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RADON AND PRESSURE DIFFERENTIALS
By RMAdmin
| Published January12,2022
Reza Hosseini , PhD – Managing Director at RadonMarket , R & D Manager & NRPP MFM Certified Radon Professional at Nitonsrl
There are three main forces that cause Radon laden soil gas to enter buildings . We learned from the previous articles thatt these forces are :
✅Stack effect or chimney effects ,
✅Soil pressure , and , ✅HVAC systems .
Whether it is natural , like the stack effect , or introduced to the building by an unbalanced HVAC system , these forces change the balance and create pressure differentials between the outside air and the inside air . The pressure differentials between outside and inside then define the behavior of soil gas entry into the house . Hence we can say that the mechanism of Radon entry is all about pressure differentials .
In this number of RadonMarke et Mag , we examine this topic in more detail and see how the pressure differentials are measured . We could have three conditions for pressure differentials . The building could be in positive , negative , or neutral pressure with respect to the outside . Letʼs start with a neutral pressure condition .