Buildings aren't just buildings. They are where people learn, work, heal and live. So, make sure you're surfacing them with Unity's 1 3/4" thick Pave-Land Series. It offers the fire resistance, acoustical performance, wind testing and recycled content of 95% for the "green-light" in complaint formulation. And is also designed to help you meet new challenges in the "green" building standards with up to seven USGBC-LEED points and/or credits.
Here rubber "Boarder-Guards" by Unity where also used to help designate the area as a walkable surface. If you look carefully, you can see, this particular customer installed outlets every so often. A nice touch to this rooftop area with a view.