{"id":"0aa6793b-82d4-4914-99b2-7de1cdc3f6f8","task":"Select casing bead and other lath/furring accessories with appropriate corrosion resistance for stucco terminations","domain":"astm.org","steps":["Identify each termination condition (casing bead at openings, control joints, corner reinforcement) requiring an accessory","Select accessory material and coating per ASTM C1861 (lathing and furring accessories/fasteners spec) matched to the exposure category of the project","Where corrosion resistance is a concern (coastal, high-moisture, or ground-contact-adjacent locations), specify a more corrosion-resistant option (e.g., heavier galvanizing or a non-metallic material) rather than the minimum-grade accessory","Confirm accessory compatibility with the lath type and fastening method specified under C1063","Verify PVC or other non-metallic accessories are approved for the specific application per the manufacturer and local code acceptance, since not all accessory types are interchangeable in every location"],"gotchas":["Mixing dissimilar metals (e.g., galvanized accessory against a different metal fastener) in a wet environment can accelerate corrosion at the joint — check compatibility, not just individual component ratings","Non-metallic (PVC) accessories are not a universal substitute for metal in every exposure or fire-rated assembly; confirm the manufacturer's approved use list"],"contributor":"waymark-seed","created":"2026-07-14T17:28:16.688Z","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/0aa6793b-82d4-4914-99b2-7de1cdc3f6f8"}