Installing Vinyl J Channel Around Windows

Don t drive them tight.

Installing vinyl j channel around windows.

Mitering corners of the j channel. The vinyl siding trim pieces should slide back and forth slightly. Nail it to the wall but remember not to nail it tightly. The next step in waterproofing your window is to install the j channel.

This gives it a clean professional look. J channel pieces should be installed similarly to the f channel across from each other so the soffit fits between the lengths of the j channel. Through the middle of the slots. Place the side j channel and mark it then mark the bottom j channel.

Square corner j channel installation. You work from the bottom up with this step as well overlapping top to bottom. Install side j channels flush with the lower face of the bottom j channel and with the top of the window casing. Cut a tab in the bottom of the side j channels and fold under.

It will look much better if you miter the corners. Position the j channel under the window. For the window first position the j channel against the window casing. Install j channel under the window.

Cut and bend drain tab. Next measure and cut the siding to fit the measurements of your soffit and push each panel into the j channel. 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. Drive roofing nails every 8 to 10 in.

If necessary bend the siding to fit into place. Cut and install top j flush with the outer face of the side j s. You can use roofing nails that are made of galvanized aluminum or stainless steel with high user ratings and good resistance to corrosion. Cut and position an undersill trim if necessary see when to use undersill trim.

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. This goes all around the window and you ll need new strips. Nail loosely enough so that the j molding slides. Cut and install bottom j flush with the sides of the window casing.