The new panel you cut the top lock off scribe just under the lock and snap it off trim height if need to fit.
How to remove steel siding.
Slide your zip tool back and forth parallel to the section of steel siding that you have chosen.
Both metal siding types often were manufactured with a thin lining of foam designed to increase the insulation value of the siding.
Step 2 removing the nails.
You cut the damaged piece out a couple of inches below the top lock of that panel then nail that part down.
Remove the bottom portion of the damaged section.
Insert your zip tool into a gap between the section of siding you select and the one covering the edge of it.
Slide the separating tool underneath the bottom edge of the siding piece that is directly above the piece.
If you do start with those.
Chemicals you might use on wood or vinyl siding can cause damage to steel.
Isolate the piece of siding you need to remove and find its outermost edge on either side.
Metal siding section 1 overview.
Aluminum and steel siding became popular in the 1950s and 60s as a cost effective choice to cover deteriorated wood siding.
Running a finger along the siding will come away with a powdery film that needs scrubbed away.
With a heavy duty puddy knife open up a little under the top lock and panel that you left.
Put those away and simply make up a solution of 1 3 cup liquid laundry detergent and 6 gallons of water to use with the pressure washer.
Removing oxidation on siding requires a good cleaning.