How Your Foundation Effects Radon Mitigation

Radon is a naturally occurring gas that derives from the uranium that can be found in most soil around the world. Therefore, radon is a common gas that can influence homeowners around the world, not just one area.

The gas can become heavily concentrated in homes, offices and schools making these environments quite toxic to those spending much of their time at any of the locations. Radon is actually the second leading cause of lung cancer and it can be avoided! With the help of a radon mitigation expert, your home, office or school can be properly tested for high levels of radon and these levels can be reduced back to a healthier and safer amount.

Although complete removal of radon is difficult, there are reduction systems that reduce the radon in your home by about 99 percent! Before going any further, let’s discuss how a foundation’s structure can influence which radon reduction system is chosen.

The Basement or Slab-on-grade Foundation

A radon mitigation expert will come to your home and investigate your home’s design. This overview will provide the necessary insight into choosing the most effective kind of radon reduction system.

Soil suction is typically used for a basement or slab-on-grade foundation. Although there are four kinds of soil suction, active subslab suction, subslab depressurization, is the most frequently utilized by experts for one reason: it’s pretty reliable!

How Subslab Suction Works

Your radon expert will decide how many suction pipes are necessary to install into the crushed rock or soil. This depends on the strength of the radon source and how easily air can push the radon in the crushed rock or soil under the slab.

Next, a radon vent will be connected to the suction pipes. This removes the gas from beneath the foundation and transplants it into the outside air – away from immediate entrance into the home. This fan also creates a negative pressure vacuum beneath the slab to make sure the air is being sucked in and pushed away from the foundation.

Here are the other three suction methods

Tile Suction: When a home has drain tiles that assist in pushing water to an area at a safe distance away from the foundation. By utilizing a tile suction method, radon can also be significantly reduced!

Sump Hole Suction: Many homes have sump pump systems to help waterproof their basement. A sump pump can also be used for a radon suction pipe.

Block Wall Suction: Similar to subslab suction, block wall suction reduces radon and depressurizes the block wall. This method can be combined with the subslab suction method for further efficiency.

The Crawl Space Foundation

Submembrane suction: The most effective crawl space radon reduction system. First, the floor should be covered by a high-density plastic sheet. Then a vent pipe and fan will draw the radon from beneath the sheet and disperse it outside. Another option is to depressurize the crawl space with a fan. This is hardly as effective and involves a potential increase in energy costs.

Passive Ventilation: This option could reduce soil suction and dilute radon beneath the home. With this version, vents will be opened or more vents will be installed, which could result in higher energy costs. Unfortunately, this is not as effective as the submembrane suction.

Active Ventilation: This form of radon reduction uses a fan to blow air through the crawl space, which could also lead to increased energy costs. Additionally, this reduction system is not as effective as the submembrane system.

Individually, the passive and active systems aren’t strong or efficient enough to satisfy a full radon reduction plan. However, together, these systems become quite satisfactory. This is shown through the effectiveness of the submembrane system, which is essentially the combination of the two other systems.

What’s the Cost?

At the end of the day, every homeowner wants to know the most beneficial system and its cost. As we’ve learned, a home’s foundation greatly impacts what kind of radon mitigation system is used to remove the radon. But, a homeowner can consider an average cost of about $ 1600. This means there are some that are more expensive and some that are less. This is the averaged cost.

Most systems will also increase the utility bills to some extent, so be mindful of that as well. Regardless, a price can’t be put on healthy and safe living.

To have your home inspected by a radon mitigation expert, contact National Radon Defense today! Receive all estimated costs and an understanding of the best method for your home!

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