Windows • Curtain Walls • Entrances • Storefronts Series 550-I, 550G Thermal 2 7⁄16" Heavy Commercial Projected Flush-Face Window Project-In • Project-Out • Casement In • Casement Out • Fixed Series 550-I and 550G retain AAMA Architectural Grade rating to meet the most demanding specifications. Designed for educational, office or healthcare facilities, the 550-I and 550G window system are an attractive product for a wide range of applications. Multiple glazing options provide flexibility to meet specific design requirements. Thermal barriers in the frame and sash improve thermal performance enhancing your energy saving potential. Offered with a complete line of sub frames, mullions and architectural sills the 550-I and 550G windows provide the complete solution for your fenestration needs. E-StrutTM thermal isolator Improves U-Factor performance Dual finish capability Completely eliminates dry shrinkage Vertical or horizontal stacking members Increases configuration options Dual glazing with optional integral blinds Improved energy savings and interior light or privacy control with low maintenance Pressure equalization Superior water resistance Angle reinforced vent corners Improves sash/vent rigidity Wide variety of locking and operating hardware available Permits hardware options to address specific requirements 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 Screen frames of extruded aluminum alloy are available Stronger, more durable screens 550G available with snap in grid Removable for glass cleaning & reglazing © Copyright 2012 EFCO Corporation 11/12 1000 COUNTY RD • MONETT, MO 65708 • 800.221.4169 • efcocorp.com

Series 550-I, 550G Thermal 2 7⁄16" Heavy Commercial Projected Flush-Face 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. S-550-I Hardware Chart Butt Hinges Project-In Project-Out Casement Inswing With 4-Bar Arms Casement Outswing With 4-Bar Arms Casement Inswing With Butt Hinges Casement Outswing With Butt Hinges S-550-I Glazing Chart Monolithic & Insulated Glass Exterior Lite Dual Glazing Interior Lite Friction Adjuster...

Windows • Curtain Walls • Entrances • Storefronts Series 550-I, 550G Thermal 2 7⁄16" Heavy Commercial Projected Flush-Face Window Main Frame Construction The frame is constructed from .125" nominal material wall thickness aluminum of 6063-T6 alloy with a depth of 2 7/16". 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,...