Repairing Hardboard Lap Siding

Remove the nails on the lap board then use the claw of the hammer to split the board down the center image 1.

Repairing hardboard lap siding.

Remove the siding panel that is damage and install a fresh hardboard siding panel. Once the nails are out place the pry bar beneath the damaged section carefully and cut the nails at the back of the siding with a reciprocating saw. Paint the dried putty to match the hardboard siding. Remove the damaged siding panel using a claw hammer and extract the nails left on the wall from the old panels using tin snips.

If needed replace the sheathing behind the siding using 1 2 plywood covered with builder s felt or housewrap. You might notice bulging along the bottom edges a loose layer or soft. To remove the old siding simply score or cut away any old caulk or paint that might be in the joints. Cut the fiber cement siding to length.

The siding panels nearest to the ground are usually the first to mold. Let each coat of paint dry individually as instructed by the manufacturer. Score down the damaged lap siding with a utility knife. I used a ryobi jobplus to score ours.

Using a paintbrush apply two coats of exterior house paint over the putty to hide the repair. How to remove and replace siding. Repair the siding remove the nails in the corner cap. Hardboard lap siding has been used on homes for years because it mimics the look of wood siding but is much less expensive.

Cut fiber cement siding. If there s a chance to use a power tool i might as well once it s cut you ll simply begin prying away the broken piece. Check the siding panel for molds holes or any damage. Remove the deteriorated hardboard siding using a pry bar and chisel being careful not to damage the good siding above it.

This is most common on the bottom few courses near the foundation.