Installing Vinyl J Channel Around Windows

The next step in waterproofing your window is to install the j channel.

Installing vinyl j channel around windows.

You can use roofing nails that are made of galvanized aluminum or stainless steel with high user ratings and good resistance to corrosion. Mitering corners of the j channel. To install vinyl siding to the soffit and fascia area on your home nail lengths of j channel along the inner edge of the fascia leaving the nail heads out about 1 32 to 1 16 of an inch. Through the middle of the slots.

Cut and bend drain tab. Nail it to the wall but remember not to nail it tightly. Cut a tab in the bottom of the side j channels and fold under. Don t drive them tight.

The vinyl siding trim pieces should slide back and forth slightly. If necessary bend the siding to fit into place. Drive roofing nails every 8 to 10 in. Do not forget to extend the side j channel above the top of the window frame make it at least 1 inch above the top of the window.

You work from the bottom up with this step as well overlapping top to bottom. Position the j channel under the window. Cut and position an undersill trim if necessary see when to use undersill trim. Hammer in roofing nails approximately every 8 inches at the middle of the nailing slots.

Place the side j channel and mark it then mark the bottom j channel. Next measure and cut the siding to fit the measurements of your soffit and push each panel into the j channel. This goes all around the window and you ll need new strips. It will look much better if you miter the corners.

Cut and install top j flush with the outer face of the side j s. Nail loosely enough so that the j molding slides. This gives it a clean professional look. Install the j molding along the bottom edge of the window.

For the window first position the j channel against the window casing. Square corner j channel installation. Install j channel under the window. Install the j channel vinyl siding around all four sides of a window or three sides of a door.