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DocuSign Envelope ID:D561B1AE-DF34-4907-AD06-AOEB37BBE427 <br /> CHAPEL HILL ORANGE COUNTY VISITORS BUREAU August 12,2020 <br /> 308 WEST FRANKLIN,CHAPEL HILL,NC <br /> 1.4 PERFORMANCE REQUIREMENTS <br /> A. Delegated Design: Design louvers, including comprehensive engineering analysis by a qualified <br /> professional engineer, using structural and seismic performance requirements and design criteria <br /> indicated. <br /> B. Structural Performance: Louvers shall withstand the effects of gravity loads and the following loads <br /> and stresses within limits and under conditions indicated without permanent deformation of louver <br /> components, noise or metal fatigue caused by louver blade rattle or flutter, or permanent damage to <br /> fasteners and anchors. Wind pressures shall be considered to act normal to the face of the building. <br /> 1. Wind Loads: Determine loads based on pressures as indicated on Drawings. <br /> C. Seismic Performance: Louvers, including attachments to other construction, shall withstand the effects <br /> of earthquake motions determined according to SEI/ASCE 7. <br /> 1. See structural drawings for design earthquake spectral response acceleration, short period (Sds) <br /> for Project. <br /> 2. Component Importance Factor is 1.0. <br /> D. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes, <br /> without buckling, opening of joints, overstressing of components, failure of connections, or other <br /> detrimental effects. <br /> 1. Temperature Change(Range): 120 deg F material surfaces. <br /> E. Louver Performance Ratings: Provide louvers complying with requirements specified, as demonstrated <br /> by testing manufacturer's stock units identical to those provided, except for length and width according <br /> to AMCA 500-L. <br /> F. Acoustic Performance: Provide acoustical louvers complying with ratings specified, as demonstrated by <br /> testing manufacturer's stock units identical to those specified, except for length and width for airborne <br /> sound-transmission loss according to ASTM E 90. <br /> 1.5 SUBMITTALS <br /> A. Product Data: For each type of product indicated. <br /> 1. For louvers specified to bear AMCA seal, include printed catalog pages showing specified <br /> models with appropriate AMCA Certified Ratings Seals. <br /> B. Shop Drawings: For louvers and accessories. Include plans, elevations, sections, details, and <br /> attachments to other work. Show frame profiles and blade profiles, angles, and spacing. <br /> 1. Show weep paths,gaskets, flashing, sealant, and other means of preventing water intrusion. <br /> 2. Show mullion profiles and locations. <br /> 3. Wiring Diagrams: For power, signal, and control wiring for motorized adjustable louvers. <br /> C. Samples for Initial Selection: For units with factory-applied color finishes. <br /> LOUVERS AND VENTS 089000 -2 <br />