Cedar wood is widely used for exterior applications such as decking, siding and trim, because it is nearly impervious to moisture and holds its natural beauty despite exposure to the elements. Adding simple to a new double-hung window completes the installation. The project can be easily accomplished, following a standard method used by home builders that ensures an attractive, weather-tight frame.
Instructions
1. Set the square side of a combination square to 1/4 inch, then place the square against the inside face of the window jamb. Make a mark at this measurement at the top and bottom of both sides of the window, on the outside face of the jamb.
2. Repeat the process to mark the face of the window jamb at the approximate midpoint on both sides and on the top horizontal frame section. These marks will be the 1/4-inch backset for the cedar trim boards.
3. Set a bevel square to the sill's slope angle. Place the square's handle vertically against the outside surface of the side jamb and press the blade down onto the sill. Tighten the blade screw to lock the angle. Use a protractor to determine the angle's measurement.
4. Set the table of a circular saw to the angle determined in Step 3. Cut the ends of two lengths of cedar trim material with this angle, making certain each length is slightly longer than the window's side height dimension.
5. Measure the height of the left side of the window, from the top of the sill where it meets the jamb, to the bottom edge of the top horizontal jamb. Cut one of the cedar trim boards to this measurement plus 1/4 inch. Make certain the board length is measured from the short point of the end angle.
6. Position the trim board cut in Step 5 flat against the wall. Align the inside vertical edge with the 1/4-inch backset lines. Attach the trim to the window and exterior wall surface by hammering in 8d galvanized nails spaced approximately 8 inches apart.
7. Repeat Steps 5 and 6 for the right-side vertical cedar trim board.
8. Measure the horizontal dimension across the top of the window, from the outside of both vertical cedar trim boards. Cut two pieces of cedar trim material to this length, making a square cut on both ends.
9. Place one of the cedar trim boards cut in Step 8 flat against the top of the window and resting on the vertical side cedar trim boards. Align both ends with the outside edges. Attach the board to the window jamb and wall surface with 8d galvanized nails spaced approximately 8 inches apart.
10. Position the second cedar trim board cut in Step 8 horizontally beneath and tight against the window sill. Align the outside vertical edges of the side trim boards. Attach this final piece to the wall surface with 8d galvanized nails spaced approximately 8 inches apart.
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