If it s narrower it might all be blind nailed.
How to remove siding from the bottom.
Pull the piece of vinyl siding downward to disengage it from the course below it.
Cut the nails at the bottom of the row above the boards you re replacing.
You will need to remove the bottom course of siding with your removal tool.
Use a zip tool to disconnect two pieces of siding.
Use a small hacksaw with a sharp blade.
You don t mention what size of siding you have.
Even if the roof has been properly flashed against the sidewall this one hasn t water can still run down the side of the house and behind the siding causing rot.
Look for a horizontal seam between two courses of vinyl siding.
Reveal the nails anchoring a piece to the wall by sticking the zip tool under the bottom of the piece above it.
Insert the siding removal tool where the panels overlap and pull down and out.
Work from the bottom up so that the piece does not.
The solution to rotting sidewalls is a small piece of bent metal called a kickout flashing at roofing suppliers which simply directs all that water away from the wall.
Start by lifting an overlapped piece of vinyl on the top row.
To remove a piece at your eye level slide the zip tool under the piece above that one.
I ve got a recip saw and a multitool so between those two i should be able to get the old siding down without having to use the pry bar too much.
If it is 12 masonite it is going to be nailed near the bottom of the siding anyway.
To get at the nails carefully wedge out the bottom of the siding 1 8 to 3 16 in.
You will actually start by pulling the bottom of the second course out of the top of the first course.
The nails for the first course will be accessible now.
Zip tools disconnect a higher piece from a lower piece.
Hold the siding piece that is not being removed gently with the back of your arm while removing nails with the pronged end of a cat s paw bar.
Remove the nails and the piece of siding.
Cutting the nails will let you remove rotted boards without damaging those your e saving.