The original installer might have accidentally installed a nail too close to the edge of the siding causing a crack.
How to nail loose hardie board siding.
Placing the new piece of hardie board is just as simple as the demo.
If the fc lap siding boards are nailed very tightly you may be able to reach up under the board you are going to remove using a flat bar to pry gently at the top of the board beneath thus the board to be removed and the lower edge of the board course above it prying thus between the back of the lower board and the wall sheathing just enough to open the boards enough to go back to the hacksaw.
Remove any nails that still might be underneath the bottom portion of the piece above the one you removed.
Pick out stainless steel or hot dipped galvanized nails size 6d 1 1 2 inch long siding nails and 2 inch long siding nails in the quantity you need for your project.
And it may take time to see it appear so you won t know right away jamie reads.
Nails are driven through the sheathing into the studs.
Placing your hardie board.
How to fix a loose hardiplank board step 1.
1 blind nailing measurements keep nails 3 8 in.
From the top of the board.
Just the nails that will prevent the new board from sliding back into place you can either completely remove the nails or clip them off.
You can easily fix it by cleaning it and then using caulk to patch the gap.
Any lower and you might see a few nail heads poking through the bottom of the next board any higher and your siding is likely to be loose and could even rattle in the wind.
If the hardiplank is being installed on a building in a humid climate or near the ocean or any large body of water the stainless steel nails are the first choice.
2 3 water resistive barrier finish nail blind nail 3 4 in 1 in.
From ends of boards.
Hardie plank siding has a nail line across the top of the board that is 1 down from the top and nails are supposed to fall between and 1 from the top of the board to give the best hold.
Hardie board siding usually cracks due to poor installation.