Salient Characteristics - 21 CES Tints and Blinds Installation.docx

This document is a Salient Characteristics specification for window tint and blinds installation at Cheyenne Mountain Space Force Station under solicitation number PSFBTINTBLINDS, issued by the 21st Contracting Squadron at Peterson Space Force Base. The specification establishes mandatory glass standards and performance requirements for sealed insulating glass (IG) units used in the project.

Glass requirements mandate compliance with specific ASTM standards: annealed float glass must meet ASTM C1036 Type I, heat-strengthened glass must meet ASTM C1048 Type I with HS designation, and tempered float glass must meet ASTM C1048 Type I with FT designation, with all glass qualified as either Class 1 (clear) or Class 2 (tinted) at Quality Q3. Laminated glass must comply with ASTM C1172. The sealed insulating glass (IG) vision units for vertical applications consist of dual-sealed glass lites with polyisobutylene or thermoplastic spacer primary seals and silicone or organic sealant secondary seals, certified through either the Insulating Glass Certification Council (IGCC) to ASTM E2190 or the Insulating Glass Manufacturers Alliance (IGMA) to CAN/CGSB-12.8. The specified IG vision unit configuration uses a 5mm exterior Vitro Solarban 70 Low-E #2 lite, 1/2" air-filled cavity, and 6mm interior Vitro Clear lite, delivering a winter U-factor of 0.29 Btu/hft²F (1.62 W/m²K), 65% visible light transmittance, 0.27 solar heat gain coefficient, and 2.37 light-to-solar gain ratio.