Small cracks or holes can be filled with wood putty sanded smooth primed and repainted.
How to patch siding on house.
Cut a vinyl patch 4 inches 10 cm wider than the removed segment.
Do not drive the nails flush or countersink them.
Make your repair last.
If your siding is buckling splitting warping delaminating or coming loose in large areas or if you see mold or other signs of moisture inside the siding remove a section and take a look.
The clapboard you use for a patch should blend in seamlessly with your existing siding.
Here s how to make sure you have a patch that s a perfect match before you begin.
Consult with a professional.
Measure the butt edge thickness and the widths of the exposed faces of a few courses on the wall.
Run a bead of sealant along all the cut edges except the nailing strip at the top.
Thoroughly paint all exposed edges and grooves.
Prime the back and edges of the new siding.
If the cracks are extensive replacement is the better option.
Gap at corner and butt joints.
Caulk any nailheads that break the paper face.
Cut piece of faded siding from an inconspicuous spot to replace the damaged section.
It ll better match the house than brand new siding.
Then press the siding piece in place.
I used gutter sealant like a glue to hold the edges of the patch to the existing siding.
The heads will break the paper face allowing water to soak in and deteriorate the siding.
Measure and mark a point 2 inches 5 1 cm away from each side of the removed segment.
Hold the removed segment up to a spare piece of vinyl siding.
Add an inch to the face width to account for the overlap of the piece above.
Cut the spare piece of vinyl along the marks using straight tin snips.
If you find plenty of moisture the building paper and flashings may not have been installed correctly.
Pull siding away from house and cut through the bottom edge with aviation snips.
Put on latex gloves first because you don t want this stuff on your skin.