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Green Job Hazards: Weather Insulating/Sealing - Ventilation

Weather Insultating/Sealing - VentilationOSHA requires engineering controls to be used whenever feasible to reduce exposures to isoycanates (29 CFR 1910.1000 and 29 CFR 1926.55 – Air contaminants) which is the major component of SPF. Areas where SPF is being sprayed should be separated from other portions of the building.In addition, duct work should be sealed to prevent spread of fumes or vapors to other areas. Air handlers (fans) should move air across the room in one direction and move vapors/air contaminants away from operator and other workers in the area. Air should be vented to the outside using filters similar those used for truck bed-liner booths (use similar system as used in truck bed-liner industry). OSHA requires that all workers be informed of the presence of isocyanates in SPF and be provided with proper training. See 29 CFR 1910.1000, 29 CFR 1926.55, 29 CFR 1910.1200, and 29 CFR 1926.59

Additional information on Ventilation can be found on the OSHA web page on this topic.

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