- Complete a COSHH assessment for every waterproofing product used on site
- Provide forced mechanical ventilation throughout the application process
- Monitor the atmosphere for solvent vapour and oxygen levels during work
- Obtain a hot works permit before using torch-applied membrane systems
- Wear RPE, chemical-resistant gloves, and appropriate skin protection
- Ensure fire extinguishers are immediately available during hot works
- Plan escape routes and brief workers on emergency procedures below ground
- Provide temporary lighting that meets standards for the working environment
- Allow adequate flash-off time for primers before applying membranes
- Restrict access to the basement during application to essential workers only
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- DON'T apply solvent-based products in basements without forced ventilation
- DON'T use open flames near flammable primers or solvent-based coatings
- DON'T ignore product safety data sheets — follow them without exception
- DON'T allow smoking, naked flames, or sparks in the application area
- DON'T work in a basement alone during waterproofing operations
- DON'T skip atmospheric monitoring because the area feels well ventilated
- DON'T store excess flammable materials in the basement work area
- DON'T remove RPE during application or while fumes are still present
- DON'T enter the basement without confirming temporary lighting is working
- DON'T ignore headaches, dizziness, or nausea — leave the area immediately
See also: COSHH Awareness | Hot Works Fire Prevention
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