Mold Surface Remediation Labor and HEPA Vacuuming
The labor cost driver between the scope tier and the chemistry: the hours to physically clean remediated surfaces. S520 source removal is a multi-pass operation (HEPA vacuum, damp wipe, HEPA vacuum again) at a production rate the substrate and access set. Gives the labor-hours from area, passes, and production rate, and the crew calendar time. The Condition, substrate, and access govern the rate; non-cleanable porous materials are removed, not cleaned (ANSI/IICRC S520).
Formula and source
labor_hours = affected_sf x passes / production_sf_per_hr; crew_hours = labor_hours / crew_size.
Source-removal multi-pass cleaning labor method (HEPA vacuum / damp wipe / HEPA vacuum) under ANSI/IICRC S520, by name. Field-labor arithmetic, not edition-bound.
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