Why am I getting wet?

I just finished building a wooden house with upgraded walls. It started to rain outside and then a notification said I am wet. Why is this ? The ceiling, walls, and flooring are all made of upgraded wooden frame.


To stop getting wet, you must either be in a fully-enclosed room or at least 5 blocks away from a block that is getting wet. To start drying, your core temperature must be above 40°F.

If your room has a roof but is small and has an open door frame, that may be the cause.