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SHSC HVAC and Roof Replacement Smith Sinnett / 2020072 <br />Orange County, North Carolina <br /> <br />METAL ROOF SYSTEM 07 41 00 - 7 <br />F. End Laps: End laps are permitted only where panel run exceeds 60 feet, in which case only one end lap <br />will be permitted. The location of end laps, if required, shall be subject to approval by the Architect. No <br />other end laps will be acceptable. <br />G. Roofing Panel Joints: Fabricate panel joints with factory applied "in-seam" sealant to prevent capillary <br />water leakage through panel-to-panel seams caused by wind driven rain. <br />1. Systems requiring field applied sealant tape systems may be acceptable to the Architect if this is <br />part of the manufacturer's standard installation method. <br />H. Ridge and Hip Closure assembly: Ridge and hip assembly shall be designed to provide proper <br />ventilation to prevent condensation and also prevent water penetration during the specified wind <br />conditions. The ridge assembly shall be designed and installed to allow roof panels to ventilate and to <br />expand and contract length-wise as the temperature of the roof panels changes. <br />I. Condensation: Fabricate panels for control of condensation, including vapor inclusion of seals and <br />provisions for breathing, venting, weeping and draining. <br />2.7 AUXILIARY INSULATION MATERIALS: <br />A. Provide rigid insulation under metal roof. <br />B. Insulation shall comply with: ASTM C578 Type IV, 25 psi, 1.55 pcf density. <br />C. Mastic Sealer: Type recommended by insulation manufacturer for bonding edge joints and filling voids. <br />D. Mechanical Anchors: Corrosion-resistant type as recommended by insulation manufacturer for deck <br />type and complying with fire and insurance wind-uplift rating requirements. <br />1. Provide anchors of design and spacing to meet the wind loading requirements specified. Provide <br />system tested and approved for FM 1-130 wind-uplift rating and designed to resist the specified <br />wind loads. <br />E. Thermal spacers: Provide an air gap of approximately ½" between the bottom of the roof panel and the <br />roof deck. Install manufacturer provided thermal spacers of size spacing and configuration to eliminate <br />panel deflection and flutter in addition to support walking loads on the roof.. <br />F. Flashing of existing roof top equipment: Coordinate installation of counterflashings with assemblies <br />which shall be protected by counterflashing and warranted as part of the metal roof system. Install <br />counterflashings in reglets or receivers. Include all components, sealants, flashings, fasteners and other <br />materials to provide a complete first class job. <br />G. Roof-Penetration Flashing: Coordinate roof-penetration flashing installation with roofing and <br />installation of items penetrating roof including but not limited to plumbing, HVAC, electrical and other <br />equipment. All flashing assemblies shall be designed by the roof system manufacturer to provide a <br />completely warranted, waterproof roof system. <br />H. Crickets: Include crickets to divert water away from roof top curbs. <br />I. Roof Edge, Eave and Trim Flashing shall be provided and designed by the roof system manufacturer to <br />provide a completely warranted, waterproof roof system. <br />2.8 SNOW GUARDS <br />A. Snow Guards: Prefabricated, noncorrosive units designed to be installed without penetrating metal roof <br />panels, and complete with predrilled holes, clamps, or hooks for anchoring. Refer to the drawing for the <br />extents. <br />1. Seam-Mounted, Bar-Type Snow Guards: Aluminum rods or bars held in place by stainless-steel <br />clamps attached to vertical ribs of standing-seam metal roof panels. <br />2. Finish: Aluminum Mill <br />3. Provide product from the following manufacturers: Precision Snow Guards, Snowblox-Snojax, <br />John Stortz & Son or approved equal <br />DocuSign Envelope ID: 94E7997D-4F29-42F6-A9B4-0A160438D2A6