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Orange County Architectural Renovations Smith Sinnett / 2023036 <br />Hillsborough, NC Orange County Asset Management Services <br />ALUMINUM WINDOWS 08 51 13 - 2 <br />buckling, opening of joints, overstressing of components, failure of joint sealants, failure of connections, <br />and other detrimental effects. Base engineering calculation on surface temperatures of materials due to both <br />solar heat gain and nighttime-sky heat loss. <br />1.Temperature Change: 120 deg F ambient; 180 deg F material surfaces. <br />2.2 ALUMINUM WINDOWS <br />A.Basis of Design: Kawneer/TRACO TR-9700 TR-9100 or comparable product by one of the following: <br />1.Kawneer North America, an Arconic company. <br />2.Oldcastle BuildingEnvelope. <br />3.Wausau Window and Wall Systems; Apogee Wausau Group, Inc. <br />4.Graham Architectural products <br />B.Frames and Sashes: Aluminum extrusions complying with AAMA/WDMA/CSA 101/I.S.2/A440. <br />1.Thermally Improved Construction: Fabricate frames, sashes, and muntins with an integral, <br />concealed, low-conductance thermal barrier located between exterior materials and window <br />members exposed on interior side in a manner that eliminates direct metal-to-metal contact. <br />C.Insulating-Glass Units: ASTM E2190. Refer to Section 08 80 00 - Glazing 1 inch insulated Simulated <br />Divided Lite unit with Between the Glass Muntins <br />D.Fasteners: Noncorrosive and compatible with window members, trim, hardware, anchors, and other <br />components. <br />1.Exposed Fasteners: Do not use exposed fasteners to greatest extent possible. For application of <br />hardware, use fasteners that match finish hardware being fastened. <br />2.3 ACCESSORIES <br />A.Sill Cover: Head and Jamb Receptors (Subframes) with thermally broken subsills and end dams. Include <br />manufacturer extended sill covers to cap exterior brick. <br />B.Mullions: Extruded aluminum vertical expansion mullions, jamb accessories and extrusion profiles for <br />field mulling window units together as indicated on Drawings. <br />C.Internal Muntins between Glass: Simulated divided lite with integral, internal and external muntins. Both <br />sides of glazing. <br />D.Interior Face Trim: <br />1.Trim wall thickness: Minimum 0.062". <br />2.Installation Method: Snap-fit onto concealed mounting clip. Exposed fasteners are not acceptable. <br />3.Mounting clip material: Extruded aluminum of 6063-T6 alloy and temper. <br />4.Trim clip lengths: 3 inches, space 18 inch on center maximum. <br />2.4 FABRICATION <br />A.Fabricate aluminum windows in sizes indicated. Include a complete system for assembling components <br />and anchoring windows. <br />B.Glaze aluminum windows in the factory. <br />C.Weep Holes: Provide weep holes and internal passages to conduct infiltrating water to exterior. <br />D.Provide water-shed members above side-hinged sashes and similar lines of natural water penetration. <br />E.Mullions: Provide mullions and cover plates, matching window units, complete with anchors for support <br />to structure and installation of window units. Allow for erection tolerances and provide for movement of <br />Docusign Envelope ID: 52FACC74-DA96-491B-B0B8-04AC3961737D