When new homes are built, they can be constructed with radon-resistant features. Adding these features during the construction process is much less expensive than adding radon-resistant features later on. Although codes vary from town to town, there are six basic components of radon-resistant new construction techniques:

  1. Install a gas permeable layer before the concrete slab is poured. This will help the passive radon system move the radon and other soil gas without restriction.
  2. Install a vapor barrier above the gas-permeable layer before the concrete slab is poured. 
  3. Install radon collection point. It is extremely important to create a radon collection point that will not be impaired when concrete is poured. 
  4. Seal and caulk radon entry points.  It is important to seal all visible cracks in the concrete floor, control joints, and cold joints (where the foundation meets the floor) using proper concrete caulk. 
  5. Install the radon vent pipe. When installing a passive radon system, it is important to install the radon vent pipe through an interior wall or flue chase.
  6. Install an electrical junction box within reachable distance of the radon vent pipe in the attic. This will allow for an electrical source in the event the system is activated.

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