Photo 5 shows the application of adhesive while the floor covering is being installed in a kitchen application. The mechanics are doing a couple very smart installation techniques that we can all learn from. The first: mixing the epoxy adhesive on a moveable board; mixing a two-part adhesive on the substrate you are adhering to is only asking for problems.
If you believe that the seam in any floor covering is the weakest point, then perfecting your cord welding skills will all but eliminate your problems with them. One of the biggest problems with commercial applications, next to poor maintenance, are the drain details. Photos 7 and 8 show two different types, a trough type drain and a sink or small tube drain. The most important step in a properly installed drain, in a sheet goods application, is getting a good seal between the floor covering, the pinch ring and the drain housing. I have seen many a commercial job ruined because of a lack of effective drain detail.
Without a good seal, water is allowed to travel between the floor covering and the substrate, affecting the adhesive bond, leading to a failure of the floor covering. Putting a bead of silicone caulk at the edge of the drain ring as your only seal will not work in the long term. If you are working with one of these specialty type floor coverings and are not familiar with it, then: You Make The Call!
And get the installation instructions to ensure that you have a successful installation. Every installation that you do is left with your signature. Do them with pride and the quality will speak for you and your ability. Again, thanks for reading and have a great day!