Radon Solid Floors

Sumps work best under solid floors and under suspended floors if the ground is covered with concrete or a membrane.

Radon solid floors. But you never go into the basement. The main source of indoor radon gas infiltration is from soil into buildings. Radon sump an active radon sump fitted with a fan is the most effective way to reduce indoor radon levels. Basement epoxy coatings sealing against radon md va.

Radon sumps an active radon sump fitted with a fan is the best way to reduce indoor radon levels. And it s typically highest in the basement then it gets far less on the first floor second floor and so on. Stronghold floors installs epoxy basement coatings which can be combined with fan based system to reduce radon levels in homes located in md pa va. Polyethylene barriers below slab floors serve two purposes to prevent moisture from wicking into concrete and disbursing it into homes also to create a radon barrier.

Having a cement floor in the basement can reduce radon gas infiltration but only to the degree that the floor is solid nonporous and crack free. Under floor vents can become blocked and will no longer ventilate the under floor space. For radon levels above 1200 bq m 3 it is often the only solution. That doesn t necessarily mean you are home free.

Radon sumps sometimes the vent leads only to the wall cavity and not to the under floor space. Occasionally passive sumps without a fan may reduce radon levels. Although principally appropriate for solid floors a sump can be used with a suspended timber floor if there is a layer of concrete or a membrane covering the soil beneath it. A water sump hole or drainage system can be a welcome mat for radon.

Sumps work effectively under solid floors and under suspended floors if the ground is covered with concrete or a membrane. Increased levels of radon have been identified in every state. Due to radon progeny s charged state and solid nature they rapidly attach to most surfaces they encounter including airborne particles e g dust walls floors ventilation equipment and clothing. Radon gas occurs naturally in the soil a result of decomposing uranium in the ground.

If there are not any vents outside it may be a solid floor. See our fact sheet. Because radon is a gas that emits from the soil and typically it gets into the home at the basement level through concrete block walls and the concrete floor and the gaps around it builds up in the basement. Occasionally passive sumps without a fan may reduce radon levels.