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2 SEnlNG AND FASTENING THE WINDOW A. Install sill spacer. Place a continuous 1/4" thick spacer at the bottom of the window opening. The spacer should be cut 1/2" shorter than the width of the rough opening and be centered between the sides of the rough opening. DO NOT shim between the bottom of the window and the bottom of the rough opening. Note: 10 determine the width of the spacer, measure the distance from the back of the J1n to the interior frame edge and cut the spacer to this dlmension. Place the <<We of the spacer Bush with the exterior of the buDding. Improper placement of shJms may result in bowing the bottom of the window. B. Remove plastic wrap and cardboard packaging from window. DO NOT open the window until it is fully fastened. Inspect the unit for any crack or penetration in the frame. DO NOT install damaged units. 2 OR MORE PEOPLE WILL BE REQUIRED FOR THE FOLLOWING STEPS. C. Insert the window from the exterior of the building. Place the bottom of the window on the spacer at the bottom of the opening, then tilt the top into position. Center the window between the sides of the opening to allow clearance for shimming, and insert one roofing nail in the first hole from the corner on each end of the top nailing fin. These are used to hold the window in place while shimming it plumb and square. Note: DO NOT drive the naJl all the way in. D. Plumb and square window. Place shims 1" from the bottom and top of the window between the window and the sides of the opening. Adjust the shims as required to plumb and square the window in the opening. Casement and Fixed: If the frame height exceeds 4 7" , place shims at the midpoint of the window sides. Double and Single-hung: Be sure to shim at the checkrail. If the frame height exceeds 47", place additional shims midway between the checkrail shims and both the top and bottom shims. Interior View E. Fasten the window to opening by driving 2" galvanized roofing nails into every other pre-punched hole in the nailing fin. Drive nails until the head contacts the fin, however do not sink the head. This allows for movement of building materials. DP 50: Insert #8 x 2" pan head stainless steel wood screws with flat washers into every pre-punched hole in the nailing fm. Drive screws until the head/washer contacts the fin, however do not sink the washer. This allows for movement of building material. E Check window operation (vent units only). Open and close the window a few times to check for proper operation. Close and lock the window. I Double and Single-hung: Make sure the window will tilt correctly. : Note: If there are any problems with the operation of the window, recheck shlm ~_ locations and acflust for plumb and square. -- -- -- -- -- --