如何在爬行空间中减少氡?
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How do you do Radon mitigation when with insulating and ventilating a crawlspace?
I'm in Springfield, MO. This single story house was built in 1906, still has the stone foundation and below ground is about 25% basement and 75% crawl space. It was flipped last year before I bought it. A radon test in the basement = 4.4. I covered the sump hole with lexan (nice fit but not air tight) and put in a 6" PVC exhaust pipe with an inline exhaust fan to the outside. I'm waiting for the results of a second radon test.
我在地基的缝隙中使用了罐装喷雾泡沫和钢棉。我开始在粉底内侧使用Reflectix(重量轻，便于运输和处理)。我买了，但还没有安装蒸汽屏障。爬行的地方有很多杂物，房子的挡板从来没有清理过。我买了一个连接在湿润器上的爬行空间通风口电风扇，但当天气变冷时就把它关掉并盖上通风口。
I don't know if I should continue with trying to encapsulate the crawl space (will it help reduce radon?) and get a good dehumidifier or just ventilate. What's the best/right path? I'm a 66 yr old female DIY'er with no experience in these matters.
4pci /L的氡读数不是很高，但这是EPA建议采取措施降低它的点。你把地下室当作生活空间吗?阅读是放在楼下还是楼上有条件的地方?First have a look here on the best ways to mitigate radon gas in homes –
How to remove radon gas from basements and crawl spaces
Some of the radon mitigation techniques could be a DIY solution, particularly having a radon evacuation stack in the floor and covering it with a poly membrane, you will see more about it in the page above. Even that as a DIY technique would require some experience to vent it out properly. That step alone could easily drop your radon to safer levels.
不建议通风的爬行空间，因为在夏季，热潮湿的空气可能会凝结在凉爽的表面，从而带来潜在的风险。如果是我的话，我可能也会这么做，以降低氡水平，但一旦你采取了其他缓解措施，最好不要通风，除非你在地下室有专门的HRV或ERV。