If you re replacing more than one board in a run simply hammer a nail into the top corner to support it and then move half way down the board.
How to replace damaged hardie siding.
You can use a soft cloth or a brush to clean.
Remove any nails from the top piece of good siding.
This is so they don t prematurely wear areas of your siding.
Brush away any chipped paint small loose pieces of siding or anything else that mars the plane of the siding.
Step 2 pry the piece of siding out toward you gently to let you see the nail or screw patterning of how the planks have been fastened to the under structure.
Sand over the damaged area lightly but thoroughly with a medium grit sandpaper to smooth any jagged edges and create an easy grip surface.
Cut the fiber cement siding to length wear approved dust protection.
Face nail the top.
Blind nail the fiber cement siding in place starting with the bottom piece.
Use a mallet or hammer to gently drive the tip of the bar up behind the siding if necessary.
Then hammer away on the rest of the board.
Proper hardie plank siding maintenance.
Be sure the top one goes through both boards.
Clean dirt and other debris off the outside of your house with a garden hose once or twice a year.
Here is a link to the nailing machine i was using.
To remove and replace damaged siding.
How to patch hardieplank.