He may take for granted what goes on during the business day and not think to mention that supplies frequently are delivered to different departments on carts with hard rubber wheels. Simply put, the more you know about a floor's history and use, from when it was installed to the time you're standing there looking at it, the better. So walk through the entire facility, be observant, and ask lots of questions. Regardless of whether the floor is concrete, wood, or another material, its initial preparation is the key factor. You can get away with more on walls than you can with floors, because of loading.
Floors take a lot more abuse.
You can't separate surface preparation from a successful job. Improper surface preparation accounts for most paint failures on floors. The rains came not long after the job was completed. The paint started coming off in sheets, and big bubbles had water running underneath them. Potential problems aren't always easy to see.