Crawl Space Humidity Chart

If the humidity level of your crawl space is high the damp air from the crawl space will get into your home this leads will affect the quality.

Crawl space humidity chart. Crawl space humidity has been plaguing homes in north carolina and virginia since the first day they were built. While your crawlspace may not look as bad as the one in this picture the mechanism described above is still what is happening. According to experts up to 50 of air within the home can come from the crawl space.

You may need to do specific things to maintain your crawl space humidity in different seasons. As it does all organic material in your crawl space will be damaged including wooden floorboards and support beams. Crawl space humidity should generally remain at or below 55.

Ideally the level of relative humidity in your crawl space should be 55 on the high end. Typically however you can tell just by entering the space if the humidity feels high if the air feels wet that s your sign. In some extreme cases sections of the floor may even begin to.

You can measure relative humidity using a hygrometer analog or digital. Since his crawl space system was installed back in september he has been recording temperature and relative humidity in the crawl space in his house and outside. This is due to a phenomenon known as the stack effect.

Before you look for the ideal crawl space humidity level you should think about the right humidity in your house as a whole. Effects of high humidity in crawl space. Typically humans do best in humidity levels ranging from 30 60 with most people feeling most comfortable around 50 60.

It may also occur when the air inside the home is cooler than the air outside the home or that in the crawl space. The goal is to keep the humidity in the crawl space below the 70 where mold and mildew start to become a problem. As the humidity levels rise in crawl spaces moisture condensates on the surfaces leading to serious problems in your home.