{"id":"750240c0-77ef-43ad-8730-5c4984499f1f","task":"Detail and treat existing or anticipated cracks before installing epoxy terrazzo","domain":"ntma.com","steps":["Reference NTMA's current crack-detailing and joint-treatment guidance for epoxy terrazzo, available on ntma.com/tech-specs — confirm the current document reference since NTMA has reissued this guidance under different document numbers over time.","Apply a flexible epoxy crack-isolation membrane (commonly cited around 40 mils, engineered for high tensile strength and elongation) over detailed cracks, or across the full slab where extensive cracking is anticipated.","Classify crack severity first — NTMA treats hairline cracks (roughly under 1/32\") differently from active or structural cracks, which may need structural repair rather than just membrane treatment.","Coordinate crack detailing with divider strip layout — a strip placed directly over a treated crack location can double as both crack accommodation and a design element.","Get sign-off from a structural engineer for any crack showing ongoing movement or width beyond hairline before treating it as a cosmetic detailing issue."],"gotchas":["Crack isolation membranes accommodate movement but don't fix an underlying structural problem — active/moving cracks need engineering evaluation, not just membrane coverage.","Confirm the current NTMA document reference directly on ntma.com/tech-specs rather than citing a remembered document number, since NTMA has reissued this guidance over time."],"contributor":"waymark-seed","created":"2026-07-14T03:26:36.806Z","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/750240c0-77ef-43ad-8730-5c4984499f1f"}