This gives it a clean professional look.
Installing vinyl j channel around windows.
Install the j channel vinyl siding around all four sides of a window or three sides of a door.
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 position an undersill trim if necessary see when to use undersill trim.
It will look much better if you miter the corners.
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.
Install the j molding along the bottom edge of the window.
Mitering corners of the j channel.
The next step in waterproofing your window is to install 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.
Cut and bend drain tab.
Install j channel under the window.
Next measure and cut the siding to fit the measurements of your soffit and push each panel into the j channel.
Install side j channels flush with the lower face of the bottom j channel and with the top of the window casing.
Don t drive them tight.
Cut and install top j flush with the outer face of the side j s.
For the window first position the j channel against the window casing.
Through the middle of the slots.
This goes all around the window and you ll need new strips.
Position the j channel under the window.
Cut a tab in the bottom of the side j channels and fold under.
You work from the bottom up with this step as well overlapping top to bottom.
Drive roofing nails every 8 to 10 in.
Place the side j channel and mark it then mark the bottom 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.
If necessary bend the siding to fit into place.
Cut and install bottom j flush with the sides of the window casing.
Nail loosely enough so that the j molding slides.