Tristan,

Well said. What I got out of this is:

1. Not all PVCs are equal. We need to know more about the products we are using.

2. We need to weigh our options. LEED was never intended to be prescriptive. Its best use is when it is leveraged as a way to weigh our design, purchasing and operational decisions and to help, by providing a grading system, lead you to better ones.