Cutting Siding For Window Trim

Place the piece of siding to be installed under the window along the bottom edge and hold it where it will be located.

Cutting siding for window trim.

Measure the distance from the inside top of the j channel to the locking tab of the course below and subtract 1 4. After installation cover the gap with acrylic or urethane caulk. Mark the line you want to cut on the siding with a pencil. If you re installing trim in temps higher than 80 degrees f cut pieces to fit tightly.

Exterior trim over siding i have never seen it on window door trim but seen plenty on door window trim. Cut a 45 degree angle on one end of the trim and hold. If it s between 60 and 80 degrees leave a 1 16 in. Check the fit then cut.

Make sure that a drip cap is installed first over the window before going for the hardie siding. Cutting and installing the siding 1. How to install window trim mark the length. When installing window molding start at the top.

Use a carpenter s square to draw the line straight. Provide increased spacing along the trim if specified by the siding application instructions. See diagram 2e 4a. Below 60 degrees leave a 1 8 in.

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. Get the spacing right. Cut away the extra siding. Place the top piece and hold the trim 3 16 in.

Gap for every 18 ft. 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. The windows would be more work imo. You will see the trims lay nice and flat.

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. If you re cutting dark vinyl siding use chalk or light colored tape to mark the line you want to cut. Lock the notched.

Away from the jamb at both ends and along the base. Make the line as dark as possible so it s visible when you re cutting it.