Install the top piece of molding snapping it over the vertical side moldings.
How to install vinyl siding window trim.
Slide each siding piece into the j channel and secure to house with roofing nails.
Exterior window trim on vinyl siding if your home has vinyl siding and you d like to add vinyl window trim you will first need to remove the existing siding and j channel from around the windows.
Install the tops first then the sides and then the bottoms of the window surrounds.
Before installing door and window trim first caulk around the openings to create a moisture and air proof seal.
Install door window trim.
Available in a variety of colors and styles vinyl siding is widely used and favored by many contractors and do it yourselfers for its durability.
Installing vinyl siding around windows.
Cut and install new j channel along the sides and top of the window.
Along the tops install j channel trim with horizontal siding and base trim with vertical siding.