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DocuSign Envelope ID: 313DA256 -1EDE- 4396- A716- 4C53B809027E <br />JERRY M. PASSMORE CENTER ADDITION AND RENOVATION <br />HILLSBOROUGH, NORTH CAROLINA <br />K. Install protection mat over roofing membrane, overlapping a minimum of 6 inches (150 mm). <br />Install an additional protection mat layer at projections, pipes, vents, and drains, overlapping a <br />minimum of 12 inches (300 mm). <br />L. Aggregate Ballast: Apply aggregate ballast uniformly over roofing membrane at the rate <br />required by membrane roofing system manufacturer, but not less than the following, spreading <br />with care to minimize possibility of damage to membrane roofing system. Lay ballast as <br />roofing membrane is installed, leaving roofing membrane ballasted at the end of the workday. <br />1. Ballast Weight: Size 2 aggregate, 13 lb /sq. ft. (65 kg /sq. m), at corners and perimeter; <br />Size 4 aggregate, 10 lb /sq. ft. (50 kg /sq. m), elsewhere. <br />3.6 BASE FLASHING INSTALLATION <br />A. Install sheet flashings and preformed flashing accessories and adhere to substrates according to <br />membrane roofing system manufacturer's written instructions. <br />B. Apply bonding adhesive to substrate and underside of sheet flashing at required rate and allow <br />to partially dry. Do not apply bonding adhesive to seam area of flashing. <br />C. Flash penetrations and field- formed inside and outside corners with cured or uncured sheet <br />flashing. <br />D. Clean splice areas, apply splicing cement, and firmly roll side and end laps of overlapping <br />sheets to ensure a watertight seam installation. Apply lap sealant and seal exposed edges of <br />sheet flashing terminations. <br />E. Terminate and seal top of sheet flashings and mechanically anchor to substrate through <br />termination bars. <br />3.7 FIELD QUALITY CONTROL <br />A. Testing Agency: Owner will engage a qualified independent testing and inspecting agency to <br />perform roof tests and inspections and to prepare test reports. <br />B. Final Roof Inspection: Arrange for roofing system manufacturer's technical personnel to <br />inspect roofing installation on completion and submit report to Architect. <br />1. Notify Architect or Owner 48 hours in advance of date and time of inspection. <br />C. Repair or remove and replace components of membrane roofing system where test results or <br />inspections indicate that they do not comply with specified requirements. <br />D. Additional testing and inspecting, at Contractor's expense, will be performed to determine <br />compliance of replaced or additional work with specified requirements. <br />BALLASTED EPDM MEMBRANE ROOFING 075310-9 <br />