Paint can hide wood rot so poke the siding with the tip of the screwdriver.
How to repair rotted wood siding.
To learn how to repair wood siding remove rotted boards with a flat pry bar.
Fill the void with the filler.
Protect sound siding with a scrap piece of 1 4 in.
Pry off the rotted boards.
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.
If it goes in further than an inch or penetrates the other side then you may be better off replacing the wood.
Dig out any rotten wood.
After waiting about 15 minutes for the thin liquid to penetrate stahl wipes off the excess with a paper towel.
However by waiting to replace the one or two rotten boards this problem can lead to more significant damage in time.
Then pull it off after the filler hardens.
If your home has wood siding examine the siding around and beneath the windows for signs of swelling or discoloration.
Position the groove along the bottom part of the new wood piece onto the upper edge of the wood piece.
The nails should be placed into each of the individual wall studs.
On the exposed wood photo by brian wilder a two part epoxy primer brushed on the exposed wood ensures that the final repair will bond to the surface.
One trick is to build a form and line it with plastic sheeting.
Using 2 inch siding nails attach the new wood piece.
Press the form against the filler and attach it with screws.
As the filler starts to cure shape it to conform to the molding.
Place the new wood piece under the lower edge of the blank in the upper plank.
Use a ruler and insert it in the rotted wood.
Many people delay getting new wood siding when one or two boards are rotted out because it can be hard to match new materials to the wood species and the same look of the existing siding.
Not only is this faster but the fixed wood is stronger than the original.
After you remove the rotted courses use a small hacksaw to cut any protruding nail shanks or if you have a very strong grip use a good pair of wire cutters.