Then mix some water with a little trisodium phosphate and hook up your power washer.
How to repair cracked cement siding.
Put on a pair of rubber gloves.
If the cracks are extensive replacement is the better option.
The best way to repair this is by first pre drilling a hole with the appropriate size masonry drill bit.
Then drive a ring shank nail through the siding and preferably into a stud behind it.
Dents chips cracks and other minor surface damage in james hardie siding and trim products can be filled with cementitious patching compound.
Nailing too high or close at an end creates a small crescent shaped crack high on the board next to an end.
Inspect wooden siding for peeling paint cracked boards insect damage and dry rot.
This ensures the siding is securely anchored to the home and will not be damaged further.
Dip a soft bristle brush into the solution then scrub the cracked area of fiber cement siding to remove dirt and debris.
Peeling paint should be removed the area primed and repainted.
Use long horizontal strokes with.
Spray away the rest of the dirt and grime from the siding.
Rinse the siding with clean water to remove the soapy residue.
There is a simple procedure used by professional painters to fix cracks in siding.
Repair or patching fiber cement board siding.
Fiber cement siding defects failures problem troubleshooting.
Scrub away at any bits of mold mildew or stains keep in mind that tough persistent stains might just have to be painted over.
First use a small hammer and chisel in combination to knock away any cracked crumbling or loose concrete.
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.
Settlement of the structure movement of the foundation would cause cracks in the siding but it would not be a likely cause unless there was also corresponding cracks on the interior wall surface in the same area.
This article describes the types of problems that occur in fiber cement siding installations in north america including siding shrinkage gaps at butt joints cracks breaks and loose or buckling siding boards or shakes.
Then rinse the area.
Mix a solution of 1 2 cup trisodium phosphate and 1 gallon of water.
Then refresh the power washer with fresh water to give it a good rinse.
Chip to a depth of about one inch below the surface plane.
Allow the patch to thoroughly dry and apply another thin layer of patching material if the first layer shrank during the drying process.
Refer to manufacturer recommendations for products that are compatible with fiber cement.