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Repairing Damaged Vinyl Siding

By Bob Formisano, About.com

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Cut and Install Replacement Vinyl Siding


Next you will cut and install a section of replacement vinyl siding for the repair.
  • To make speedy work of cutting the siding, use a quality layout square like the Stanley Quick® Square that will give you a clean, straight right angle cut when cutting the replacement section of vinyl siding.
    Compare Prices Stanley Quick® Square
  • Cut the siding using a utility knife with a new blade.
  • Cut the replacement piece of vinyl siding about 3" longer than the section you removed. This gives you about 1½" of overlap on both ends.
  • You must also cut back the nail hem about 2" on each side of the replacement panel so it fits into the space of the removed section.
  • Slide the replacement section into position. Hook the replacement section's bottom edge (buttlock) into the lock at the top edge (top lock) of the piece below. Push the replacement up until it snaps into place.
  • Space the nails about 12" apart and center them in the elongated holes in the nail hem.
  • Leaving a 1/32" gap between the nail head and the siding, nail the replacement panel into place using galvanized nails with heads a minimum of 5/16" in diameter and with a shank of 1/8" in diameter.
  • The nails must be long enough so they can penetrate at least 3/4" into framing or furring.

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