WINDOWS • CURTAIN WALLS • ENTRANCES • STOREFRONTS HX45 HIGH PERFORMANCE THERMAL DOUBLE HUNG The HX45 is loaded with options to fit many applications while providing an industry leading U-Factor. The energy efficient design provides a substantial improvement in the interior frame temperatures as well. Both block and tackle and class 5 balances are available along with the quality auto locking and sweep lock hardware that has been a part of other EFCO products for many years. Designed to meet the increasing demand for thermally superior products needed in schools, government buildings and green construction, EFCO’s HX45 double hung window sets a new standard. The outstanding U-Factor provides demonstrable energy savings when used in conjunction with building envelope performance software. Features 4/2" Frame depth Double Hung configuration 12 lb water AW70 standard rating AW110 optional rating Fully strutted- 2 color availability Standard sash • 1/2" glass pocket • dual glaze option • blinds available Snap in grid sash • 1" glass pocket U-Factor with EFCO stock glass .34 Fixed mate, series FX45 • U-Factor = .31 © Copyright 2015 EFCO Corporation 05/15 1000 COUNTY RD • MONETT, MO 65708 • 800.221.4169 • efcocorp.com

Series HX45 Double Hung • Series FX45 Fixed 4 1/2" High Performance Thermal, Architectural Grade Windows HX45 Interior Frame Temp. Comparisons Interior Temp = 70° F Exterior Temp = 0° F Note: All performance value data is based on laboratory testing per AAMA I0I/I.S.2IA440 for Air/Water/Structural, ASTM E90 and or E4J3 for Acoustical, AAMA 507 and or NFRC 100/200/500 for UFactors and AAMA J503 for Condensation Resistance Factor (CRF). Printed values are subject to change pending the frequency of recertification testing. Field results will vary depending on she, the field test method, the addition...

WINDOWS • CURTAIN WALLS • ENTRANCES • STOREFRONTS Series HX45 Double Hung • Series FX45 Fixed4 1/2" High Performance Thermal, Architectural Grade Windows Illustration 2 Main Frame Construction The frames have a depth of 4 1/2" and are constructed of 6063-T6 aluminum alloy. The nominal material wall thickness for the frame is .080", and the sill has a minimum wall thickness of .094". Corners are of screw spline construction and sealed. See Illustration 1. Sash Frame Construction The sash consists of aluminum members with .080" nominal material wall thickness of 6063-T6 alloy. Corners are of screw...