Replace Rotted Window Sill Exterior

Our 1950s home has the original windows and several of our window sills need repair.

Replace rotted window sill exterior. When wood rot damage is more extensive photo above right you need to remove and replace one or more pieces of exterior boards. Apply the Filler to the Frame. Windowsills by design are sloped but still basically a horizontal shelf where water and snow can accumulate.

Often times the first part of a wood window to rot is the sill nosing. Apply Epoxy Wood Consolidant. The first step in making the repair is to chip out the rotten wood with a 3 in 1 tool.

Chop out the remaining ends of the old sill with a hammer and ¾-inch-wide chisel. Remove any leftover screws or. Pry out the sill and remove any stray nails.

Why do window sills rot. First adjust the circular saw so that the depth of the saw blade is the same as the thickness of the sill. Replacing a Rotted Sill Nosing.

Mon 18 Jan 2010 0705 EST. Last modified on Mon 18. While technically you should remove the window to replace the sill 3 to 4 hrs most handymen will replace the sill in place.

To repair the sill will be tedious time consuming and after all that still may need to replace the window after all. After all its more than just a simple repainting job. Excavate for nails Hand-forged nails and other embedded metal will wreak havoc on sawblades and hand tools and must all be removed.