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. <br /> speci�icafions ��� <br /> 1. GENERAL FINISH <br /> DESCRIPTION All exposed aluminum surfaces shaii be free of <br /> scratches and other serious biemishes.All exposed sur- <br /> Work included: Furnish all necessary materials, labor faces shall be given a caustic etch followed by an anodic <br /> and equipment for the complete installation of aluminum oxide treatment to obtain the following finish: (Specitier <br /> framing as shown on the drawings and specified herein. select). <br /> Work not included: Structural support of aluminum fram- An Architectural Class II clear anodic coating in accor- <br /> ing, trim, shims, and perimeter sealants. (Specifier list dance with the Aluminum Association Standard AA-M12 <br /> any other exclusions}. C22 A31 designated as #20 Clear. <br /> Related Work Specified Elsewhere: (Specifier list) An Architectural Class I anodic coating with integral color <br /> in acco�dance with the Aluminum Association Standard <br /> �UALITY ASSURANCE AA-M12 C22 A44 designated as #33 Dark Bronze. <br /> Drawings and specifications are based upon the CTS �Specifier note: #30 Champagne, #31 Lt. Bronze, #32 <br /> framing systems as manufactured by CMt-Cronstroms, Medium Bronze, #35 Black, and #37 Burgundy are <br /> Inc., Eagan, MN. When substitute products are to be available colors offered at a premium price). <br /> considered, technical literature, samples, drawings, and FABRICATION <br /> performance test data must be submitted ten (10) days <br /> prior to bid date.Test reports certified by an independent Mullion and perimeter framing shall be of two-part <br /> laboratory must be made available upon request. construction consisting of gutter and face members, <br /> designed to permit unobstructed face glazing with <br /> PERFORMANCE RE�UIREMENTS through sight lines and no projecting stops. All inter- <br /> mediate vertical and horizontal framing members shall <br /> AIR INFILTRATION: Shall be tested in accordance with have a nominal face dimension of 13/a". Overall depth <br /> ASTM E 283. Infiltration shall not exceed .06 CFM pe� shall be (specifier-select from detail combinations.) <br /> square foot of fixed area. Atl assemblies shall be secured internally by means of <br /> WATER INFILTRATION: Shall be tested in accordance a thermal isolating clip to prevent any metal to metal <br /> with ASTM E 331. No water penetration shall occur at a contact of the face and gutter sections. <br /> test pressure of 10 P.S.F. <br /> II1. EXECUTION <br /> THERMAL PERFORMANCE: Shall be tested in accor- <br /> dance with ASTM C-236 and AAMA 1502.7.The assem- INSTALLATION <br /> bly shall have a maximum U-Value of 0.66 and a All aluminum frames shall be installed in their prepared <br /> minimum CRF of 61. openings as detailed and shall be level, square, plumb, <br /> and according to manufacturer's instructions and ap- <br /> ��. PRODUCTS proved shop drawings. Perimeter shims shall be located <br /> under glass setting blocks, vertical mullions, and as ad- <br /> MATERIAL ditionally necessary. All joints between framing and the <br /> building structure shall be sealed in order to secure a <br /> Extrusions shall be 6063 T5 alloy and temper (ASTM Weather tight installation. Weep holes shall be installed <br /> 6221 alloy G.S. 10A T5). Fasteners used for assembly, per manufacturers shop drawings. <br /> shall be stainless, aluminum, or zinc plated steel in <br /> accordance with ASTM A 164. Perimeter anchors shail PROTECTION AND CLEANING <br /> be stainless or zinc plated steel. (Anchors are provided After installation, the General Contractor shall protect <br /> by the glazing contractors). Glazing gaskets shall be exposed aluminum surfaces from damage by other <br /> E.P.D.M., Elastomeric or Neoprene. trades. The General Contractor shall be responsible for <br /> final cleaning. <br /> (Note:Product improvements may reQuire specification changes without noticeJ <br /> :�'�ll•Cronsfroms � <br /> DATE:DECEMBER 18, 1989 G-� <br />