Step 1 install j channels on both sides of the overhang.
How to install vinyl siding with no overhang.
That will give you a watertight cover and prevent water from running behind the siding.
Measure and cut panel to fit.
Slide the zip tool under the butt edge of the siding hook the locking edge and pull down.
Some manufacturers of vinyl siding do not recommend the use of drop in backers with certain vinyl siding configurations.
Draw a line on the wall along the top of each siding course before you pull the nails.
Be sure to check both sides for proper fit.
Divide the length of each wall by 8 inches the width of a piece of siding.
Lift the unlocked siding to expose the nailing hem of the siding piece below.
Then slide the tool horizontally along the lock to release it.
Use the same tools you would have used for the vinyl installation on the side of the house.
The process for installing the vinyl siding on the underside of the eaves and overhangs of the roof where it meets the house is straightforward.
This works fine most of the time but always add a few blobs of caulking inside the bottom lip of the top course for extra security.
Measure and cut panel in the same manner detailed in step 14 but cut lower portion instead of top.
If the result is a whole number you re in.
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.
Finishing top row of siding under eaves.
Install siding at the top of a window or door in a similar fashion but this time set the siding on the window channel and use the window trim to mark the cut.
Vinyl siding must never be applied directly to studs without sheathing.
If you cannot do that and you choose to do it the first persons way make sure you put a good solid bead of caulk behind the j molding.
After you put the siding on put a new drip edge on.
Slide the new drip edge under the shingles as far as you can.
The most common approach here is to install sill trim at the soffits rip down the top course of siding and crimp the siding so the sill trim holds it in place.
Drop siding panel into j channel around top of window and install.