Preventive Measures for Existing Houses

 
 
  

Prevent radon entry 

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Use sub-slab depressurization technique

 

Use mechanical barriers 

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Coatings

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Membranes

  

Install planned mechanical systems 

  • Supply fresh air to reduce radon by dilution

  • Control pressure relationships to reduce soil-air entry

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    Treat water supply 

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    Aeration

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    Granular activated carbon

     

     
     

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