Address Chimney and Prepare Surface by Removing Nails

What happens here

Inspect any chimney structures for improper seals or makeshift repairs, like the discovered coffee can mortared onto a converted gas fireplace flue, and plan for proper remediation. Once all damaged boards are repaired, methodically go over the entire roof decking to hammer down any protruding nails flush with the surface or completely remove them using a pry bar or specialized nail ripper. This crucial step ensures a smooth, nail-free surface for the new underlayment and shingles.