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.
How to repair holes in fiber cement siding.
Step 4 apply fresh paint.
Refer to manufacturer recommendations for products that are compatible with fiber cement.
Step 1 clean the siding.
Step 2 replace the caulking.
How to repair fiber cement siding.
You then let the patch dry and sand it to blend into the surrounding parts of the plank.
Mix the latex modified cementitious patching compound in a small bucket according to the manufacturer s.
The patch is mixed formed and spread to match the contours of the board.
To repair hole in fiber cement siding there is a special putty that can be used as a patch.
This putty should be included in every fiber cement repair kit.
Put on a pair of rubber gloves.
Step 3 repair any holes.
Mix a solution of 1 2 cup trisodium phosphate and 1 gallon of water.
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 cracks in fiber cement siding step 1.
Before you do anything else you want to get the siding nice and clean.