Orange County NC Website
Browse       Search
Orange County Facility Renovations <br />Hillsborough, NC <br />Smith Sinnett ALUMINUM-FRAMED ENTRANCES AND STOREFRONTS <br />2020046/2020047/2020048/2020049/2020055 08 41 13 - 3 <br />B. Structural Loads: <br />1. Wind Loads: As indicated on Drawings. <br />2. Other Design Loads: As indicated on Drawings. <br />C. Deflection of Framing Members: At design wind pressure, as follows: <br />1. Deflection Normal to Wall Plane: Limited to edge of glass in a direction perpendicular to glass <br />plane not exceeding 1/175 of the glass edge length for each individual glazing lite or an amount <br />that restricts edge deflection of individual glazing lites to 3/4 inch, whichever is less. <br />2. Deflection Parallel to Glazing Plane: Limited to 1/360 of clear span or 1/8 inch, whichever is <br />smaller. <br />a. Operable Units: Provide a minimum 1/16-inch clearance between framing members and <br />operable units. <br />3. Cantilever Deflection: Where framing members overhang an anchor point, as follows: <br />a. Perpendicular to Plane of Wall: No greater than 1/240 of clear span plus 1/4 inch for spans <br />greater than 11 feet 8-1/4 inches or 1/175 times span, for spans of less than 11 feet 8-1/4 <br />inches. <br />D. Structural: Test according to ASTM E330/E330M as follows: <br />1. When tested at positive and negative wind-load design pressures, entrance doors, do not evidence <br />deflection exceeding specified limits. <br />2. When tested at 150 percent of positive and negative wind-load design pressures, entrance doors <br />and anchorage, do not evidence material failures, structural distress, or permanent deformation of <br />main framing members exceeding 0.2 percent of span. <br />3. Test Durations: As required by design wind velocity, but not less than 10 seconds. <br />E. Water Penetration under Static Pressure: Test according to ASTM E331 as follows: <br />1. No evidence of water penetration through framing areas, including entrance doors, when tested <br />according to a minimum static-air-pressure differential of 20 percent of positive wind-load design <br />pressure, but not less than 6.24 lbf/sq. ft.. <br />F. Energy Performance: Certified and labeled by manufacturer for energy performance as follows: <br />1. Thermal Transmittance (U-factor): <br />a. Entrance Doors: U-factor of not more than 0.77 Btu/sq. ft. x h x deg F as determined <br />according to NFRC 100. <br />2. Solar Heat-Gain Coefficient (SHGC): <br />a. Entrance Doors: SHGC of not more than 0.35 as determined according to NFRC 200. <br />3. Air Leakage: <br />a. Entrance Doors: Air leakage of not more than 1.0 cfm/sq. ft. at a static-air-pressure <br />differential of 1.57 lbf/sq. ft.. <br />4. Condensation Resistance Factor (CRF): <br />a. Entrance Doors: CRF of not less than 63 as determined according to AAMA 1503. <br />G. Thermal Movements: Allow for thermal movements resulting from ambient and surface temperature <br />changes. <br />DocuSign Envelope ID: 09980A3B-0691-41B4-854D-3865F2287392