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<br />077200.2 – ROOF ACCESSORIES <br /> <br />Project Manual for Whitted Building Roof Replacement <br />Orange County, Hillsborough, NC <br />Prepared by Atlas Engineering, Inc., 551-A Pylon Drive – Raleigh, NC 27606 <br />May 2022 <br /> <br />2. Provide shop drawings coordinating location of components. The Contractor shall verify <br />existing field conditions. <br /> <br />1.04 DELIVERY, STORAGE, AND HANDLING <br /> <br />A. Handle and store products in the manufacturer’s unopened packaging until ready for <br />installation. Follow the manufacturer’s requirements regarding any storage exposure limits <br />such as temperature or humidity ranges, or ventilation conditions, to prevent damage to <br />components and materials. <br /> <br />B. Storage and handling shall not protect the component finishes. Confirm that condition of <br />components and finishes are undamaged prior to in-place installation of the materials. <br /> <br />1.06 SCHEDULING <br /> <br />A. The Contractor shall coordinate with roofing installation to ensure that roof hatch and railing <br />material is present on site and ready for installation. <br /> <br />PART 2 PRODUCTS <br /> <br />2.01 ROOF HATCH AND GUARDRAIL <br /> <br />A. Roof Hatch: Provide pre-fabricated roof hatch, single-leaf, 30″ x 36″ in size unless otherwise <br />specified by the owner. Hatch shall be thermally-broken and weathertight with fully welded corner <br />joints on the cover and the curb. The cover must be 11 gauge aluminum with a 3″ beaded flange. <br />Cover shall have a heavy extruded EPDM rubber gasket bonded to the cover interior to form a <br />continuous seal when compressed. The cover shall be insulated with 1″ fiberglass covered by an <br />18 gauge aluminum liner. The hatch curb must be 11 gauge aluminum, 12″ in height and set on <br />wood blocking to allow for a minimum 8″ flashing height above the roof surface and with a flange <br />to allow for securement to the blocking/deck. The curb shall be insulated with 1″ thick high-density <br />fiberboard and liner on the outer surface of the curb. The hatch must have compression spring <br />operators to provide a smooth, easy controlled operation. Provide heavy pintle hinges, interior <br />padlock hasp, spring latch with interior and exterior turn handles. The cover must lock in the open <br />position with a rigid hold open arm with a grip handle for release. Hardware must be zinc plated <br />and chromate sealed. The factory finish should be mill finish aluminum. <br /> <br />B. Roof Hatch Safety Rail: Shall be constructed from a galvanized steel frame and finish 42" above <br />roof. Meet OSHA 1910.23 and 1910.27 standards. The safety rail should have a self-closing gate, <br />grab bars, and not penetrate the curb. Similar to roof hatch safety rail sold by A-Mezz Industrial <br />Structures (www.amezz.com). <br /> <br />2.02 LADDER <br /> <br />A. Shall be fabricated and meet ANSI 14.3 and OSHA 3124 requirements. The rungs shall be skid <br />resistant. Skid resistant coating will not be allowed. The ladder shall be constructed from <br />galvanized steel for the exterior and painted steel for the interior. <br /> <br />DocuSign Envelope ID: 89558C18-938A-4BFF-B14A-A2214E8AA5DD