Asbestos Removal
Bumpy acoustic ceiling texture was sprayed onto ceilings in a great many houses from the 1950s into the 1980s, and some of it contained asbestos. Spray-applied asbestos products were restricted in the 1970s, but existing stock was used for years afterwards, so the date of the house is a guide, not an answer. The texture is soft and crumbles easily, which is why scraping it dry is the worst thing to do. If it tests positive, the room is emptied, the floor and walls are sealed in plastic, and the texture is wetted and scraped down into bags.
Popcorn, cottage-cheese and acoustic ceilings were sprayed onto ceilings in huge numbers of houses from the 1950s through the 1980s. Some of those textures contained asbestos and many did not. Spray-applied asbestos products were restricted in the 1970s, but material already manufactured kept being used for years afterwards, so a house built in 1979 is not automatically clear. The only way to know is a sample. If it comes back negative, the ceiling is an ordinary drywall job and any contractor can take it down.
Acoustic texture is soft, loosely bound and crumbles at a touch, which is exactly what makes it easy to scrape and exactly why it is risky. Scraped dry, it falls as a fine dust that settles on every surface in the room and travels through the house on clothing and air currents. Sanding is worse. The safe approach keeps the material wet the whole time, so it comes down as damp clumps that drop straight onto plastic sheeting and into bags.
The room is emptied, then floors and walls are covered in plastic sheeting and every opening is sealed: doors, vents, outlets and light fixtures, with the power to the ceiling fixtures isolated. A HEPA air machine holds the room under negative pressure so air flows into the work area, not out of it. The texture is misted, left to soak, and scraped down section by section. The bare drywall is then cleaned and sealed, and the room stays sealed until a clearance air test shows it is clear.
An intact textured ceiling that nobody is going to touch can stay. Painting it binds the surface, which is a form of encapsulation, though it makes later removal harder. Removal makes sense when the texture is water-stained and flaking, when recessed lighting or other ceiling work is planned, or when you simply want flat ceilings. Ceilings are often tested at the same visit as floor tile in mid-century houses, since the two tend to turn up together.
How long does it take? A single room is usually a day. A whole floor of ceilings is two to four, depending on access and how much finishing work follows.
These usually come up in the same conversation:
Samples of the suspect material, analysed by a lab. You cannot tell asbestos by looking, and nobody should quote removal before the result is in.
Learn More →Sometimes the right answer is not removal. Intact material can be sealed, wrapped or enclosed so it stays put, for a fraction of the disruption.
Learn More →9-inch vinyl-asbestos tile and the black adhesive under it, removed before new flooring goes down, so nobody sands or grinds it later.
Learn More →Free · No obligation
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