How long does it take for asbestos to harm you?

• <div><p>According to the National Cancer Institute, asbestos-related diseases can take anywhere from <b>10 to 40 years</b> for symptoms to appear. The health risks increase with prolonged and heavier exposure. Risk factors also include:</p><ul><li><p>Amount of exposure</p></li><li><p>Chemical makeup, size, and shape of the asbestos fibers</p></li><li><p>Length of time a person is exposed to asbestos</p></li><li><p>Genetic factors </p></li><li><p>Source of exposure (direct exposure or secondhand exposure from someone directly exposed)</p></li></ul><p></p></div>

How do you identify asbestos tiles?

• <div><p>If you can locate building records, you may be able simply to see what type of tiles (or bonding agent) was used. Any flooring made between 1950 and 1989 more than likely contains asbestos. <a href="https://www.angi.com/articles/how-to-tell-if-you-have-asbestos-floor-tile.htm">Asbestos tiles</a> can also be slightly thicker than other tiles and often measure 9” x 9”, 12” x 12”, and 18” x 18. Black mastic was a commonly used adhesive that contains asbestos.</p></div>

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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: Can asbestos leak from a roof?

• <div><p>Asbestos itself does not typically leak from a roof. However, if an asbestos-containing roof is damaged or deteriorated, it can release asbestos fibers into the air. This can occur when the roof is disturbed, such as during maintenance or repairs, or due to weathering over time. Exposure to airborne asbestos fibers can be harmful to health, so it is important to address any damaged asbestos roofs promptly and safely.</p></div>

Q: Can asbestos be absorbed through the skin?

• <div><p>While asbestos can&rsquo;t be directly absorbed through the skin&mdash;the fibers are too big&mdash;skin contact can still produce symptoms. Contact dermatitis can flare up in sensitive individuals but in most cases, the danger from asbestos comes from inhaling the fibers, or dust, that is produced when asbestos is disturbed. If you touch asbestos by accident, immediately wash yourself and your clothes.</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

According to the National Cancer Institute, asbestos-related diseases can take anywhere from 10 to 40 years for symptoms to appear. The health risks increase with prolonged and heavier exposure. Risk factors also include:

Amount of exposure
Chemical makeup, size, and shape of the asbestos fibers
Length of time a person is exposed to asbestos
Genetic factors
Source of exposure (direct exposure or secondhand exposure from someone directly exposed)

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.

If you can locate building records, you may be able simply to see what type of tiles (or bonding agent) was used. Any flooring made between 1950 and 1989 more than likely contains asbestos. Asbestos tiles can also be slightly thicker than other tiles and often measure 9” x 9”, 12” x 12”, and 18” x 18. Black mastic was a commonly used adhesive that contains asbestos.

Asbestos itself does not typically leak from a roof. However, if an asbestos-containing roof is damaged or deteriorated, it can release asbestos fibers into the air. This can occur when the roof is disturbed, such as during maintenance or repairs, or due to weathering over time. Exposure to airborne asbestos fibers can be harmful to health, so it is important to address any damaged asbestos roofs promptly and safely.

While asbestos can’t be directly absorbed through the skin—the fibers are too big—skin contact can still produce symptoms. Contact dermatitis can flare up in sensitive individuals but in most cases, the danger from asbestos comes from inhaling the fibers, or dust, that is produced when asbestos is disturbed. If you touch asbestos by accident, immediately wash yourself and your clothes.

The Ravalli County, MT homeowners’ guide to percolation testing services

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