Find and repair a leaking roof with this guide, including safety tips, repairing flashing, replacing shingles, and patching valleys.
When investigating a leak, make sure to take precautions against accidents: stabilize ladders and wear a safety line and harness.
ILLUSTRATION: JAN ADKINS
Repairing a rusted-out valley requires a careful patch.
Most shingle repair follows the same rules andsteps: Separate and isolate the bad shingle, remove the nails, slide it out,and replace. For chimney-flashing repair, clean out loose mortar andrust, then trowel roof cement the area.