We have torn out the old floor in the basement. Joists on concrete, insulation, plastic, and chipboard. Everything had molded. Now we have a very uneven floor. Besides the fact that the slab is on ground with a lot of ground moisture, we also have a lot of ground radon about 800-900 bq/m3.
We have looked at both nivell and granab. Since the area is 100 sqm, it is a high cost. What other options are there?
Breaking up the floor is not an option, and leveling the floor with self-leveling compound is also very costly.
We are thinking of laying parquet down there.
Grateful for answers from people who have had similar problems.
We have looked at both nivell and granab. Since the area is 100 sqm, it is a high cost. What other options are there?
Breaking up the floor is not an option, and leveling the floor with self-leveling compound is also very costly.
We are thinking of laying parquet down there.
Grateful for answers from people who have had similar problems.
You cannot frame up with metal studs and come up with a solution for ventilation under the parquet? If you have a lot of moisture and high radon levels, it's good if you can get the air to circulate.
I haven't had similar problems, but if you have both a lot of moisture and a lot of radon, I don't think there's a cheap solution. I assume it's ground radon, and in that case, you probably don't want it in the house, so a ventilated floor like nivell is not a solution for that. If I understand correctly, you install a radon fan under the house in that case and direct the radon away from the foundation without bringing it into the house. However, nivell and similar solutions should take care of the moisture, so it might be a good solution for that part then.
An uneven concrete floor is normally leveled with self-leveling compound; if that's too expensive, you can cast more concrete, of course, but that method has drawbacks in terms of how quickly you can continue building, if I remember correctly.
Is the house properly drained? If it's not, that's where you should start.
An uneven concrete floor is normally leveled with self-leveling compound; if that's too expensive, you can cast more concrete, of course, but that method has drawbacks in terms of how quickly you can continue building, if I remember correctly.
Is the house properly drained? If it's not, that's where you should start.
Unfortunately, I am aware that there is no cheap solution. I hope someone will come up with a miracle solution..hehe
I have spoken with both GRANAB and Nivell, and both claim that their system reduces radon levels. Since the structure itself is sealed and ventilated, neither moisture nor radon should be able to penetrate. The house was drained in 2008, but not correctly. There are issues on several points.
I have spoken with both GRANAB and Nivell, and both claim that their system reduces radon levels. Since the structure itself is sealed and ventilated, neither moisture nor radon should be able to penetrate. The house was drained in 2008, but not correctly. There are issues on several points.
Sorry that I'm bad at miracles most of the things I've done on the houses we've built and renovated have ended up costing more than initially thought :O
I'm not quite sure how nivell works, so it's possible that it takes care of the radon as well, where does the moisture and radon ventilate out to then?
most of the things I've done on the houses we've built and renovated have ended up costing more than initially thought :OI'm not quite sure how nivell works, so it's possible that it takes care of the radon as well, where does the moisture and radon ventilate out to then?
Last edited: