Window Sill Rot Repair

If not try to reconstruct it as closely as possible by taking measurements.

Window sill rot repair.

A window sill is the bottom portion of the window and usually but not always has a lip that overhangs the trim molding and over time these can get damaged or even rot. Dig out the rotted wood and refill the cavity using products made specifically for this type of job. A simple epoxy repair will do the trick if the rot is confined to a small area but if more than 10 percent of the sill is rotten the old sill should be cut off and replaced. Wooden sills have a tough time standing up to the elements year in and year out.

Yes you can use epoxy to repair a rotted sill of an old window and that can actually be better than replacing the window the great thing about using epoxy on a window is that you end up with something stronger than wood. Now cut out the shape of the window sill with a saber saw making. Repair rotted window sill. It s easy to figure out what you need to fix a rotted windowsill once the bad parts are out.

While most wood rot starts at the window sill the length of time the damage is ignored will affect the amount of damage that needs to be repaired. If you find your window sill is starting to crack or chip fill them in and repair them before the wood begins to rot. Step 1 getting started. This makes replacement simple as the new sill can be cut from a standard 2 4.

Rot moving up vertical trim boards. See below for tools and a shoppin. If you can keep your old window sill intact you can simply trace the design on your new piece of wood. Many window sills including ours are 1 1 2 thick.

Your window sill is the bottom portion of your window running horizontally within the jamb resting against the outside of the window sash. But if you ve waited too long and have found rotten wood it s time to repair or replace your window sill. How to replace exterior rotted wood window sill. For this project i used a solid piece of kleer cellular pvc sill that matches the profile and thickness of the other sills on the house.

When you ve done this mark them on the new window sill. Step 3 cutting the new window sill. There are many sizes and styles of windows of course and you want to match what was there as closely as possible. If your sill is rotting or falling apart replace it with these simple steps.

Where the damage in the photo above is large it fortunately has not extended to either side of the vertical trim board.