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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 />A. General: Provide glazing systems capable of withstanding normal thermal movement and wind <br />and impact loads (where applicable) without failure, including loss or glass breakage <br />attributable to the following: defective manufacture, fabrication, and installation; failure of <br />sealants or gaskets to remain watertight and airtight; deterioration of glazing materials; or other <br />defects in construction. <br />B. Glass Design: Glass thickness designations indicated are minimums and are for detailing only. <br />Confirm glass thicknesses by analyzing Project loads and in- service conditions. Provide glass <br />lites in the thickness designations indicated for various size openings, but not less than <br />thicknesses and in strengths (annealed or heat treated) required to meet or exceed the following <br />criteria: <br />Glass Thicknesses: Select minimum glass thicknesses to comply with ASTM E 1300, <br />according to the following requirements: <br />a. Design Wind Loads: Determine design wind loads applicable to Project from <br />basic wind speed indicated in miles per hour (meters per second) at 33 feet (10 m) <br />above grade, according to ASCE 7, "Minimum Design Loads for Buildings and <br />Other Structures ": Section 6.5, "Method 2- Analytical Procedure," based on mean <br />roof heights above grade indicated on Drawings. <br />b. Probability of Breakage for Vertical Glazing: 8 lites per 1000 for lites set <br />vertically or not more than 15 degrees off vertical and under wind action. <br />1) Load Duration: 60 seconds or less. <br />Maximum Lateral Deflection: For the following types of glass supported on all 4 <br />edges, provide thickness required that limits center deflection at design wind <br />pressure to 1150 times the short side length or 1 inch (25 mm), whichever is less. <br />1) For monolithic -glass lites heat treated to resist wind loads. <br />2) For insulating glass. <br />C. Thermal Movements: Provide glazing that allows for thermal movements resulting from the <br />following maximum change (range) in ambient and surface temperatures acting on glass <br />framing members and glazing components. Base engineering calculation on surface <br />temperatures of materials due to both solar heat gain and nighttime -sky heat loss. <br />Temperature Change (Range): 120 deg F (67 deg C), ambient; 180 deg F (100 deg C), <br />material surfaces. <br />D. Thermal and Optical Performance Properties: Provide glass with performance properties <br />specified based on manufacturer's published test data, as determined according to procedures <br />indicated below: <br />1. For monolithic -glass lites, properties are based on units with lites of thickness indicated. <br />2. For insulating -glass units, properties are based on units of thickness indicated for overall <br />unit and for each lite. <br />GLAZING 088000-2 <br />