How To Repair Cement Board Siding

Put on a pair of rubber gloves.

How to repair cement board 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. Then using a pry bar gently lift the bottom edge of the overlapping siding. Watch this video to find out more. Mix a solution of 1 2 cup trisodium phosphate and 1 gallon of water.

Work your way down the board prying the bottom edge up and loosening the nails. Cut the fiber cement siding to length wear approved dust protection. Refer to manufacturer recommendations for products that are compatible with fiber cement. Face nail the top piece of fiber cement siding through the old siding.

Rinse the siding with clean water to remove the soapy residue. Fiber cement siding looks like wood but it s actually a tough industrial material alternative that s waterproof fire proof insect resistant making it a very popular choice for most homeowners. Prime and paint new siding to match the old. Put on protective eyewear and a face mask.

This will allow you to remove the nails without damaging the top piece of 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. Allow the patch to thoroughly dry and apply another thin layer of patching material if the first layer shrank during the drying process. However even this stuff isn t impervious to the test of time and the forces of nature so you might find yourself needing to give your siding a little sprucing and repair from time to time.