Wood siding can rot or become damaged over time and will need to be replaced with new siding. Often only a few boards have to be replaced, requiring the existing siding to be crosscut in place with a circular saw and removed.
How to Remove and Replace Wood Siding:
Cutting Existing Siding: When crosscutting the existing siding, be sure to stagger the end joints so they aren’t aligned above each other. If the siding doesn’t have wood or plywood sheathing behind it, be sure to crosscut the damaged siding over a stud.
Cut Existing Siding Nails: Cut through the nails that are holding the old siding in place. An oscillating tool with a metal cutting blade works great for this, or you can use a mini hacksaw with the blade extended beyond the end of the holder. In a pinch you can wrap duct tape around the bottom of a hacksaw blade to protect your hand, and use it to cut through the nails.
Cut and Prime Replacement Siding: Cut the new siding to length, prime all four sides, and allow the primer to dry before installing.
Attach Replacement Siding: To install the replacement siding, start at the bottom and work your way up. Overlap the boards so each row of new siding has the same reveal as the old siding. You can use a tape measure to mark the reveal of each piece of replacement siding, or make a spacer gauge from two blocks of wood screwed together. The new siding can be blind nailed near the top of the siding, so the row above it covers the nails; or the siding can be face nailed near the bottom with the nails exposed. Be sure to use corrosion resistant galvanized or stainless steel siding nails.
Caulk and Paint Siding: When the repair is complete, caulk all the end joints, and then apply two coats of high quality exterior paint.
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