Measure the width of the piece you need to cut by holding the length of siding against the window and marking the edge points on the panel with a pencil.
How to cut vinyl siding trim around window.
Instruction on how to install exterior 2x4 trim around a new or old window.
Alternatively vinyl siding can also be trimmed by scoring them with a utility knife at the point at which you wish them to be trimmed and then snapping the piece off along the scoreline.
This video shows how to trim around half round and quarter round windows and accents.
When you mark each side add a inch to the width to allow for expansion.
Cutting and installing the molding.
Use tin snips to cut a length of j molding 2 inches longer than the width of the window.
Cut a 1 inch notch out.
Place the siding that has to be notched under the window.
To get the depth of the notch measure the distance from the locking tab on the siding below to the undersill trim.
Leave on extra 1 4 inch 0 6 cm of clearance on either side of these marks.
Each piece that is adjacent to the window should slide neatly into the j channel that you have installed.
Ensure that the flashing along the bottom of the window overlaps the nailing hem of.
A well done trim installation can set up the rest of the project for success and dramatically improve the overall appearance of the home.
Trimming out windows and doors is one of the most important steps when installing new siding on a home.
Remember to leave about a inch for expansion.
A mark the cuts for siding under the window.
B cut the siding to fit under windows.
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