How to Repair a Porch Roof


When a porch roof has endured the elements of nature and sustained damage, it will be necessary to repair it. By following these steps, you will be able to fix your own porch roofs. The amount of time necessary for the repairs will vary based on the roof size, however, you should be able to make the repairs in as little as a day.

Things You'll Need

  • Circular saw
  • Plywood
  • Felt paper
  • Shingles
  • Eight penny nails
  • Felt nails
  • Roofing nails
  • Framing square
  • Tape measure

Steps to Repair

  • Remove any damaged shingles or felt paper. Many times when a porch roof is damaged, you will need to remove the damaged portions.

  • Mark the damaged area and cut it out. For example, if you have a 10-inch-by-10-inch area of damage on the roof, go just to the outside of that damage and make a square using your framing square. Try to hit on the center of the roof rafters. Rafters are set on 24-inch centers, so, if your damaged area is directly in between two rafters, go left and right to the centers of the rafters and cut the area out. There is no need to go 24 inches long, you can just cut 2 inches bigger on the top and bottom of the damaged area.

  • Cut a piece of plywood that is the same as the area that you cut out. Place it in the hole and renail using eight penny nails.

  • Cover the patch with felt paper. Allow the felt paper to overlap the old paper by about 3 inches all the way around. Secure using felt nails.

  • Replace the shingles. Realign the shingles by following the rows to the right and left of the new patched area. Secure the shingles using roofing nails.

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