It is difficult to guess as each application is different. However I
would suggest that when it is done properly it is almost always very
effective. The trick is to have someone who is knowledgeable and honest do
Each type has its own success ratio.
I found this, http://www.epa.gov/radon/pubs/consguid.html#installtable
it says subslab suction, low range it only 50% so you can get down to
4.85, which is still over the 4 action limit. So worse case it seems
that subslab suction will have to be used in conjunction with another
technique like sealing cracks and seams.
Good luck, please keep us up todate to yoru success.
tom @ www.NoCostAds.com
Talk to your neighbors. Find out who they recommend, check with the
BBB for any potential contractors, and read the EPA site. I belive it
has suggestions about getting guarentees about a reduction level.
9.7 where. If that's in the basement, you might have success. It that
on the first floor, then wow.
Age of house plays a factor, too. Newer ones are tighter.
You don't happen to have a drainage system under your slab, do you?
Do you have a basement or a crawl space or what?
The test was done in a basement, if the sellers didn't move the
canister. I am really nervous about this especially because I have a
four year old, and we are making a choice to maybe move into this
house. The house is 18 years old, and yes it does have a drainage
system under the slab.
You need professional help :-))
If might be able to install a sub-soil abatement system. You
effectively venilate the subsoil. You hook up a pump and pump air into
the drainage field at various locations. Then you try to go to the
other side and suck out air. But you need a pretty good, rough stone
bed under the house. See if you can find someone who knows how to
handle it. Then you seal the basement walls, too. You also have to
examine your make-up air. If your dryer is on the first floor and you
turn it on, where is the air coming from. You don't want to draw up
basement air and bring that into the living space. Same for furnace
(esp. forced air), air conditioning, etc. etc.
You might also be able to ventilate the heck out of the basement and
just keep it from coming up. Might work in warmer climates but not in
If you can get a good abatement plan, you'll be fine. But it'll cost
money, so get an estimate before you buy. You'll need to talk to the
seller. That's the GOOD news.
The bad news is that radon comes from underground rock formations. If
you have it in one area, you'll probably have it in other areas that
are nearby. So if you want to live in that area, you'll have to deal
I don't want to be all gloom and doom. I just think you should examine
it before you decide. Professional help is available.
So, if you're not in love with the house and not willing to invest some
time (and maybe money) to see if this house is feasible, cut your
losses and move on. If you are, it makes sense to do your homework
BEFORE you buy.
Breathe deeply and put your emotions about homebuying aside, if you are
buying. Spend the time (and money) to get the reports and information
you need before you buy. If a report comes back bad, don't be afraid
to walk from a just because you've invested money in it. That's part
of the process. But if the reports are good, you know you're making a
Uless yor living in a sealed basement its not too bad. The requirement
for testing is house closed up.
normal living going in and out etc etc keeps levels down.
incidently in a sub surface system they just pull vacuumn in the
drainage system, no new air is added.
The idea is radon moves to where the lowest pressure is, the vacuumned
drain system. the basement being higher pressure gas doesnt move there.
oddly enough the lifetime risk for non smokers is really low, like one
additional lung cancer in 100,000 people or more.
but for smokers the radon is terrible combo with smoking. like 10 more
cases in a 100,000
of course smokers really dont care about their health or that of people
ALL radon mitigation efforts should include crack sealing etc as part
of the larger job of reducing radon/
Hows the condition of the home eyond this issue?
Remember ususaally its the SELLERS resposiblity to fix the radon and
have it retested before sale
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