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Replacing the gable end windows was not part of the original scope of work. During construction, it was discovered that the existing windows were held in place primarily by stucco and did not have weatherproofing. These conditions significantly impacted both the project's budget and timeline. Due to supply chain issues for the windows, the need for additional gable end windows, and longer than expected procurement times, a work delay was required between the roof and the windows installation. The four-week library closure to the public began in April 2023 after all windows were on site. The closure of the library while the windows were removed and replaced was necessary for both public safety during the installation and due to the inability of the heating and cooling systems to maintain the climate. The library was safely opened back to the public in May 2023. Although the library was closed to the public during construction, Library and Recreation Staff maintained the library's core services, including online services and curbside pickup and drop-off. During the closure, the contractor maintained staff-only access to the building for routine library tasks. Consultant Services Dahlin Group, the project's design consultant, prepared the plans and specifications, provided construction support services to review shop drawings, responded to requests for information, and provided periodic inspections and design clarifications. Budget During the project's construction, several unforeseen conditions were encountered, requiring change orders and utilization of the project allowances. Eight change orders for a total of $451,589, including a balancing change order, were issued during the project's construction (see Attachment 2). The work included: c Change Order No. 1 modified the window system from storefront to nail and fin configuration. The specified window system had a wider frame that conflicted with the seismic bracing of the building. o Change Order No. 2 made several modifications to the contract, which included: • Additional Structural Repairs to Roof Decking: The existing blocking between the roof truss was not connected to the roof truss, allowing the sheeting to move, which loosened the plywood nails. The structural engineer recommended repairing blocking at crucial areas and stapling the existing plywood to replace the loose nails. ■ Additional Stucco Removal and Installation: The limits of stucco replacement were expanded on the upper south side of the building (facing Bernal Avenue) due to failed waterproofing behind the existing stucco. Additional stucco was removed to install new flashing between the roof and the walls after Dahlin Group recommended replacing the flashing instead of reutilizing the existing flashing. ■ Miscellaneous Wood Repairs and Various Changes: Water-damaged wood was repaired throughout the roof. It included repairs to the fascia boards, roof decking, blocking, and valley areas. Various changes included an additional Page of