Cutting Siding For Window Trim

Below 60 degrees leave a 1 8 in.

Cutting siding for window trim.

Lock the notched. Check the fit then cut. If you re installing trim in temps higher than 80 degrees f cut pieces to fit tightly. After installation cover the gap with acrylic or urethane caulk.

Cutting and installing the siding 1. Using a circular saw set to the right depth just a hair shallower than our siding to ensure we didn t break through the house wrap or wall and a brace to ensure a straight cut we cut away the extra siding from around our window frame. Do not miter corner joints of band boards fascia corner trim etc. The windows would be more work imo.

Use a carpenter s square to draw the line straight. Place the piece of siding to be installed under the window along the bottom edge and hold it where it will be located. Cut a 45 degree angle on one end of the trim and hold. Where edges of trim meet siding material windows doors or other finished openings leave a minimum 3 16 inch 5 mm space to allow for proper sealing.

Measure the distance from the inside top of the j channel to the locking tab of the course below and subtract 1 4. Provide increased spacing along the trim if specified by the siding application instructions. When installing window molding start at the top. Instruction on how to install exterior 2x4 trim around a new or old window.

If it s between 60 and 80 degrees leave a 1 16 in. If you re cutting dark vinyl siding use chalk or light colored tape to mark the line you want to cut. Place the top piece and hold the trim 3 16 in. How to install window trim mark the length.

Away from the jamb at both ends and along the base. Make sure that a drip cap is installed first over the window before going for the hardie siding. You will see the trims lay nice and flat. Get the spacing right.

Touch up the divided hardie trim boards before trimming them to your window. Face nail trims using 2 inch 16 gauge finish nails after every 16 inches apart. It s normally a cost cutting measure when done at the corners they don t have to be careful or precise about the corner cut etc. See diagram 2e 4a.

Make the line as dark as possible so it s visible when you re cutting it. Mark the line you want to cut on the siding with a pencil.