Installing Vinyl Siding Under Windows

Measure and cut panel to fit.

Installing vinyl siding under windows.

This will leave a panel with an intact nail hem and proper exposure. Measure and cut panel in the same manner detailed in step 14 but cut lower portion instead of top. Gap at all ends. Install siding at the top of a window or door in a similar fashion but this time set the siding on the window channel and use the window trim to mark the cut.

Longer siding panels don t stretch as readily as smaller ones so they re not as easy to adjust if they get out of whack. Be sure to check both sides for proper fit. Fitting siding over windows. 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.

To get the depth of the notch measure the distance from the locking tab on the siding below to the undersill trim. A mark the cuts for siding under the window. When installing vinyl siding on each side of a window or door start on the side that needs the longer panels. Undersill trim for instance is installed under windowsills or other horizontal projections and grasps the top edge of the siding panel below it see installing window trim.

B cut the siding to fit under windows. Vinyl siding installation is designed to hang loosely on the sheathing so that it can expand and contract with temperature changes. 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. To install the siding if partial panels are required mark the line to cut by measuring from the edge of the lock of the panel and cut the panel to the proper width.

Vinyl siding depends on a few special trim pieces that either hold everything together or hide the edges and ends of the panels. Install siding around windows. To prevent the relatively thin panels from buckling observe these fitting and nailing rules. Place the siding that has to be notched under the window.

When you get to a window you will need to cut sections from the panels directly above and below it to fit. Finishing top row of siding under eaves. The siding slides behind vinyl siding trim pieces that hide the gap and the cut end. Drop siding panel into j channel around top of window and install.