Installing Vinyl Siding Window Trim

Install undersill trim the width of the window flush to the casing.

Installing vinyl siding window trim.

Along the tops install j channel trim with horizontal siding and base trim with vertical siding. Furring may be necessary to maintain proper pitch of the siding. Below the cut edge at 6 in. When you get to a window you will need to cut sections from the panels directly above and below it to fit.

Fitting siding over windows. Cutting and installing the siding 1 place the piece of siding to be installed under the window along the bottom edge and hold it where it will be located horizontally along the wall. Lineal trim can help unify and accent a home s exterior adding a design element that can be both subtle and distinctive. Instruction on how to install exterior 2x4 trim around a new or old window.

To prevent the relatively thin panels from buckling observe these fitting and nailing rules. For even more personality and charm add a decorative corner or crown molding above the door or window. 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. Gap at all ends.

The siding slides behind vinyl siding trim pieces that hide the gap and the cut end. Before installing door and window trim first caulk around the openings to create a moisture and air proof seal. Install siding around windows. Install the tops first then the sides and then the bottoms of the window surrounds.

Certainteed window and door trim puts out the welcome mat creating a first impression with lasting effect. Vinyl siding installation is designed to hang loosely on the sheathing so that it can expand and contract with temperature changes.