Repairing Damaged Fiber Cement Siding

Occasionally some sort of accident or natural disaster will damage your home s fiber cement lap siding cracks and chips can allow moisture into the layers beneath potentially causing bigger problems later so it is best for you to replace the damaged siding as soon as you notice it.

Repairing damaged fiber cement siding. Mix a solution of 1 2 cup trisodium phosphate and 1 gallon of water. Use a pry bar to remove the damaged siding. A typical procedure is to install furring strips on the existing wall avoiding breaking the existing 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.

Remove any nails from the top piece of good siding. How to repair cracks in fiber cement siding step 1. Put on a pair of rubber gloves. Face nail the top.

Mix the latex modified cementitious patching compound in a small bucket according to the manufacturer s. Cut the fiber cement siding to length wear approved dust protection. Allow the patch to thoroughly dry and apply another thin layer of patching material if the first layer shrank during the drying process. A common remodeling practice is to install new vinyl or aluminum siding over cement asbestos shingle siding as well as over many other older siding materials when the old siding has become damaged leaky or cosmetically ugly.

Brush away any chipped paint small loose pieces of siding or anything else that mars the plane of the siding. Step 2 sand over the damaged area lightly but thoroughly with a medium grit sandpaper to smooth any jagged edges and create an easy grip surface for the patch product. Remove fix or replace broken shingles clapboards fiber cement and vinyl siding. Repairing damaged siding series.

To remove and replace damaged siding. 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. Vinyl siding repair see how to disconnect vinyl siding make a replacement piece and re engage the entire panel in a few steps. Blind nail the fiber cement siding in place starting with the bottom piece.