Windows • Curtain Walls • Entrances • Storefronts Series 3500 Thermal • Series 3900 Fixed Thermal 3 1⁄4" Architectural Grade Horizontal Sliding Window Series 3500 retains an AAMA Architectural Grade rating to meet the most demanding specifications. Designed for high-rise residential, condos, educational or healthcare facilities, the 3500 window system is an attractive product for a wide range of applications. Multiple glazing options provide flexibility to meet specific design requirements. A thermal barrier in the frame and sash improves thermal performance enhancing energy saving potential. Offered with a complete line of sub frames, mullions and architectural sills, the 3500 window provides the complete solution for your fenestration needs. S3500 only - Extrusions are thermally improved Enhanced thermal performance Cam sash design and continuous interlock meeting rails Yields superior air, water, and structural performance Dual glazing Improved energy savings Sash glides on tandem steel ball bearing rollers over a raised sill track The raised sill track minimizes the effect of dirt and debris build-up on the sill Variety of locking and operating hardware Allows flexibility in design Three sill heights available Water resistance performance customized to project requirements Accommodates glazing from 1⁄8" to 1" depth Expands design and energy saving options Trim-All™ panning, frame extenders, interior trim and stools available Allows old perimeter frame to remain in place Debris removal is minimized Screen frames are extruded aluminum alloy are available Stronger, more durable screens Accessory line of subframes, mullions, and architectural sills Allows custom designs with standard product Anodized and painted finishes available Multiple options to answer economic and aesthetic concerns © Copyright 2013 EFCO Corporation 4/13 1000 COUNTY RD • MONETT, MO 65708 • 800.221.4169 • efcocorp.com

Series 3500 Thermal • Series 3900 Fixed Thermal 3 1⁄4" Architectural Grade Horizontal Sliding Window Concealed Plunger Lock Sweep Lock Horizontal Sliding Polycarbonate Horizontal Sliding S-3500 1/8" 3/16" 1/4" & S-3550 Glazing Chart Monolithic & Insulated Glass Exterior Lite Dual Glazing Interior Lite * Based on NFRC 100 **NFRC Gateway size Pole Ring Sweep Lock Auto Jamb Lock 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. Access Controlled Sweep Handle O Pole Socket Zinc...

Windows • Curtain Walls • Entrances • Storefronts Series 3500 Thermal • Series 3900 Fixed Thermal 3 1⁄4" Architectural Grade Horizontal Sliding Window Frame Construction The frames have a depth of 3 1/4" and are constructed of 6063-T6 aluminum alloy. The nominal material wall thickness for the frame is .062", and the sill has a minimum wall thickness of .094". Three sill heights allow the designer to “customize” water performance to suit the needs of geographical wind load. Corners are of screw spline construction and sealed. See Illustration 1. Sash Frame Construction The sash consists of aluminum...