Ceiling brick texture is distorted I'm triyng to scale a brick texture for a ceiling.
It seems that the texture is stretched so I tried to fix it with the mapping Node, but that doesn't fix the problem. I also tried to change the UV and the mesh, but I can't make the bricks come up.

The roof texture is stretched, but the floor texture is fine.
Here is what Im triyng to achieve:


Here is the .blend file

Thanks
You UV map is distorted.
Simply unwrap your roof again and it will work.

Apply scale and rotation of your roof (Object &gt; Apply &gt; Rotation &amp; Scale)
Go UV &gt; Smart UV Project &gt; Conformal
Use Mapping node to scale and rotate the texture