Asbestos was added to plaster and drywall products for a number of reasons ranging from fire proofing to noise absorption.
Plaster ceiling tiles asbestos.
Asbestos was also a common ingredient in some mastic adhesives used for glue up application of ceiling tiles.
Most of these brands manufactured and sold plaster during the period of the 1940s to 1970s.
Asbestos was used in plaster designed to have a high resistance to fire.
An asbestos ceiling is also called an acoustic ceiling or popcorn ceiling due to its soundproofing qualities and it looks a little like popcorn once it s sprayed on.
It s worth testing these ceilings if they are getting old and crumbling or if you plan on doing nearby renovations that could disturb the area and release dust.
Some older brands of plaster are known to contain approximately 1 of asbestos in plaster which is now recognized as injurious for human health.
It was commonly applied in swirls and stipples but may also be smooth and was applied to various materials including plasterboard and lath and plaster.
3 look for signs of damage.
Plaster is used in a range of different places throughout a home or commercial building including walls and ceilings.
Asbestos was used commonly in ceilings since it helps with soundproofing and insulation it s more resistant to fire and it also hides ceiling imperfections.
Asbestos is a mineral that occurs naturally in the environment that is made up of long thin fibers that look similar to fiberglass.
Acoustical plaster 1950s 1974 all purpose joint compound 1967 1977 bedding compound.
Grace are the most renowned names.
The most common form of asbestos in ceilings is artex a type of decorative textured wall coating.
Among which keene united states gypsum national gypsum and w r.
Insulating cement 1940 1951 finishing cement 1940 1951 kaylo 10 block insulation.
Asbestos tile 1931 1970 asbestos floor tiles 1931 1970 accobest as 474 gasketing material.
Asbestos exposure may pose serious health risks.
Artex is the trademark of british company artex limited.
Asbestos was common in building materials between 1920 and 1986 asbestos was common in decorative plaster between the 1940s and 1980s and in the artex ceilings that were popular in the 1960s and 1970s.
These textured plaster ceiling coatings were a common use of asbestos especially but not exclusively between the 1950 s and 1970 s.
Asbestos was used also in acoustical plaster both as a direct asbestos additive and as an asbestos contaminant in plasters to which vermiculiet or zonolite were added to produce a light weight plaster having good acoustical properties.
Asbestos may have been used in the ceiling tile tiles and in lay in ceiling tiles in suspended ceilings in the tile body or in paper facing or backing on the ceiling tiles.
It can be extremely difficult to identify asbestos in plaster and plasterboard without laboratory testing.