wall is clad in non-combustible materials,and the roof system is Heavy Timber. • The designed roof structure meets Type-VI-HT construction which is allow to be used in place of 1- hour construction per OSSC Table 601, footnote c. • All of the heavy timber beams,trusses and rafters have been oversized as compared to the required structural members load carrying capacity and exceed the minimum dimensions required in OSSC Table 2304.11. See attached study for fire resistance for heavy timber members. • There are no concealed spaces in the roof system. • The roofing will be metal panels. • There are no occupancy or storage uses for the canopy area.The canopy is for weather protection only. • The building has multiple egress paths and all spaces have a secondary egress which does not require exiting under the canopy. See First Floor Egress Plan i Logic for Approval of AM&M: J Logic Path 1. The primary benefit of automatic fire suppression systems is to afford occupants additional time to exit large buildings in the case of a fire event. Throughout the code there are allow many allowances, increases, or exceptions to requirements for having fire sprinklers including: allowable floor area increases, greater occupant travel distances and fire rating reductions. In this building remodel, there are only a couple minor areas on the interior of the building that the fire sprinklers have allowed over a non- sprinkled building. So, the significant benefit that the sprinkler system is providing is additional time for the occupants of bath floors to exit the premises. Further,the fire-rated construction of the canopy provides the same additional time benefit by assuring the structural integrity to allow exiting time. As with any multi- exit building, there is no way to predict the location of any fire threats. This project's egress pathways far exceed code requirements with three stairs (one being exterior), and eight exit doors spread around the perimeter. If one exit is blocked, the occupants have several other options to exit the building in the time afforded by the fire sprinklers and exterior canopy rate construction. Generally,the occupants of this building will be employees of this private company. They will have first hand knowledge of the building layout, exit locations and alternate routes if necessary;thus reducing the indecision time that people unfamiliar with buildings can often have. Visitors are minimal and always escorted. Logic Path 2: Excerpt from 2022 OSSC, Preface page vii: Defining the use of the buildings is very important as it sets the tone for the remaining chapters of the code. Occupancy works with the height, area and construction type requirements in Chapters 5 and 6, as well as the special provisions in Chapter 4, to determine "equivalent risk,"or providing a reasonable level of protection or life safety for building occupants. The determination of equivalent risk involves three interdependent considerations: (1) the level of fire hazard associated with the specific occupancy of the facility;(2) the reduction of fire hazard by limiting the floor area(s) and the height of the building based on the fuel load(combustible contents and burnable building components);and(3) the level of overall fire resistance Page 2 of 5 CARLSON VEIT ARCHITECTS, P.C. 3095 RIVER ROAD NORTH • SALEM,OREGON 97303 • 503-390-0281 • FAX 503-390-2459