How To Repair Water Damaged Masonite Siding

Once the identification has been done use a utility knife to cut through the damaged siding as accurately as possible.

How to repair water damaged masonite siding.

Use a pencil to clearly identify the area. Scrub the surface of the rot or damage with a wire brush to remove loose fibers and soft spots. We tear off the damaged hardboard and replace it with fiber cement siding. On discovering any of these problems fix it before it escalates out of hand.

Clean the hardboard with a stiff bristle brush. Here are a few tips on how to repair masonite siding. Scrub the brush around the hole to dislodge dirt and debris. Scrape off flaking paint and debris from the damaged area using a paint scraper.

In most cases the original layer of building paper or housewrap at the bottom of the wall was enough to prevent water infiltration and damage beneath the siding. Remove the damaged area. In order to go about your repair project effectively mark out the area that has been damaged. Locate and cut the damage.

Then apply some primer over the affected area. If the masonite is already compromised scrape off the area in consideration. Slightly overlap the putty onto the surrounding hardboard by 1 inch. The sheathing and framing sometimes need repairs too but that is less common.