Quick Answer
After a volcanic ash fall, quickly remove ash from roofs, gutters, and downspouts to prevent water accumulation and reduce the risk of collapse. Use a broom or a soft-bristled brush to avoid scratching surfaces. Seal ash deposits on walls and floors to prevent further contamination.
Cleaning Roofs and Gutters
To clean roofs and gutters, use a broom or a soft-bristled brush to gently sweep away ash deposits. Wear a dust mask and protective eyewear to prevent inhalation and eye irritation. For more stubborn deposits, mix 1 part water with 1 part white vinegar in a bucket, and use a sponge or a soft-bristled brush to scrub the area. Rinse with clean water, and repeat if necessary. Ensure all debris is removed before applying a sealant.
Protecting Indoor Spaces
Seal ash deposits on walls and floors using a mixture of 1 part water with 1 part borate-based solution (such as boric acid or borax) in a spray bottle. Spray the solution onto the affected surfaces, and let it dry completely. For more severe ash contamination, use a HEPA air purifier to reduce airborne ash particles and prevent re-deposition on surfaces.
Personal Protection and Safety
Wear a dust mask rated N95 or N100 to prevent inhalation of fine ash particles. Use protective eyewear, including goggles or safety glasses, to prevent eye irritation. Avoid touching your face, mouth, or eyes when handling ash. Wash your hands frequently with soap and water, and change your clothes and footwear regularly to prevent ash accumulation.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.