How To Repair Loose Cement Board Siding

Refer to manufacturer recommendations for products that are compatible with fiber cement.

How to repair loose cement board siding.

Before you do anything else you want to get the siding nice and clean. Inspect the hardieplank siding on the exterior of your home for loose boards which will leave your house open to weather and insect damage. The area to be patched must be clean and solid around the edges. Step 1 clean the siding.

Step 2 replace the caulking. Due to liability concerns and practicality it is generally better to replace warped cement siding rather than to repair it. Step 3 repair any holes. How to fix a loose hardiplank board.

Remove any nails from the top piece of good siding. Use a pry bar to remove the damaged siding. The removal process for fiber cement siding essentially mirrors the installation process and you will need to hire a siding professional for the installation. Step 4 apply fresh paint.

Cut the fiber cement siding to length wear approved dust protection. 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. Blind nail the fiber cement siding in place starting with the bottom piece.

The siding may look like wood it may have a wood grain effect but it is primarily cement and requires a cement patch. Slide a paint scraper against the surface of the loose boards in a back and forth motion while applying.