Repair Rotted Window Sill Youtube

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.

Repair rotted window sill youtube.

Where the damage in the photo above is large it fortunately has not extended to either side of the vertical trim board. Your window sill is the bottom portion of your window running horizontally within the jamb resting against the outside of the window sash. Window repair from wet rot. Wooden sills have a tough time standing up to the elements year in and year out.

Rot moving up vertical trim boards. Repair rotted window sill. 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. See below for tools and a shoppin.

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. This old house general contractor tom silva shares some tricks of the trade for installing a new long lasting windowsill.