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MOSELEYARCHITECTS 11430 N. Community House Road Suite 225 Charlotte, NC 28277 P: (704) 540 -3755 July 19, 2016 RE: Royal Oaks Elementary School Mr. David Burnett Cabarrus County Schools 4425 Old Airport Road Concord, NC 28025 Dear Mr. Burnett: The Post Bid Addendum for Royal Oaks Elementary School (ROES) addresses plan review comments from the North Carolina Department of Insurance- Office of the State Fire Marshal (NCDOI- OSFM). At the time of design, the timeframe required to complete State plan review through NCDOI -OSFM was very uncertain. Design Development drawings were sent for review in late September, 2015 and the project was not reviewed until December 17. In order to meet the prescribed deadlines for the project to bid. Royal Oaks elementary School needed to be completed ahead of our review process. As a result, several key items, centered on comments related to egress concerns in the classroom wings. needed to be incorporated into the documents. At around the same time. Cabarrus County Schools (CCS) requested a change in the focus of ROES to a magnet School of the Arts. The Post Bid Addendum addresses these issues as well as takes advantage of resulting conditions to simplify construction and provide an improved student experience. Part D was previously served by 2 stairwells, ST1 to the east and ST2 at the west.. which provided more than adequate egress from capacity and distance standpoints. NCDOI -OSF was concerned that a third point of egress was required based on the total number of occupants in the building. The plan reviewer also expressed concern with the dead end distance outside of toilet rooms B006 and B008. Although the document changes for the School of the Arts were not yet ready for incorporation, the room changes would consequently change the occupancy requirements. As such, it made sense to recalculate the egress in the classroom wings based on those revisions. The existing occupant load plus the additional pressure from the requested changes was simply too many occupants. Despite proposed alternates that demonstrated how the layout could meet the requirements without further egress, none were accepted by the NCDOI -OSF reviewer. ST3 was added in the center of Part D and the wing was modified to accommodate the shift in classrooms and take advantage of the lowered egress capacity in each of the three stairs. ST1 and ST2 were originally planned as specially sized units. Addendum three changed all the stairs to an identical width and layout. Modifying ST1 from an "L" shape to a switchback allowed better ventilation access to Mechanical B012 and exterior light in Speech B1006. The Addendum also moves the building separation from plan Part B to Part E, which changed the firewall from a two -story construction to single story. The building systems were adjusted to work with these changes and included as well. The site plan was also changed to include access from the new egress locations to the sidewalk system. Designing solutions. Building tru•, nriching lives. Attachment number 1 \n G -3 Page 179