The owner of three buildings valued at $48.5 million, totaling 341,551 sq. ft. and built in the '80s and '90's utilized a $480,000 PACE assessment to to install a new cool roof and to upgrade their lighting to low wattage metal halide fixtures. This made the building more competitive with newer construction. The single ply PVC roofing membrane meets the USGBC's LEED program, Green Globes and Energy Star program requirements. PACENow Case Study.