![]() Homes built with crawl spaces are directly connected to the soil and create a pathway for radon to enter the home. Homes built slab-on-grade have many openings that allow radon to enter, similar to a basement. Taller homes add potential for a greater stack effect. This can drive soil gas into the home as make-up air enters the lower part of the house.Īny home can have a radon problem, no matter the type of foundation.Ī basement provides a large surface area in contact with the soil, and radon can enter through different pathways. Vacuum Effect - Appliances (water heaters, fireplaces, clothes dryers, older furnaces, etc.) and exhaust fans remove air from the home. Make-up air enters the lower part of the home, and some make-up air comes from the soil.ĭown Wind Draft Effect - Strong winds can blow over the top of the home, pushing and pulling air into and out of the house. Stack effect - Warm air rises to the upper portion of the home and is lost to the outside air. There are three main components contributing to air pressure changes in the home that can bring in radon gas. Some of this replacement air comes from the soil. This pressure difference creates a vacuum and outside air can be pulled into the home through openings like doors and windows. Homes commonly operate at a lower (negative) pressure compared to the outside air. (Click on image above to enlarge) Air pressure
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |