During severe weather events like tornadoes, the bathtub is often recommended as a place of shelter primarily because of its construction and location within a home.
Bathtubs, particularly older cast-iron or heavy fiberglass models, are typically anchored directly into the ground or foundation of the house through their plumbing connections. This strong anchoring makes them much more stable and less likely to be swept away or destroyed compared to other parts of the house or furniture.
According to safety information:
- The bathtub and commode are anchored directly into the ground, and sometimes are the only thing left in place after the tornado.
- Getting into the bathtub with a couch cushion over you gives you protection on all sides, as well as an extra anchor to the foundation.
This means that while other parts of the house might be destroyed, the bathtub's sturdy connection to the foundation provides a stable point of refuge. The solid sides of the tub offer some level of protection from flying debris, which is a major hazard during a tornado. Adding protection like a mattress, sleeping bag, or heavy blanket over yourself while in the tub can further shield you from falling objects or shattered glass.
Key Reasons for Bathtub Safety
Here's a breakdown of why a bathtub is considered a relatively safe spot during a tornado, based on structural properties:
- Strong Anchoring: As mentioned, they are tied into the foundation via plumbing. This provides crucial stability against high winds and structural collapse.
- Durability: Bathtubs are generally constructed from robust materials designed to hold water and support significant weight.
- Location: Often found in interior bathrooms, which typically lack windows, reducing the risk of injury from broken glass. Interior rooms also benefit from the buffering effect of exterior walls.
- Protection from Debris: The sides of the tub offer a basic shield against some flying objects. Adding a protective covering over yourself significantly enhances this.
For these reasons, hunkering down in a bathtub in an interior bathroom, covering yourself with protective material, is a widely recommended safety measure when a basement or underground shelter is not available.
