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ENVIRONMENTAL HAZARDS - INSPECT, TEST, REMEDY
AGE of a BUILDING - how to determine
AIR POLLUTANTS, COMMON INDOOR
ASBESTOS CEILING TILES, Asbestos-Containing
ASBESTOS CEMENT ROOFING
ASBESTOS CEMENT SIDING
ASBESTOS DUCTS, HVAC
ASBESTOS FLOORING HAZARD REDUCTION
ASBESTOS FLOORING REMOVAL GUIDE
ASBESTOS-FREE INSULATION MATERIALS
ASBESTOS IDENTIFICATION IN buildings
ASBESTOS LIST of PRODUCTS
ASBESTOS MATERIAL REGULATIONS
ASBESTOS PHOTO GUIDE to MATERIALS
ASBESTOS REMOVAL, INCOMPLETE
ASBESTOS REMOVAL CERTIFICATION
ASBESTOS REMOVAL, WETTING GUIDE
ASBESTOS RISK ASSESSMENT
ASBESTOS TESTING LAB LIST
ASBESTOS UNDER the MICROSCOPE
CATHEDRAL CEILING INSULATION
CEILING FINISHES INTERIOR
CEILINGS, DROP or SUSPENDED PANEL
CEILINGS & WALLS, PLASTER TYPES
CERAMIC TILE, ASBESTOS in?
FLOOR TILE HISTORY & INGREDIENTS
FLOOR TILES ASBESTOS
INDOOR AIR QUALITY IMPROVEMENT GUIDE
INSULATION IDENTIFICATION GUIDE
METAL LATH, PLASTER & STUCCO
PLASTER TYPE IDENTIFICATION
SAFETY HAZARDS & INSPECTIONS
WORLD TRADE CENTER 9-11 DUST PHOTOS
Asbestos hazard in flooring or roofing adhesives, mastics, or sealants: This article provides opinion & comment on the hazard of friable asbestos release from flooring or roofing adhesives, mastics, or sealants.
This article series answers questions about floor tile, sheet flooring, or roofing cutback adhesives or mastics that may contain asbestos.Does or did roofing mastic products & sealants contain asbestos? What are the hazards of demolishing or working on floors or roofs where asphalt-based asbestos-containing mastics, cutback adhesives, or sealants were used? Page top photo of black mastic floor tile adhesive provided courtesy of reader G.M.
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Does Flooring Mastic, Cutback adhesive or Roofing Sealant/Mastic Contain Dangerous Levels of Asbestos?
In our roof sealant photograph (left) we are inspecting a roof that was patched in the 1980's - it would be reasonable to treat this roof flashing cement or patching compund as Presumed Asbestos Containing Material (PACM).
Certainly as we see in Rosato , the asbestos industry was constantly looking for uses of asbestos mining waste products that included granular asbestos dust and short asbestos fibers. Asbestos fibers were used as a strengthening material in roof flashing cements as well as in flooring mastics and cutback adhesives.
Asbestos was used in those forms in vinyl-asbestos flooring in both floor tile and sheet flooring forms. And as we document at CERAMIC TILE, ASBESTOS in?, asbestos was used in mixture with ceramic fibers (for certain products such as filters) and in ancient pottery applications.
Our photo (left) illustrates a floor tile installation in Barcelona, Spain. These floor tiles are estimated at more than 50 years old.
At ASBESTOS IDENTIFICATION IN buildings - we point out that the EPA and other expert sources note that
It is usually reasonable to cover over an asbestos-suspect floor, thereby significantly reducing the risk of sending asbestos fragments or particles of flooring or floor adhesive into the air at detectable levels. And by leaving the flooring material in place you actually expose the building to less asbestos hazard risk than by removing it (in most cases).
Watch out: demolition projects that disturb any asbestos containing material may produce friable asbestos debris, dust and thus airborne particles at dangerous levels, particularly if EPA or other expert advice is not followed. For example, see ASBESTOS REMOVAL, Wetting Guidelines.
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