How to make Normal map work on custom meshes(Blender)

I have created models in Blender and am using them (No export to FBX)… I have created a material with a normal map and the bumps show on a cube and a sphere and every Unity mesh but My own road Mesh doesn’t show the details
84266-roadmatproblem.png

As shown in this Image the cube is pretty well bumped (or whatever) but the road is totally flat and they have the same material… Is there a special procedure to make the normal map show on the road…

Sorry I found out the mistake I had to unwrap the UVs…

XD