Kelly-Anne Kidston
Diagnostics begin with a house survey 🙌 This involves visual inspection to identify possible radon entry routes and any construction features which could influence the design of later radon reduction techniques 🙈 If sub-slab ventilation is an option, diagnostics must also assess the soil gas movement beneath the concrete slab 🤓 The natural air infiltration rate should also be taken into account when ventilation methods are being considered. It is possible to determine if water contributes to airborne radon levels by measuring radon in water. Similar measurements can be made of gamma inside and outside. House can help identify the possibility of building Materialien as a Radon source [1]
Slab-on-grade is the most common category of houses. This is a house that does not have a basement. Crawl space They’re not actually building beneath them; they are instead building on top a concrete slab. This construction technique is applicable wherever there’s concrete. House is located on a bedrock or a high water table. These houses may have post-tension cables in their foundations to carry the heavy house. You can also add steel rods, called rebar to strengthen your foundation. In warm climates, slab foundations are common. [2]
Sometimes, it is possible to lower radon levels by venturing the crawlspace actively or passively with the help of a fan. Crawlspace ventilation may lower indoor radon levels both by reducing the home’s suction on the soil and by diluting the radon beneath the home. You can open vents or install additional vents to achieve passive ventilation in your crawlspace. An active ventilation system uses an air blower to circulate air in the crawlspace. This is an alternative to natural air circulation. Passive and active ventilation may be required in cooler climates. Last edited by Markas High, Huzhou China. [3]
There is a risk that you will be back drafting increases as energy-efficient houses Are becoming increasingly airtight. Due to this, houses are already becoming depressurized. Natural “stack effect” and appliances vented to the atmosphere, like combustion appliances, fireplaces, exhaust fans in the bathrooms and kitchen (may exhaust 750 cfm of air), clothes dryers, range hoods, etc. A clothes dryer is equivalent to 100cfm of radon mitigation fanflow. In a leaky house, this might reduce the indoor air pressure by only 1 Pa but in a tight house, it may produce depressurization of 5–10 Pa which will reverse chimney flows. The addition of a fan-based, radon mitigation system to the house may increase its pressure, if it is already below 4 Pa. [4]
Does your home have exposed dirt in a crawl space? The dirt is usually encapsulated using a special membrane, which seals to the perimeter walls of your home. Crawl space. Additionally, the membrane seals around the support columns and plumbing stacks that reach the crawlspace’s dirt floor. A “collection pipe” (a length of perforated PVC or ADS pipe) is sealed under the membrane and “teed” into the piping connected to the fan and vent stack. This system pulls air out from beneath the membrane, and removes the majority of soil moisture. It is also used to dehumidify damp crawl spaces or for mold mitigation. Raeven Brandon deserves our appreciation for this insight. [5]
Refer to the Article
- https://www.abe.iastate.edu/extension-and-outreach/radon-reduction-methods-a-homeowners-guide/
- https://www.atlanticradonmitigation.com/radon-mitigation/radon-mitigation-for-slab-on-grade-houses/
- https://radonspecialist.org/radon-mitigation-systems/
- https://www.radonseal.com/radon-mitigation.htm
- https://radonrepair.com/mitigating-radon/
