today we can learn how to add a rough grunge texture in Photoshop open up your Explorer or finder drag-and-drop the texture over the canvas and then adjust it select the texture layer and then press ctrl or command J twice this makes three copies select the first one and then change the blend mode to multiply double-click on the right-hand side of the layer and then hold the alt or option click on this slider at the bottom right and then take the half to the left hit OK now select the second one change the blend mode to screen double click on the right-hand side and do the opposite hold the alt or option click on the slider take the half to the right select the first one on the top press ctrl or command I to invert it and then change the blend mode to screen now you might find decrease the opacity to something like 25 and you can also adjust it press ctrl or command T it ok I rotate it if you won't do it just the size and it's done so that's how to easily add a grunge texture in Photoshop
How To Add Grunge Textures in Photoshop: Step 1: Drag & Drop Grunge Texture PNG on top of image in Photoshop. Scale down and reposition to desire. Step 2: Change the blending mode or layer style using color overlay to personal preference.
What is grunge texture Photoshop?
To make your work smooth, FixThePhoto is glad to present free grunge texture Photoshop - dark, dirty, old, and gloomy effect. This grunge texture can help emphasize the subject of your photography and create a powerful atmosphere. The most versatile of the free grunge textures, it can become a nice background or decorate any design

If you have any doubts, Please let me know :)