Sofia Martinez
Radon is a harmful gas that can cause serious respiratory health problems. It is important to test your home for radon and use a radon mitigation system to protect yourself from this hazardous gas. One way to do this is by using plastic sheeting or a vapor retarder to inhibit radon from entering your home. The US EPA recommends a minimum of 6-mil-thick polyethylene sheeting, which can be placed under concrete floor slabs or over gravel. However, the thicker the plastic sheeting, the better it is at preventing radon from seeping through. For example, ordinary 6-mil polyethylene will stop radon as long as it has no holes or rips, but thicker polyethylene, such as 10-mil or 20-mil, is less likely to get punctured during installation and will provide better protection against radon.
| Characteristics | Values |
|---|---|
| Thickness | 6 ml is the standard, but thicker is better if it will be exposed to foot traffic. |
| Material | Polyethylene |
| Installation location | Beneath concrete floor slabs or to cover exposed ground in crawl spaces |
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What You'll Learn
A 6ml plastic sheeting is adequate for radon mitigation
Radon is a radioactive gas that occurs naturally from the decomposition of uranium deposits in the ground. It is the leading cause of lung cancer for non-smokers and is responsible for around 20,000 lung cancer deaths each year in the United States alone. As radon is odourless and invisible, the only way to know if your home has high levels of radon is to test for it.
To protect against radon, homeowners and contractors often use 6ml plastic sheeting from local hardware stores as a radon barrier. This plastic sheeting is used in conjunction with a radon mitigation system that blows the gas away from the home. 6ml polyethylene plastic is adequate to stop water vapour and radon, as long as it has no holes or rips. This thickness of plastic sheeting is often placed under poured concrete, which would block any pin-holes that might otherwise occur.
However, it is important to note that not all crawl space vapor barriers are equal, and some plastic sheeting liners are not meant to block out any type of gas. Over time, radon gas can build up in a home if it is not being vented out. Therefore, when purchasing plastic sheeting, it is important to ask for the Radon Diffusion Efficient test data to ensure that the product has been tested to block out radon.
In addition to plastic sheeting, there are other methods to prevent radon from entering a home. These include using gravel, vent pipes, and sealing openings, cracks, and crevices in the foundation and walls.
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Thicker plastic sheeting is better for areas that are walked on
The thickness of plastic sheeting is a critical factor that impacts its performance and suitability for different applications. While thinner plastic sheeting is more flexible and easier to handle, thicker plastic sheeting offers several advantages, especially in areas that are walked on.
Thicker plastic sheeting is generally more robust and durable, providing increased resistance to wear and tear. This is crucial in areas with frequent foot traffic, as thicker sheets can better withstand the additional pressure and weight. The added thickness also makes the material more rigid, providing greater structural support for these areas.
Additionally, thicker plastic sheeting offers improved insulation properties and serves as a more effective barrier against moisture, gases, and chemicals. This is particularly relevant for radon mitigation, as thicker sheets can help prevent the dangerous gas from entering homes and causing severe respiratory health issues. The US EPA, Surgeon General, American Lung Association, American Medical Association, and National Safety Council all recommend testing homes for radon and taking appropriate measures to reduce exposure.
When choosing plastic sheeting for areas that are walked on, it is essential to consider the specific requirements of the application. Thicker sheets, typically those above 10 mils, provide long-term ruggedness and reduce the likelihood of punctures and tears. However, thicker plastic can be more expensive and may be less manageable, so it is important to balance durability and functionality with cost and usability considerations.
In summary, thicker plastic sheeting is advantageous for areas that are walked on due to its increased durability, structural support, and insulation properties. By selecting the appropriate thickness and considering the specific application requirements, individuals can ensure effective radon mitigation and protect their health and homes.
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Polyethylene should be 10mls or thicker for long-term ruggedness
Radon is a hazardous, invisible, and odourless gas that is the leading cause of lung cancer for non-smokers. It is responsible for hazardous levels in one out of 15 American homes.
To protect against radon, plastic sheeting is often used as a radon vapor barrier. This is often placed over a layer of gravel under the foundation of a home. The thickness of plastic sheeting is measured in "mils", with 1 mil equalling one-thousandth of an inch or 0.001 inch. The thicker the plastic, the more polyethylene is needed.
For long-term ruggedness, polyethylene should be 10 mils or thicker. This is because thicker polyethylene is less likely to get holes when installed. While ordinary 6-mil polyethylene can stop water vapour and radon, it is more prone to tearing.
For exposed polyethylene, a thicker product like a 20-mil pool liner is recommended. Additionally, the quality of the polyethylene should be considered. "Virgin" polyethylene is pure without regrind mixed in, making it more durable than recycled plastic sheeting of the same thickness.
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A 20ml pool liner is a tough product for exposed poly
Radon is a harmful, invisible, and odourless gas that is the leading cause of lung cancer for non-smokers. It is important to take steps to prevent radon from entering your home, as it can cause serious respiratory health issues and even lead to loss of life. One way to protect against radon is to use plastic sheeting or a vapour barrier.
The thickness of plastic sheeting or a vapour barrier needed to block radon depends on where it is being installed. For instance, if the plastic sheeting is going over gravel and will be walked on, a thicker option is recommended. A 6-mil polyethylene plastic sheeting is sufficient if it is going to be under poured concrete, but for other applications, a thicker option is recommended.
A 20-mil pool liner is a suitable option for exposed poly applications. This thickness provides sufficient long-term ruggedness and toughness to withstand installation and use. The thicker the polyethylene, the less likely it will get holes when installed. A 20-mil pool liner can also serve as a tough vapour barrier to block water vapour and radon, as long as it remains intact without any holes or rips.
In addition to thickness, it is important to consider the material of the plastic sheeting or liner. Some options include polyethylene, EPDM, PVC, or HDPE. Each material has varying levels of strength, durability, and flexibility. For example, EPDM has high puncture and tear resistance, while polyethylene is known for its toughness and long-term ruggedness.
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The EPA recommends a minimum of 6ml thick polyethylene sheeting
Radon is a harmful, invisible, and odourless gas that is the leading cause of lung cancer for non-smokers. It is the second leading cause of lung cancer in the United States. The U.S. Surgeon General, American Lung Association, American Medical Association, National Safety Council, and the EPA recommend testing your home for radon. Testing is the only way to know your home's radon levels, as there are no immediate symptoms that indicate its presence.
To reduce radon levels in your home, you can use plastic sheeting, also known as crawl space vapour barriers. The EPA recommends a minimum of 6ml thick polyethylene sheeting as a soil-gas retardant beneath concrete floor slabs or to cover exposed ground in crawl spaces. This thickness is also specified by the American Association of Radon Scientists and Technologists (AARST). Most cities and states mirror this requirement in their building codes.
While 6ml polyethylene sheeting is sufficient to block radon if it is going to be under poured concrete, thicker plastic sheeting is recommended for applications where it will be exposed. For instance, if the sheeting is placed over gravel and will be walked or crawled on, a thickness of at least 10ml is recommended for long-term ruggedness.
To ensure the effectiveness of the vapour barrier, it is important to ensure that the polyethylene sheeting has no holes or rips, as these can compromise its ability to block radon and water vapour.
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Frequently asked questions
6 ML of polyethylene plastic sheeting is the minimum thickness recommended by the EPA and AARST. However, thicker plastic sheeting, such as 10 ML or 20 ML, is more durable and better suited for crawl spaces that will be walked or crawled on.
Radon is a harmful and invisible gas that is the leading cause of lung cancer for non-smokers. It is important to use radon plastic sheeting to prevent radon from entering your home and causing health issues.
In addition to using radon plastic sheeting, you can take other measures such as installing a gravel layer, a vent pipe, and sealing all openings, cracks, and crevices in the concrete foundation and walls.
The only way to know if your home has high levels of radon is to test for it. The EPA recommends testing your home for radon to ensure the safety of your living environment.
The type of plastic sheeting recommended for radon protection is polyethylene. Ordinary 6-mil polyethylene will stop water vapour and radon, but thicker polyethylene is more durable and less likely to get holes.
