Windows • Curtain Walls • Entrances • Storefronts Series 3902 Thermal 3 1⁄4" Heavy Commercial Projected Window Project-In • Project-Out • Casement • Fixed Series 3902 retains an AAMA Architectural Grade rating to meet the most demanding specifications. Designed for educational, institutional and high-rise residential, the 3902 window system is an attractive product for a wide range of applications. Multiple glazing options provide flexibility to meet specific design requirements. The window is thermally improved for enhanced energy saving potential. Offered with a complete line of sub frames, mullions and architectural sills, the 3902 window provides the complete solution for your fenestration needs. Thermal barriers in frame and sash consist of a two Improves U-Factor performance and enhances part, high density polyurethane energy savings potential Pressure equalization Superior water resistance Angle reinforced vent corners Improves sash/vent rigidity All vents are dual weather-stripped with dualdurometer Santoprene ® gasket Provides superior air and water resistance Two weep slots per vent through the window frame Moisture weeps to the exterior quickly Wide variety of locking and operating hardware available Permits hardware options to address specific requirements Accommodates glazing units from 3⁄16" to 2" depth Expands design and energy savings options Dual glazing with optional integral blinds Improved energy savings and interior light or privacy control with low maintenance Screen frames of extruded aluminum alloy are available Stronger, more durable screens Accessory line of subframes, mullions, and architectural sills Allows custom designs with standard product Anodized or painted finishes available Multiple options to answer economic and aesthetic concerns © Copyright 2012 EFCO Corporation 11/12 1000 COUNTY RD • MONETT, MO 65708 • 800.221.4169 • efcocorp.com

Series 3902 Thermal 3 1⁄4" Heavy Commercial Projected Window Vent Frame Construction Main Frame Construction Note: All performance data is subject to change based on testing recertification and/or revised AAMA testing protocol. Please contact EFCO for latest performance values. Butt Hinges Friction Adjuster Rotor Operator* Access Controlled Lock Pole Ring Pull** Pole Ring Cam Handle Some size restrictions may apply depending on hardware selected. * Casements requiring roto operators will be furnished with lift locks, providing vents meet minimum width requirements. ** Pole ring pull will be furnished...

Windows • Curtain Walls • Entrances • Storefronts Series 3902 Thermal 3 1⁄4" Heavy Commercial Projected Window Main Frame Construction The frame is constructed from .125" nominal material wall thickness aluminum of 6063-T6 alloy with a depth of 3 1/4". An equal leg frame is standard. Corners are of screw spline construction and back sealed with a small-joint seam sealer. See Illustration 1. Vent Frame Construction The 2 7/16" deep vent consists of tubular aluminum members with .125" nominal material wall thickness of 6063-T6 alloy. Vent corners are mitered, angle reinforced, crimped, cold epoxy...