Hello, I am trying to build a dungeon
I made some objects and import to UE4
when I take a look of them, there is a object looks like it have a high reflection, and just that object only
even look at the dark side, still so bright
here are the other objects, and i create a plane to display the material of the wall
the textures i used were export form the “urban materials package”
those walls were using the same textures, just different UV map
i tried to add the roughness map of my material
and it seems like the object got wet
i hope you know what i am saying, i am not a native english speaker
i really want how to fix it , thanks 
I’m not sure why it looks the way it does, but the texture sample you connected to roughness is wrong.
the roughness/ specular/ and AO maps are probably all packed into the rgb of the texture.
hm… sorry, what the different? I’m still a newbie of UE4.
The tutorials I saw are just link the textures to the material node.
i found the problem myself, there is something wrong of my model.
after i rebuilded the model, the problem is solve
should look something like the pic I’ll link below, except this is a metal material and not brick so your metal value is just 0.
https://docs.substance3d.com/spdoc/files/144998459/144998458/1/1467147159592/ue3.png
here’s a tutorial on what i’m talking about.
i edit my material like your pic using R & B channels. It looks similar as no link of roughness map. Just a little bit darker.
