Typical Vinyl Window Installation Instruction

1. Measurement: Replacement window-Assure that the rough opening is at least 1/4" on the width, and 1/2" on the height larger than the overall exact size of the window. New construction window-the rough opening is at least ½" larger than the overall exact size of window on the both of width and height.
2. Prepare The Opening: (For replacement window): Leave the original wood frame. Clean the opening of any debris. Remove pulleys, jamb liners, weather-stripping, any old screen hook eyes, other protruding screws or fasteners. (For New Construction): Install 6" asphalted building paper around edge of window opening.
3. Install Window Into Opening: For replacement window, place the new window from the inside of the house into the caulked opening tightly against the stool, and use shimming devices to block the window into the opening. For new construction or 1/4 for new window, place the window into opening from outside tight against nailing fin.
4. Set The Shims: A)Under the sill at each corner; under each mullion for large 1/4" windows and at the center for horizontal sliders. B) On the locations of each installation screw at the bottom and the top of the side jamb.
5. Adjustment: Adjust the shims and side jamb adjusters so that the window is straight, level and plumb square. Make sure the difference between two diagonal lines is less 1/4" , or use sash(es) to visually check the square.
6. Securing: Use the installation screws to fasten the replacement window (or fasten new construction window securely using framing nails & nailing fin ) to the wall structure. On new construction windows with " J" Channel, a pneumatic / electric nail gun must be used, so as not to damage "J" Channel. Install interior stop and casing. Install coil trim as needed on exposed exterior wood. Apply caulking (approx. 1/4" thickness) evenly to where window meets the wall & blindstop. Take care to seal all gaps both inside and outside.