The interior walls of our house consist of so-called blue concrete/lightweight concrete. We are currently renovating the hallway, but eventually, all rooms will be redone. Now to the question. If we plan to decontaminate the entire house for radon, does it make any difference in the decontamination costs if we replace some of the interior walls with something else, so that fewer walls contain radon? And does it become cheaper if you replace certain walls so that not all walls need to be decontaminated? Spontaneously, I think that the radon level must decrease the more walls you replace, which leads to less expensive decontamination. But does the cost of wall replacement outweigh what you save on decontamination?
GRATEFUL FOR ANSWER!
GRATEFUL FOR ANSWER!
What you get if you replace the walls is also less gamma radiation. That won't go away if you carry out radon remediation in the usual way with ventilation. Have you obtained quotes for the remediation? If so, they should have been able to estimate the contribution from the interior walls and assess whether a less extensive remediation would suffice if they were replaced. Then it can be noted that it's no small task to replace all the interior walls. Electrical installations, kitchen fittings, bathrooms, etc. A lot is affected.
Do you have exterior walls in blåbetong as well? What are the other sources of radon?
Do you have exterior walls in blåbetong as well? What are the other sources of radon?
The radon is primarily in the outer walls. Until today, I thought we had blue concrete in the inner walls too, but that wasn't the case. I understand exactly what you mean, but since we're going to completely renovate the whole house anyway, it wouldn't have been so serious for us to tear down all the walls. The remediation costs are to be determined in the coming days, but we have received a preliminary figure of close to 100,000 SEK. Now I just hope it can be resolved smoothly and that it doesn't cost a fortune!