Windows • Curtain Walls • Entrances • Storefronts Series 811-I Thermal 3 1⁄2" Impact/Blast Grade Heavy Commercial Projected Window Casement Out with Butt Hinges • Fixed • Project-Out Designed for educational, office and healthcare facilities, the 811-I window systems features the E-Strut® thermal isolator as the thermal barrier. This enhances the thermal performance and allows dual finish. The 811-I has passed TAS and ASTM large missile, level D testing protocol for monolithic and insulating glass. Florida Product Approvals 12912.7, 12912.8, 14628.4, 14831.8 and 14831.9. E-StrutTM thermal isolator Improves U-Factor performance Dual finish capability Completely eliminates dry shrinkage Angle reinforced vent corners Improves sash/vent rigidity Pressure equalization Superior water resistance Anodized or 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

Windows • Curtain Walls • Entrances • Storefronts Series 811-I Thermal 3 1⁄2" Impact/Blast Grade 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 1/2". An equal leg frame is standard. Corners are of screw spline construction and back sealed with a small-joint seam sealer. Pivot frame corners are mitered, angle reinforced, crimped, cold epoxy welded, and back sealed with a smalljoint seam sealer. See Illustration 1. Vent Frame Construction The 3 1/2" deep vent consists of tubular...