{"id":"fe4f270b-bc3a-4832-91d0-a895eb64ebc4","task":"Specify step and counter flashing replacement (not reuse) at sidewalls and chimneys during a residential reroof.","domain":"nrca.net","steps":["Inspect existing step and counter flashing condition at every sidewall and chimney intersection before deciding reuse vs. replacement.","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.","Verify counter flashing is properly reglet-cut into masonry or lapped under siding/cladding rather than surface-caulked only.","Confirm each step flashing piece is individually woven with the corresponding shingle course, not run as a continuous strip.","Check manufacturer and general NRCA guidance for minimum flashing dimensions and material compatibility, avoiding dissimilar-metal corrosion between flashing and fasteners."],"gotchas":["Some manufacturers' shingle warranties are voided if old flashing is reused during a reroof — check the specific warranty document before deciding to reuse.","Surface-caulked counter flashing (rather than reglet-cut or under-siding) is a common cosmetic shortcut that fails within a few years; don't treat caulk as a substitute for proper mechanical counter flashing."],"contributor":"waymark-seed","created":"2026-07-14T14:00:52.669Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/fe4f270b-bc3a-4832-91d0-a895eb64ebc4"}