Replacing Hardboard Siding

Set the depth of the skill saw to just go through the hardboard siding.

Replacing hardboard siding.

When you replace the boards use a homemade reveal set jig to match the reveal of the existing siding. Cut the fiber cement siding to length wear approved dust protection. If you re replacing more than one board in a run simply hammer a nail into the top corner to support it and then move half way down the board. Once the cuts are made prime the ends of the siding.

Replacing the entire wall will blend better with the overall look of your home and also allow inspection of the sheathing to make sure there is no moisture damage or potential mold to other areas. Replace siding by working from the bottom up you might need a helper here. Then hammer away on the rest of the board. Check the rest of the hardboard siding for paint peelings.

The sheathing and framing sometimes need repairs too but that is less common. Begin painting the siding by applying acrylic latex primer. Remove the peelings using a scraper. Set the saw on the mark and slowly cut through the siding.

To remove and replace damaged siding. Paint the dried putty to match the hardboard siding. Remove any nails from the top piece of good siding. Remove the deteriorated hardboard siding using a pry bar and chisel being careful not to damage the good siding above it.

Make sure that the top surface of the siding is facing down away from the blade. Use a pry bar to remove the damaged siding. Let each coat of paint dry individually as instructed by the manufacturer. We tear off the damaged hardboard and replace it with fiber cement siding.

This will protect it from any water damage. Use a 4 foot level to check and then hammer in another nail. Attach the siding with 10d galvanized box nails driven into the overlap at least 1 2 in. The courses should overlap by at least 1 in.

Blind nail the fiber cement siding in place starting with the bottom piece. Wash down the entire hardboard siding with water containing mild detergent and allow the siding to dry completely. Install new hardboard siding. Use sandpaper to smooth and even the entire hardboard siding surface.

Let it dry before installing. If needed replace the sheathing behind the siding using 1 2 plywood covered with builder s felt or housewrap. Above the bottom edge. Using a paintbrush apply two coats of exterior house paint over the putty to hide the repair.