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C. Always handle windows properly. Always pick them up by both side jambs using both hands. <br /> Never pick up and handle windows by the header only, sill only, or by one side jamb only. This <br /> can damage the windows and possibly rupture the glazing seal and /or joint caulking, thus <br /> resulting in a possible leak. <br /> D. Carefully insert the window into the opening. Center the window in the rough opening with the <br /> sill of the window resting on the sill of the rough opening. <br /> E. Drive the first fastener at approximately the center of the vertical frame jamb. Drive the second <br /> fastener on the opposite jamb at the approximate center. Drive the third fastener at the center of <br /> the sill member. (Note: When installing windows check the window sill for straightness. If <br /> the window sill is crowned, apply light pressure at the center of window sill until it is level. <br /> While holding the sill level, drive the third fastener into the center of the sill.) Drive the <br /> fourth fastener at the center of the head. Run fasteners, from one of the above fasteners, to the <br /> end of each frame member). Repeat this step until all fasteners have been inserted from the <br /> center of the vertical frame jamb outward to both ends of each member. Finish installing the <br /> fasteners from the center of the Frame Head and Sill outward to the ends of each member. See <br /> attached drawing for visual guide to fastener placement of assorted window types. <br /> Note: All fasteners should be driven straight into the window frame. See section III for <br /> fastener information. <br /> This sequence of fastener installation applies to both vertical and horizontal sliding windows, <br /> flush mount and recessed fin mount, for both metal and vinyl windows. A drawing is attached <br /> for visual reference. <br /> After the initial fasteners are placed, it is important that the installer does not run the remainder <br /> of the fasteners in a continuous clockwise (or counter clockwise) fashion around the window. <br /> F. Avoid damage to the seal between the glass and the window glazing member. Power drivers <br /> should be adjusted so as not to cause excessive dimpling of the window flanges. Careless <br /> mounting procedures could negate window certification. <br /> G. If the exposed surfaces of the rough inside opening are to be trimmed out with pre- finished <br /> paneling, it must be done in such a manner so as not to distort or twist the window frame <br /> members and make the operating sash tight or inoperable. If interior trim is installed prior to <br /> window installation insure that enough room is left to allow the window to fully seat against the <br /> exterior wall surface. Do not obstruct tilting sash operation or locking mechanisms with inside <br /> trim, wood molding, etc. <br /> H. Windows should be checked after installation to make sure that all moving panels, mechanisms, <br /> latches, and other hardware function properly. Any shipping clips must be removed prior to <br /> operation of the window. All windows should be checked for out -of- square or bowing of frame <br /> members. If any of the above problems are present, window should be removed and re- installed <br /> properly. Double hung windows require extra care during installation. Double hung <br /> windows do not have fixed glass, which offers additional frame stability. <br /> I. The window's exterior mounting flanges should be checked after the installation to assure an all - <br /> weather seal. It is recommended to seal the outside top of window (full width) with a good quality <br /> sealant for additional insurance. <br /> Page 2 of 4 <br />