How To Repair Cracked Hardie Board Siding

Remove any nails from the top piece of good siding.

How to repair cracked hardie board siding. Blind nail the fiber cement siding in place starting with the bottom piece. Sand over the damaged area lightly but thoroughly with a medium grit sandpaper to smooth any jagged edges and. 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. How to patch hardieplank step 1.

Remove any nails that still might be underneath the bottom portion of the piece above the one you removed. Mix the latex modified cementitious patching compound in a small bucket according to the manufacturer s. Scoop up some of the. Placing your hardie board.

Mix a solution of 1 2 cup trisodium phosphate and 1 gallon of water. The original installer might have accidentally installed a nail too close to the edge of the siding causing a crack. Insert the tip of the caulking tube into the crack in the hardiplank. Step 5 draw the gun smoothly along the siding as it fills the crack.

Holding the gun at a 45 degree angle squeeze the trigger to dispense the silicone. Hardie board siding usually cracks due to poor installation. Brush away any chipped paint small loose pieces of siding or anything else that mars the plane of the siding. Placing the new piece of hardie board is just as simple as the demo.

How to repair cracks in fiber cement siding step 1. Cut the fiber cement siding to length wear approved dust protection. Apply the patch product to. Put on a pair of rubber gloves.