Inukshuk
Rising Sun Member
Sure!
I have had the house open all day - 68 deg! - and it went to 0.4
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Anyone with expertise mitigating radon gas?
- Thread starter Corbet
- Start date
I have had the house open all day - 68 deg! - and it went to 0.4
I bought an Airthings Corentium Home 2
I know you have to leave it for 30 days, but thought I would spot check some locations
10 days in the basement on the pool Table. Feb 8-18
No idea why the spikes. Indoor Humidity steady between 30-34%. It has been windy outside last few days
Moved it upstairs onto a bookcase in my office and will leave it there for 7 days
I do have a Radom mitigation system that is 20 years old. The gauge is in a place you can't see in the garage unless I pull the fridge out. I will have to get a look at that
I know you have to leave it for 30 days, but thought I would spot check some locations
10 days in the basement on the pool Table. Feb 8-18
No idea why the spikes. Indoor Humidity steady between 30-34%. It has been windy outside last few days
Moved it upstairs onto a bookcase in my office and will leave it there for 7 days
I do have a Radom mitigation system that is 20 years old. The gauge is in a place you can't see in the garage unless I pull the fridge out. I will have to get a look at that
Windy days can give you negative pressure in your house in relation to outside pressure depending on roof ventilation. We used to see the water drop in the toilets on windy days at our last house.
We have had the same sensor, unmoved for 43 days. The amount it swings is pretty wild. We can't tie it to wind, barometric pressure, diurnal patterns, moisture, anything... All of those things seem to move the needle slightly, but the values just seem to have a mind of thier own
I no idea if any of it is accurate. I also notice that it has climbed steadily over that time, which I dislike.
Our levels are generally lower than what you've shown - we do have a mitigation system, a very basic one, installed.
I no idea if any of it is accurate. I also notice that it has climbed steadily over that time, which I dislike.
Our levels are generally lower than what you've shown - we do have a mitigation system, a very basic one, installed.
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In my office it dropped down over a day and now is between 2.3 to 2.5 over the last 3 hrs. I know 3 hrs isnt anything to count on. I will leave it here for a few weeks to see how it trends and then likely move someplace else on our main floor (Ranch house)
I took a look at the gauge on my Radon mitigation system. It measures vaccum and not Radon. I read between 0.5 and 1.0 shows the system is working. It shows about 1.1
Circling back. I filled the hole with expanding spray foam. Had a guy come and install a vent fan. Monitor is currently reading 1.02 so I'm pretty happy with the results. THe vent installed was $1700. I didn't shop it, just called a referral from a friend and made it happen.
To get the foam way under the tub I added some aquarium tubbing to the end of the foam can nozzle, then tapped it to an old archery arrow so I could direct the foam more directly. I used the window/door stuff that does not expand as much. I figured that would be easier to control placement. I was able to start the flow below the concrete slab and fill it partially up. Not sure if the max expansion stuff would have been any better? Once I covered the hole I went back with another can before it set up and injected more in an effort to increase the foam density.
Not sure f any of my “science” methods made any real difference but the readings are now acceptable so for now whatever.
To get the foam way under the tub I added some aquarium tubbing to the end of the foam can nozzle, then tapped it to an old archery arrow so I could direct the foam more directly. I used the window/door stuff that does not expand as much. I figured that would be easier to control placement. I was able to start the flow below the concrete slab and fill it partially up. Not sure if the max expansion stuff would have been any better? Once I covered the hole I went back with another can before it set up and injected more in an effort to increase the foam density.
Not sure f any of my “science” methods made any real difference but the readings are now acceptable so for now whatever.
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