Repairing Siding From Rot Damage

Lift the bottom shingle and slip in the kickout flashing.

Repairing siding from rot damage.

The sheathing and framing sometimes need repairs too but that is less common. If your siding has a lot of damage due to pests or rot then that s probably the time to think about replacing it for a more robust siding like this fiber cement lap siding. The heads will break the paper face allowing water to soak in and deteriorate the siding. If the wood is discolored but the screwdriver test did not detect.

The goal was to get 2 3 inches above the inside of the siding. Generally fiber cement sidings last a lot longer than their wooden counterparts. When you come across rotted wood in your old house projects instead of replacing the damaged wood you also can repair it with specialty epoxy penetrants also called consolidants and fillers to make repairs. Inspect the sidewall around and underneath the fascia and inside the house for signs of moisture damage and repair any rotted areas.

However the amount of present rot can be deceptive. This can be tough since so many times the siding is nailed down. Seal these joints with a 35 year paintable acrylic caulk. Gap at corner and butt joints.

We tear off the damaged hardboard and replace it with fiber cement siding. Carefully examine your t1 11 siding for signs of mold wood rot or beyond minor water damage. If the area of the siding you need to repair is larger than two to four inches the best and most permanent solution is to replace that particular panel of siding. 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.

Caulk any nailheads that break the paper face. A couple easy solutions that saved me tons of time was to gently pull up on the siding at the studs with a pry bar careful enough not to damage the siding but enough to loosen a nail or two.