2022-286-E-AMS-Owens Roofing-Whitted complex roof replacement

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075400.15 – THERMOPLASTIC SINGLE-PLY ROOF SYSTEM Project Manual for Whitted Building Roof Replacement Orange County, Hillsborough, NC Prepared by Atlas Engineering, Inc., 551-A Pylon Drive – Raleigh, NC 27606 May 2022 B. Protect the roof deck and insulation from moisture by providing water cut-offs at the end of each day’s work or when the weather is threatening. Failure to protect the deck and roofing from moisture will result in the removal of damaged materials containing excessive moisture. Remove water cut-offs prior to start of new work. Cut back a sacrificial section of membrane and insulation adjacent to and contaminated by the water-cut-off and dispose of off-site. Layout of insulation boards at nightly tie-ins must be planned to allow for staggering of the insulation boards across these joints. C. Strictly limit foot traffic and material storage on completed roof surfaces. Roof replacement must be sequenced to limit foot and equipment traffic over areas of new roof system/membrane installation. Where foot and equipment traffic over the newly installed roof system cannot be avoided and where sheetmetal installations are occurring over new membrane installations, provide minimum 1″ thick rigid insulation board and 3/4″ thick plywood walkways to protect the new roof system. 3.10 TEMPORARY WATER CUT OFFS AND WATERTIGHNESS DURING CONSTRUCTION A. Install a temporary watertight seal between the section of the new roof completed and the adjacent existing roof system at the end of each workday. The new roof system shall be sealed so that water will not be allowed to travel under the new or existing roof system. When work resumes, contaminated materials from the water cut off including membrane and insulation shall be removed from the work area and disposed of off-site. None of these materials shall remain or be reused in the new system installation. The insulation at the temporary cut off shall be modified to provide a toothed installation of new insulation to prevent an in-line vertical gap at cut-off locations. B. The Contractor shall provide the on-site labor necessary to visually check the interior conditions of the building at times when inclement weather occurs (strong thunderstorms, hurricanes, tropical depressions, extended rain events) and the work crew is not on-site, including after work hours, weekends, and holidays. Discovery of water entry into the building during inclement weather must be immediately followed by action by the Contractor or representative to prevent or limit damage or effect on interior finishes and materials. Immediate preventative actions shall be followed promptly by temporary repair activities to reduce or stop water entry into the roof system. C. The Owner may make temporary repairs or take temporary action to prevent water from entering the building. Performance of these repairs/actions by the Owner does not indicate acceptance of the condition and does not absolve the Contractor from the responsibility of prompt permanent repairs and replacement, repair, or reimbursement for damaged interior finishes/features. The contractor will make permanent repairs with no cost to the Owner. D. If water entry into the roof system occurs, the affected materials shall be removed back to dry/sound materials and replaced with new materials at the Contractor’s expense. E. If water entry into the building occurs, the Contractor must promptly review and agree upon the damages with the Owner’s representative. Repairs to the interior finishes must be completed promptly within a scheduled time frame agreed upon by the Owner. Replacement, repair, or reimbursement for damaged interior materials (equipment, books, furniture, etc.) must be completed promptly within a scheduled time frame agreed upon by the Owner. If the timeline DocuSign Envelope ID: 89558C18-938A-4BFF-B14A-A2214E8AA5DD