By
eHow Home & Garden Editor
Difficulty: Moderately challenging
Things You’ll Need:
- Roofing Cement
- Replacement Shingle
- Long Safety Rope
- Putty Knife
- Roofing Nails
- Extension And Roof Ladders
- Flat Pry Bar
- Hammer
- Wood Block
Step2
Tap a large, flat pry bar under the damaged shingle just above the gap between tabs until you hit a nail. Center the tool's nail-pulling slot on the nail, tap the bar in a bit more, and press down on the other end to pry the nail partly out. Then place a block of wood under the bar just down the roof from the nail to act as a fulcrum, and pry out the nail the rest of the way.
Step3
Continue to remove all nails that secure shingles directly above the damaged shingle and that also penetrate the top edge of the damaged shingle.
Step4
Pull out the damaged shingle and slip in the replacement (see A).
Step5
Align the replacement shingle and lift the shingle above it as needed to nail the new one into place with 1-inch (2.5-cm) roofing nails (see B).
Step6
Replace any nails that you removed from the shingles above.
Step7
Dab roofing cement over all the nail heads that you couldn't remove without breaking the shingle, as far up as it should go (just above the notch).
Step8
Use a putty knife to spread a little roofing cement under each shingle tab that you lifted during the repair, and press each shingle down to adhere it to the one below.