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