Bruce Breedlove
07-26-2007, 03:10 PM
I ran across this very early (circa 1986) radon mitigation system today. There are a number of things here that do not meet today's standards.
The radon mitigation fan is located inside the living space. If the discharge pipe downstream of the fan has a hole or a crack radon would escape into the living space.
There are no gauges or indicators to show whether the mitigation system is operating properly.
There is no label identifying this as a radon mitigation system and not to disturb it. There is nothing identifying who installed the mitigation system and how to contact them. (This could be a homeowner-installed mitigation system.)
The mitigation system discharges 18" above grade below an operable window. So the radon this mitigation system collects and expels outside can now reenter the house through the open window.
Apparently the owner has operated the mitigation system only every-so-often (rather than constantly) to "flush out" the radon from the house.
I am doing a radon & radon decay products test to see how effective this mitigation system is. The mitigation fan was noisy and, being 22 years old, probably needs to be replaced.
I know, I know. Radon is harmless. But that is for another thread.
The radon mitigation fan is located inside the living space. If the discharge pipe downstream of the fan has a hole or a crack radon would escape into the living space.
There are no gauges or indicators to show whether the mitigation system is operating properly.
There is no label identifying this as a radon mitigation system and not to disturb it. There is nothing identifying who installed the mitigation system and how to contact them. (This could be a homeowner-installed mitigation system.)
The mitigation system discharges 18" above grade below an operable window. So the radon this mitigation system collects and expels outside can now reenter the house through the open window.
Apparently the owner has operated the mitigation system only every-so-often (rather than constantly) to "flush out" the radon from the house.
I am doing a radon & radon decay products test to see how effective this mitigation system is. The mitigation fan was noisy and, being 22 years old, probably needs to be replaced.
I know, I know. Radon is harmless. But that is for another thread.