Do all popcorn ceilings have asbestos?

• <div><p>No, not all popcorn ceilings have asbestos, but a vast majority do. The Environmental Protection Agency (EPA) banned its use in 1973, although it still may have been used up through the early ‘90s. But, in general, homes built or remodeled before the early ‘80s likely utilized materials with asbestos. That being said, a professional test is the only way to determine for sure.</p></div>

Where would asbestos be in my home?

• <div><p><a href="https://www.angi.com/articles/how-can-i-tell-if-house-has-asbestos.htm">Asbestos</a> can be found in many building materials, especially if the materials were installed more than 20 years ago. Asbestos-containing materials (ACM) can include:</p><ul><li><p>Acoustic ceiling tiles</p></li><li><p>Furnace insulation</p></li><li><p>Home appliances</p></li><li><p>Fire-retardant clothing</p></li><li><p>Cement pipe</p></li><li><p>Pipe insulation</p></li><li><p>Wall and ceiling insulation</p></li><li><p>Vehicle brake pads</p></li><li><p>Vinyl flooring</p></li><li><p>Sprayed acoustic ceilings</p></li><li><p>Stove insulation</p></li><li><p>Patching compounds</p></li><li><p>Textured paints</p></li><li><p>Roofing shingles</p></li><li><p>Siding</p></li></ul><p></p></div>

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Q: What magnification do you need to see asbestos fibers?

• <div><p>If you own a stereo microscope, you should be able to see the fibers. The stereo microscope often can perform magnification up to 50x. But unless you have experience viewing asbestos fibers, you may not know exactly what you are seeing. Some fibers are curly, while others are long and straight. Blue, brown, white, and gray colored fibers are all possible.</p></div>

Q: Does knob and tube wiring have asbestos?

• <div><p>Knob and tube wiring is an older type of electrical wiring that's no longer used and <a href="https://www.angi.com/articles/knob-and-tube-electrical-wiring-safe.htm">generally not considered safe</a>. However, some homes still have it, or may have a knob and tube wiring system that was incorrectly modified or rigged to work with a modern electrical system. Knob and tube wiring may contain asbestos insulation, but the only way to know is to have the material professionally tested.</p></div>

Q: What are the health risks if I’m exposed to asbestos tiles?

• <div><p>Damaged tiles can release asbestos fibers into the air. Anyone in the surrounding area who may inhale the fibers will have them settled in the lining of internal organs. Over time, it may lead to serious health conditions such as lung cancer and mesothelioma.</p><p>The only safe way to prevent these conditions is to avoid exposure to asbestos at all costs, even for a short period of time.</p></div>

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Verified Reviews for Percolation Testing pros in Ravalli County, MT

*The Angi rating for Percolation Testing companies in Ravalli County, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Percolation Testing needs.

*The HomeAdvisor rating for Percolation Testing companies in Ravalli County, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Percolation Testing needs.

Last update on June 25, 2025

Reviewed in June 2025
We bought our house in August 2024 and didn’t have the time to even think about our gutters with all of the other house projects we needed done. We had Tanner come out this spring and just expected a simple clean out…he meticulously cleaned and checked every inch to make sure things were in good...
The gutter guy of Montana llc
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Reviewed in December 2024
We originally had six companies come in and give us bids. We really liked Top Line , but decided to go with another company that was more established. When I told Jared our decision he was so polite and understanding about it. I then called our chosen company to check in. They had done nothing...
TopLine Exteriors, LLC
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Reviewed in September 2023
Iâ ve hired them to do another job, very satisfied with the job.
Rocking MT Excavation LLC
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Reviewed in June 2023
Clean, timely, and professional. Happy with the flooring.
DNA Wood Working LLC
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Reviewed in April 2023
They have done excellent work for us, we never had problem with them.
R & D Land Experts, LLC
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Reviewed in March 2023
This is too soon the snow is still on the ground. wait until they do the job, be patient. The estimator was very nice.
Heavy Duty Concrete and Pavers
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Reviewed in November 2022
Mark is very knowledgeable and very helpful when youâ re deciding on right woodstove for you.
Orca Fireplace, LLC
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Reviewed in July 2022
Very responsive and performance was more than I expected.
Mighty Dog Roofing of Western Montana
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Reviewed in July 2021
Very professional and detailed in his reports. His prices are amazing. I would hire him again for sure. I paid $160 MORE for a home inspection earlier this month through someone else and it wasnâ t nearly as detailed as this one.
Gunstock, LLC
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Reviewed in February 2021
Very responsive, Tim was wonderful, and great value for money
Jordan Solar and Electric
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Percolation Tests questions, answered by experts

If you own a stereo microscope, you should be able to see the fibers. The stereo microscope often can perform magnification up to 50x. But unless you have experience viewing asbestos fibers, you may not know exactly what you are seeing. Some fibers are curly, while others are long and straight. Blue, brown, white, and gray colored fibers are all possible.

No, not all popcorn ceilings have asbestos, but a vast majority do. The Environmental Protection Agency (EPA) banned its use in 1973, although it still may have been used up through the early ‘90s. But, in general, homes built or remodeled before the early ‘80s likely utilized materials with asbestos. That being said, a professional test is the only way to determine for sure.

Knob and tube wiring is an older type of electrical wiring that's no longer used and generally not considered safe. However, some homes still have it, or may have a knob and tube wiring system that was incorrectly modified or rigged to work with a modern electrical system. Knob and tube wiring may contain asbestos insulation, but the only way to know is to have the material professionally tested.

Asbestos can be found in many building materials, especially if the materials were installed more than 20 years ago. Asbestos-containing materials (ACM) can include:

Acoustic ceiling tiles
Furnace insulation
Home appliances
Fire-retardant clothing
Cement pipe
Pipe insulation
Wall and ceiling insulation
Vehicle brake pads
Vinyl flooring
Sprayed acoustic ceilings
Stove insulation
Patching compounds
Textured paints
Roofing shingles
Siding

Damaged tiles can release asbestos fibers into the air. Anyone in the surrounding area who may inhale the fibers will have them settled in the lining of internal organs. Over time, it may lead to serious health conditions such as lung cancer and mesothelioma.

The only safe way to prevent these conditions is to avoid exposure to asbestos at all costs, even for a short period of time.

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