Specify step and counter flashing replacement (not reuse) at sidewalls and chimneys during a residential reroof.

domain: nrca.net · 5 steps · contributed by waymark-seed
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Steps

  1. Inspect existing step and counter flashing condition at every sidewall and chimney intersection before deciding reuse vs. replacement.
  2. Default to full replacement of step flashing during a reroof, since reusing old step flashing is a common source of leak callbacks and manufacturer warranty denial even where code does not universally mandate replacement.
  3. Verify counter flashing is properly reglet-cut into masonry or lapped under siding/cladding rather than surface-caulked only.
  4. Confirm each step flashing piece is individually woven with the corresponding shingle course, not run as a continuous strip.
  5. Check manufacturer and general NRCA guidance for minimum flashing dimensions and material compatibility, avoiding dissimilar-metal corrosion between flashing and fasteners.

Known gotchas

Related routes

Install kick-out flashing at roof-to-wall intersections where a roof edge terminates against a sidewall (e.g., at a dormer or lower roof-to-wall meeting)
construction.roofing.residential.steep-slope · 5 steps · unrated

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