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.
How to repair cracked fiber cement siding.
Step 1 clean the siding.
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.
Put on a pair of rubber gloves.
Mix the latex modified cementitious patching compound in a small bucket according to the manufacturer s.
Cracking due to an impact on the surface of a fiber cement board is less likely because the material tends to dent rather than fracture when well supported.
Before you do anything else you want to get the siding nice and clean.
Step 3 repair any holes.
Not only will that automatically improve its.
How to repair cracks in fiber cement siding step 1.
To repair hole in fiber cement siding there is a special putty that can be used as a patch.
Mix a solution of 1 2 cup trisodium phosphate and 1 gallon of water.
Step 2 replace the caulking.
How to repair fiber cement siding.
This putty should be included in every fiber cement repair kit.
You then let the patch dry and sand it to blend into the surrounding parts of the plank.
The patch is mixed formed and spread to match the contours of the board.
Refer to manufacturer recommendations for products that are compatible with fiber cement.
Step 4 apply fresh paint.