Asbestos / Lead Abatement Containment Take-Off
Containment poly sheeting, the negative-air machine count for the required air changes, and the regulated-waste bag count from the room dimensions.
Formula and source
poly = (floor_sf x floor_layers + wall_sf x wall_layers) x 1.10; req_cfm = volume x ach / 60; nam_count = ceil(req_cfm / nam_cfm); waste_bags = ceil(debris_cy x 27 / 4.4).
EPA NESHAP 40 CFR 61 Subpart M (asbestos), EPA RRP 40 CFR 745 (lead), and OSHA 1926.1101 / 1926.62 by name; a containment take-off.
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