Installing Vinyl Window Casing

Instruction on how to install exterior 2x4 trim around a new or old window.

Installing vinyl window casing.

Along the tops install j channel trim with horizontal siding and base trim with vertical siding. If window casing is installed flush to jamb unintentional gaps can form over time as the wood dries or the house settles. Cut the vertical trim. How to install exterior trim around a window.

Then add 3 1 2 inches to allow for the 45 degree angle. Install the tops first then the sides and then the bottoms of the window surrounds. Double check these retrofit window installation measurements to ensure their accuracy so you don t end up with a window that doesn t fit. The tape or other adhesive is between the glass and the back part of the window frame with the snap bead over the front of the glass securing the glass in place.

In most cases the old frame dimensions will match a standard size vinyl window. Window panes are held in place in vinyl windows through a combination of tape and vinyl snap bead trim. It s a look you ll appreciate every time you cross the threshold into your beautiful home. Mark the two measurements on the trim and set your miter saw to cut a 45 degree angle between the two measurements.

Measuring from the sill to the top of the window along the inside edge. Repeat to cut and install vinyl casing for the opposite side and top of window. Use these retrofit window installation measurements to order the windows from a lumberyard or home center. Before installing door and window trim first caulk around the openings to create a moisture and air proof seal.

Installing the trim slightly away from the jamb edges will help hide discrepancies. From window and door casing to 5 lineals certainteed offers a complete selection of virtually maintenance free vinyl carpentry to define your home. Glue a vinyl end cap onto each end of the vinyl windowsill. Install door window trim.

Cut bottom end of casing with aviation snips then install the casing against the window. Set vinyl casing against vertical side of window and scribe bottom end to match angle of sill.