Laserfiche WebLink
CRYSTAL <br />L <br />WINDOW A DOOR SYSTBMB, ITO. <br />SERIES 2100 CW-PG60-FW FIXED WINDOW <br />B. Non Structural Thermal Barriers: <br />1. Non structural thermal barriers are used only in conjunction with structural thermal <br />barriers. The purpose of non structural thermal barriers is to enhance thermal <br />performance of the primary structural thermal barriers (polyamide struts) by inhibiting heat <br />transfer through thermal radiation and convection. Non structural thermal barriers shall not <br />be used as primary load carrying members. <br />2. Rigid non structural thermal barriers shall be constructed of extruded polyvinylchloride <br />(PVC). <br />2.4 GLASS <br />A. Glazing Materials: <br />1. Vertical Glazing: For glass surfaces sloped 15 degrees or less from vertical. Design glass <br />to resist design wind pressure based on glass type factors for short -duration load. <br />2. Thickness: Where glass thickness is indicated, it is a minimum. Provide glass liter in <br />thicknesses as needed to comply with requirements Indicated. <br />3, Strength: Where float glass is Indicated, provide annealed float glass. Where fully <br />tempered glass is indicated, provide Kind FT heat -treated float glass. <br />4. Thermal and Optical Performance Properties: Provide glass with performance properties <br />specified, as Indicated in manufacturer's published test data, based on procedures <br />Indicated. <br />a. U-Factors: Total -glazing values, according to NFRC 100 and based on LBL's <br />WINDOW 5.2 computer program, expressed as BTU/sq.ft x h x deg F (W/sq. m x <br />K). <br />b. Solar Heat -Gain Coefficient and Visible Transmittance: Center -of -glazing values, <br />according to NFRC 200 and based on LBL's WINDOW 5.2 computer program. <br />C. Visible Reflectance: Center -of -glazing values, according to NFRC 300. <br />5. Float Glass: ASTM C 1036, Type 1, Quality-0, Class 1 (clear) unless otherwise <br />Indicated. <br />6. Coated Glass: ASTM C 1376, Type 1, Quality-Q3, Class 1 (clear) unless otherwise <br />Indicated, of kind and condition indicated. <br />7. Laminated Glass: ASTM C 1172, Type 1, Quality-Q3, Class 1 (clear) unless otherwise <br />Indicated, of kind and condition indicated. <br />B. Insulating Glass Units: <br />1, Factory -assemble units consisting of sealed lites of glass separated by a PPG Intercept <br />Spacer system consisting of a one-piece, metallic, U-channel design that creates an <br />effective thermal barrier to help reduce conducted heat loss through the window. <br />2. Insulating glass units shall be sealed with an integral dessicant matrix and a butyl sealant <br />extruded around the entire perimeter of the spacer to achieve a seal. The sealant applied <br />is to be Dual Seal Equivalent (DSE). Interspace to be filled with air or argon gas as <br />required by thermal computer simulation. <br />3. insulating Glass Types: Low-E coated, insulating glass units. <br />a. Overall Unit Thickness: 7/8" (22mm) <br />b. Thickness of Each Glass Lite: 3/32" , 1/8" or 1/4 inch <br />C. Outdoor Lite: Class 1 (Clear) float glass, or fully tempered float glass. <br />d. Interspace Content: Air or Argon Gas. <br />e. Indoor Lite: Class 1 (Clear) float glass, or fully tempered float glass. <br />f. Low-E Coating: Sputtered on second or third surface. <br />g. Glass Winter Night time U-Value: 0.26 maximum. <br />h. Solar Heat Gain Coefficient: 0.46 maximum. <br />I. Provide safety glazing labeling, if necessary. <br />2.5 WINDOW ACCESSORIES <br />Provide the following accessories as specified in the contract drawings. Finish to match window <br />SECTION 085113 - 5 <br />