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Gateway Park Center PERKINS+WILL <br /> 810495.000 <br /> 12/06/18 <br /> <br /> <br />STRUCTURAL-SEALANT-GLAZED CURTAIN WALLS <br /> 08 44 23 - 6 <br /> <br /> <br />2. Provide exterior glazing units complying with performance requirements as <br />tested by entities listed with the Florida Building Code Commission. <br />J. Thermal Movements: Allow for thermal movements resulting from ambient and <br />surface temperature changes: <br />1. Temperature Change: 120 deg F, ambient; 180 deg F, material surfaces. <br />K. Sound Transmission: Fixed glazing and framing areas shall have the following <br />sound-transmission characteristics: <br />1. Outdoor-Indoor Transmission Class: Minimum 34 when tested for laboratory <br />sound transmission loss according to ASTM E 90 and determined by <br />ASTM E 1332. <br />L. Structural-Sealant Joints: <br />1. Designed to carry gravity loads of glazing. <br />2. Designed to produce tensile or shear stress of less than 20 psi. <br />M. Structural Sealant: Capable of withstanding tensile and shear stresses imposed by <br />structural-sealant-glazed curtain walls without failing adhesively or cohesively. <br />When tested for preconstruction adhesion and compatibility, cohesive failure of <br />sealant shall occur before adhesive failure. <br />1. Adhesive failure occurs when sealant pulls away from substrate cleanly, <br />leaving no sealant material behind. <br />2. Cohesive failure occurs when sealant breaks or tears within itself but does not <br />separate from each substrate because sealant-to-substrate bond strength <br />exceeds sealant's internal strength. <br />2.2 MANUFACTURERS <br />A. Basis-of-Design Product: Subject to compliance with requirements, provide <br />Physical Security LLC; RT3 Series Curtainwall System (Level E) and Captured <br />System or comparable product by one of the following: <br />1. Harmon Inc. <br />2. Permasteelisa North America Corp. <br />B. Source Limitations: Obtain all components of curtain-wall system, including framing <br />and accessories, from single manufacturer. <br />2.3 FRAMING <br />A. Framing Members: Manufacturer's extruded- or formed-aluminum framing <br />members of thickness required and reinforced as required to support imposed <br />loads. <br />1. Glazing System: