Could it be asbestos?

1. What's the material?

Popcorn or textured ceiling (sprayed on) Vinyl or asphalt floor tiles (often 9 × 9 inch) and their black adhesive Sheet vinyl flooring (the felt backing) Insulation on pipes, boilers or ducts (white wrap, blanket or tape) Loose attic or wall insulation that looks like gray-brown or silver-gold pebbles (vermiculite) Hard cement siding or roof shingles Drywall joint compound, patching compound or textured wall paint Insulation around a furnace or wood stove (millboard, cement sheet, paper, door gaskets) Ceiling tiles (drop-ceiling or glued-on) Something else

2. When was the home built?

Before 1950 1950 to 1980 1981 to 1989 1990 to 1999 2000 or later I don't know

3. What shape is it in?

In good shape, and I'm leaving it alone Damaged, crumbling or worn I'm about to renovate, sand, drill or remove it

Your answer

Answer the three questions to see what official sources say.

Can you tell by looking?

No. "Generally, you can't tell whether a material contains asbestos simply by looking at it, unless it is labeled," says the EPA. If in doubt, treat the material as if it contains asbestos and leave it alone.

How the checker decides

It uses what official sources say about each material and era:

• "Treat it as asbestos" where an official source says to assume it is. EPA says to assume vermiculite attic insulation contains asbestos. OSHA requires contractors to presume pipe and boiler insulation in buildings built by 1980 contains it.
• "Possible" for materials that official sources list as common asbestos products in homes of that age.
• "Less likely" and "unlikely" for later homes, after the relevant bans. Asbestos was never banned all at once in the US. See when they stopped using asbestos.

No answer here means a material is safe to sand, cut or remove. If you're about to disturb it, get it tested.

The year your home was built isn't the whole story

Homes get renovated, and old materials get reused. A 1990s house can have an older furnace; a 1950s house can have new floors over old tiles. Answer for the age of the material if you know it.

Sources

• EPA: Protect Your Family from Exposures to Asbestos and Learn About Asbestos
• EPA: Asbestos-contaminated vermiculite
• CPSC: Asbestos in the Home
• ATSDR: Preventing asbestos exposure
• OSHA asbestos construction standard, 29 CFR 1926.1101

Last reviewed October 29, 2026. See our sources.