How To Install Vinyl Siding Window Trim

Lock the notched siding into place and inspect its fit into the j channel.

How to install vinyl siding window trim.

Fashioning metal window trim with a brake is complicated for a do it yourselfer. Along the tops install j channel trim with horizontal siding and base trim with vertical siding. To expedite installing vinyl siding on your home or for large projects you may want to call a professional vinyl siding company. Draw a line on the wall along the top of each siding course before you pull the nails.

Pry off the vinyl siding and j channel from around the perimeter of the window. Install the tops first then the sides and then the bottoms of the window surrounds. 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. Each piece that is adjacent to the window should slide neatly into the j channel that you have installed.

Remember to leave about a inch for expansion. Slide the zip tool under the butt edge of the siding hook the locking edge and pull down. Use tin snips to trim off the metal flashing covering the exterior windowsill. Install j channels at doors and windows and under roof eaves and rakes.

Lift the unlocked siding to expose the nailing hem of the siding piece below. Then slide the tool horizontally along the lock to release it. Unscrew and remove the storm window from the outside of the window. Cut the trim so it is two channel widths longer than the opening s width.