Installing Vinyl J Channel Around Windows

The vinyl siding trim pieces should slide back and forth slightly.

Installing vinyl j channel around windows.

Don t drive them tight. Cut a tab in the bottom of the side j channels and fold under. Cut and install bottom j flush with the sides of the window casing. Square corner j channel installation.

Next measure and cut the siding to fit the measurements of your soffit and push each panel into the j channel. Position the j channel under the window. Nail loosely enough so that the j molding slides. You work from the bottom up with this step as well overlapping top to bottom.

Cut and position an undersill trim if necessary see when to use undersill trim. Install the j channel vinyl siding around all four sides of a window or three sides of a door. You can use roofing nails that are made of galvanized aluminum or stainless steel with high user ratings and good resistance to corrosion. The next step in waterproofing your window is to install 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. Install side j channels flush with the lower face of the bottom j channel and with the top of the window casing. Cut and install top j flush with the outer face of the side j s. Drive roofing nails every 8 to 10 in.

Place the side j channel and mark it then mark the bottom j channel. This gives it a clean professional look. 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. Cut and bend drain tab.

Nail it to the wall but remember not to nail it tightly. Install the j molding along the bottom edge of the window. This goes all around the window and you ll need new strips. Mitering corners of the j channel.

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. For the window first position the j channel against the window casing. If necessary bend the siding to fit into place. Install j channel under the window.