Cutting Siding For Window Trim

Check the fit then cut.
Cutting siding for window trim. Mark the line you want to cut on the siding with a pencil. Cut a 45 degree angle on one end of the trim and hold. Exterior trim over siding i have never seen it on window door trim but seen plenty on door window trim. See diagram 2e 4a.
If you re installing trim in temps higher than 80 degrees f cut pieces to fit tightly. Do not miter corner joints of band boards fascia corner trim etc. The windows would be more work imo. How to install window trim mark the length.
Provide increased spacing along the trim if specified by the siding application instructions. Touch up the divided hardie trim boards before trimming them to your window. After installation cover the gap with acrylic or urethane caulk. If it s between 60 and 80 degrees leave a 1 16 in.
Away from the jamb at both ends and along the base. Below 60 degrees leave a 1 8 in. Cut away the extra siding. 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.
Face nail trims using 2 inch 16 gauge finish nails after every 16 inches apart. Lock the notched. 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. Instruction on how to install exterior 2x4 trim around a new or old window.
Place the piece of siding to be installed under the window along the bottom edge and hold it where it will be located. Make the line as dark as possible so it s visible when you re cutting it. Use a carpenter s square to draw the line straight. Place the top piece and hold the trim 3 16 in.
When installing window molding start at the top. If you re cutting dark vinyl siding use chalk or light colored tape to mark the line you want to cut. Gap for every 18 ft. Cutting and installing the siding 1.
Measure the distance from the inside top of the j channel to the locking tab of the course below and subtract 1 4. 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.