Start j channeling the window from the bottom make cuts on both ends of the j channel.
Install vinyl siding j channel around window.
Install j channel under the window.
Check the frame of the window and clean anything that is not gonna allow for a j channel to lay flat to the side of the window.
The vinyl siding trim pieces should slide back and forth slightly.
Use corrosion resistant galvanized stainless steel or aluminum roofing type nails with a head diameter of.
Drive roofing nails every 8 to 10 in.
If you have to cut the last row of siding you ll.
Cut and install bottom j flush with the sides of the window casing.
Slide each siding piece into the j channel and secure to house with roofing nails.
Divide the length of each wall by 8 inches the width of a piece of siding.
Place the piece of siding to be installed under the window along the bottom edge and hold it where it will be located.
Square corner j channel installation.
If the result is a whole number you re in.
How to install vinyl siding with a j channel prepare.
Install side j channels flush with the lower face of the bottom j channel and with the top of the window casing.
Place the side j channel and mark it then mark the bottom j channel.
Cut and install new j channel along the sides and top of the window.
Don t drive them tight.
Cutting and installing the siding 1.
Position the j channel under the window.
Install the j channel vinyl siding around all four sides of a window or three sides of a door.
Install the top piece of molding snapping it over the vertical side moldings.
Take the vinyl siding pieces removed earlier and cut them down to fit around the window.
But if the result is not a whole number you will need to cut the final piece of siding lengthwise in order to fill in.
Check the section when to install undersill trim you ll now drive roofing nails into the slots spacing them about 8 to 10 inches apart.
C install j channel underneath hold the j channel beneath the window then cut and position the undersill trim if you are using it.
Cut a tab in the bottom of the side j channels and fold under.
Lock the notched.