What kinds of building materials may contain asbestos? Product Location % Asbestos Dates of Use Binder Friable/ Nonfriable How fibers can be released ROOFING & SIDING Roofing felts Flat, built up roofs 10-15 1910-present Asphalt Nonfriable Replacing, repairing, demolishing Roof felt shingles Roofs 1 1971-1974 Asphalt Friable Replacing, demolishing Roofing shingles Roofs 20-32 ?-present Portland cement Nonfriable Replacing, repairing, demolishing Roofing Tiles Roofs 20-30 1930-present Portland cement Nonfriable Replacing, repairing, demolishing Siding shingles Siding 12-14 ?-present Portland cement Nonfriable Replacing, repairing, demolishing Clapboards Siding 12-15 1944-1945 Portland cement Nonfriable Replacing, repairing, demolishing WALLS & CEILINGS Sprayed coating Ceilings, walls, and steelwork 1-95 1935-1978 Portland cement, sodium silicate, organic binders Friable Water damage, deterioration, impact Troweled coating Ceilings, walls 1-95 1936-1978 Portland cement, sodium silicate Friable Water damage, deterioration, impact Asbestos-cement sheet Near heat sources such as fireplaces, boilers 20-50 1930-present Portland cement Nonfriable Cutting, sanding, scraping Spackle Walls, ceilings 3-5 1930-1978 Starch, casein, synthetic resins Friable Cutting, sanding, scraping Joint compounds Walls, ceilings 3-5 1945-1977 Asphalt Friable Cutting, sanding, scraping Textured paints Walls, ceilings 4-15 ?-1978   Friable Cutting, sanding, scraping Millboard, rollboard Walls, commercial buildings 80-85 1925-? Starch, lime, clay Friable Cutting, demolition Vinyl wallpaper Walls 6-8 ?   Nonfriable Removal, sanding, dry scraping, cutting Insulation board Walls 30 ? Silicates Friable Removal, sanding, dry scraping, cutting FLOORS Vinyl-asbestos tile Floors 21 1950-1980? Poly(vinyl)-chloride Nonfriable Removal, sanding, dry scraping, cutting Asphalt-asbestos tile Floors 26-33 1920-1980? Asphalt Nonfriable Removal, sanding, dry scraping, cutting Resilient sheet flooring Floors 30 1950-1980? Dry oils Nonfriable Removal, sanding, dry scraping, cutting Mastic ashesives Sheet flooring and tile backing 5-25 1945-1980? Asphalt Friable Removal, sanding, dry scraping, cutting PIPES & BOILERS Cement pipe and fittings Water and sewer mains 20-? 1935-present Portland cement Nonfriable Demolition, cutting, removing Block insulation Boilers 6-15 1890-1978 Magnesium carbonate, calcium silicate Friable Damage, cutting, deterioration Preformed pipe wrap Pipes 50 1926-1975 Magnesium carbonate, calcium silicate Friable Damage, cutting, deterioration Corrugated asbestos paper Pipes, high temp., moderate temp. 90 35-70 1935-1980? 1910-1980? Sodium silicate, starch Friable Damage, cutting, deterioration Paper tape Furnaces, steam valves, flanges, electrical wiring 80 1901-1980? Polymers, starches, silicates Friable Tearing, deterioration Putty (mudding) Plumbing joints 20-100 1900-1973 Clay Friable Water damage, cutting, deterioration Source: United States Environmental Protection Agency

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