Mix a solution of 1 2 cup trisodium phosphate and 1 gallon of water.
How to repair broken hardiplank siding.
Brush away any chipped paint small loose pieces of siding or anything else that mars the plane of the siding.
Cut the fiber cement siding to length wear approved dust protection.
Remove any nails from the top piece of good siding.
The best way to repair this is by first pre drilling a hole with the appropriate size masonry drill bit.
Repair or patching fiber cement board siding dents chips cracks and other minor surface damage in james hardie siding and trim products can be filled with cementitious patching compound.
Step 1 put on a pair of rubber gloves.
Step 2 sand over the damaged area lightly but thoroughly with a medium grit sandpaper to smooth any jagged edges and create an easy grip surface for the patch product.
Wash down the exterior surfaces every 6 to 12 months with a garden hose to remove dirt and debris gently clean your siding with a soft brush or wet soft cloth in a side to side motion in the direction of the plank siding.
Use a plastic putty knife to apply the patching material to the damaged area filling in the area and shaping the patch to match the original contours of the siding.
Here s another typical handyandy exterior project.
Refer to manufacturer recommendations for products that are compatible with fiber cement.
Dip a soft bristle brush into the solution then scrub the cracked area of fiber cement siding to remove dirt and debris.
This ensures the siding is securely anchored to the home and will not be damaged further.
I used a ryobi jobplus to score ours.
Use a pry bar to remove the damaged siding.
Allow the patch to thoroughly dry and apply another thin layer of patching material if the first layer shrank during the drying process.
If there s a chance to use a power tool i might as well once it s cut you ll simply begin prying away the broken piece.
Blind nail the fiber cement siding in place starting with the bottom piece.