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Frequently Asked Questions

Does painting affect radon testing?

Because so many factors can influence a radon test, the length of the test matters. Short-term radon tests last between two and seven days. While they give you a snapshot of your radon levels over the course of a week, they may not paint the entire picture.

Does radon come from paint?

most paints, and building materials like gypsum board (sheetrock), concrete block, mortar, sheathing paper (tar paper), wood paneling, and most insulations. Radon is also fairly soluble in water and organic solvents.

What makes radon levels spike?

The radon levels of your home can become higher during rainstorms, and this is due to barometric pressure changes as well as changes in the soil beneath and around your home. Winter cold – radon levels tend to increase in the colder months due to the difference in temperature inside and outside of your home.

What gives off radon in a home?

Radon can enter a home any place it finds an opening where the house is in contact with the ground: cracks in foundation walls and in floor slabs, construction joints, gaps around service pipes, support posts, window casements, floor drains, sumps or cavities inside walls.

Can a house have too much radon in it?

Fact: Radon can be a problem in homes of all types: old homes, new homes, drafty homes, insulated homes, homes with basements, and homes without basements. Local geology, construction materials, and how the home was built are among the factors that can affect radon levels in homes.

How does wind affect radon levels in house?

Light rain and gentle winds will have little effect on your homes radon levels. High winds and severe storms will have a more significant impact of radon concentrations in your home. For example, when wind blows on the side of your house with the most doors/windows it creates more positive indoor pressure.

Is it safe to test for radon in your home?

Once there, radon sometimes becomes trapped and builds to dangerous levels. Since it has no color, odor or taste, radon testing is the only way to know if the radon levels in your home are safe or a cause for concern.

What should the outdoor radon level be in your home?

The U.S. EPA's radon action level is 4.0 pCi/L, the preferred concentration is 2.0 pCi/L, and the ideal level is the average outdoor level of 0.4 pCi/L, though it is challenging to mitigate below 2.0 pCi/L. Once you know your level, you can decide whether it's practical to install a radon mitigation system.

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