I recently installed a commercial job that required the use of FRP. Since I am a tile installer by trade I really wasn't sure what to charge the contractor. I figured that I just would charge for time cause he supplied the materials. The materials are called Altro which is very similar in appearance to FRP. The only tough part is that we had to use a 2 part epoxy adhesive to hold it to the wall and their joint trims as well. I usually charge square foot prices on my tile installations so any help would be greatly appreciated.