How To Repair A Chip Edge In Cement Fiber Siding

Step 4 mix the quick setting cement using a margin trowel by adding 5 parts cement to 1 part quikrete acrylic fortifier until a lump free putty consistency is achieved.

How to repair a chip edge in cement fiber siding.

Step 3 thoroughly rinse the repair area after cleaning. Fiber cement lap siding is heavier than wood and requires a special diamond tipped blade or a tungsten carbide saw blade to cut. 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. Refer to manufacturer recommendations for products that are compatible with fiber cement.

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. To clean it start by taking a light wire brush and dipping it in a buck of water mixed with a cup of bleach and some dishwashing detergent. Scrub away at any bits of mold mildew or stains keep in mind that tough persistent stains might just have to be painted over. Put on a pair of rubber gloves.

Allow the patch to thoroughly dry and apply another thin layer of patching material if the first layer shrank during the drying process. Mix a solution of 1 2 cup trisodium phosphate and 1 gallon of water. If your repair includes the very bottom tier of siding add a spacer strip the thickness of your siding along the entire bottom edge to mimic the angle of your overlap. Brush away any chipped paint small loose pieces of siding or anything else that mars the plane of the siding.

Scrub and clean the surface of the repair area with a stiff bristle brush.