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.
Example
You enter
- Cleanable affected surface (ft²) 500
- Production rate (ft²/hr per pass) 100
- Cleaning passes (vac / wipe / vac) 2
- Crew size 2
You get
- Labor 10 labor-hr
- Crew calendar time 5 hr on the clock
Details, formula, and sources
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).
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.
The labor roll-up is public estimating arithmetic; the multi-pass source-removal method is named in the published ANSI/IICRC S520.
Estimate. AHJ and licensed professional govern.
Field names used by the API: affected_sf, production_sf_per_hr, passes, crew_size, labor_hours, crew_hours
- Production rate 100 ft^2/hr per pass is a starting rate; the Condition, substrate, and access govern the real rateANSI/IICRC S520
- Passes a default of 2 (vac / wipe, or vac / vac) with a third pass common; the field method governsANSI/IICRC S520