The short version
- — Lead paint hazards require specific personal protective equipment, including P100 respirators and certified HEPA vacuums, to prevent dust inhalation and ingestion.
- — Work areas should be isolated and kept under negative pressure to contain lead dust and prevent its spread to other parts of a property.
- — Different lead remediation strategies, such as encapsulation or full removal, depend on the condition and location of the lead paint within a structure.
What happened
Fine Homebuilding, as reported by Justin Fink, discusses lead safety for tradespeople encountering lead paint, which was prohibited for residential use in 1978. The article notes that while lead is hazardous, managing it safely involves understanding how it behaves and implementing specific measures.
Three types of lead exposure are outlined: primary, secondary, and passive. Primary exposure occurs during activities that generate lead-containing dust, such as prying, sanding, or scraping. Secondary exposure happens when dust generated during work is tracked to other areas via hands, clothing, or shoes, subsequently leading to ingestion. Passive exposure is caused by daily actions like opening doors or windows, or sweeping, which disturb existing lead paint and create dust.
The publication suggests that intact, undisturbed lead paint is not typically a major concern, especially when covered with a new layer of paint. This encapsulation approach is suitable for areas not subject to friction, like baseboards and crown molding, and specific encapsulant primers and paints are available. However, in high-friction areas such as windows and doors, complete paint removal is often recommended. When disturbing lead paint, personal protection is crucial, including a NIOSH-approved respirator with P100 particulate filters. Disposable coveralls and boot covers are also common to prevent secondary contamination. Containing the work area with physical barriers and maintaining negative air pressure using a HEPA air scrubber exhausting to the outdoors is advised. A certified HEPA vacuum is highlighted as a fundamental tool for dust collection during work and for thorough cleanup, emphasizing the distinction between a 'HEPA vac' and a 'certified HEPA vac'. The use of heat guns for paint removal should be cautious, with temperatures kept below 1100°F to avoid hazardous fumes, making infrared strippers a safer option.
This brief is prepared for CAA members to help you run a smarter, stronger trade business. Dates and figures reflect the information available at time of publication.