Continue tearing off the shingles and underlayment until you reach the roof jacks then start over at the top of the roof.
How to remove roof shingles yourself.
Push the shingles down to the roof jacks.
Hammer down any boards or nails that have come loose ensuring the.
Chances are the nails that will be securely seated in the wood so a bit of force will be needed with a twisting motion of the roofing shovel or spade.
Use a shingle scraper pitchfork or flat shovel to get under the shingles prying them up.
Remove shingles in a 2 to 3 ft wide section as you work down the roof.
Secure loose boards and cover large holes.
Replacement tear off 1.