Question: SK asks: Is there way to quantify the credits for a product using x % of recycled content would contribute to a LEED building?
Yes, review Materials & Resources (MR) Credit 4 – Recycled Content in the LEEDv.3 NC Reference Guide. The recycled content portion of a product is determined by weight.
The recycled content can be a fraction of the total product and is then calculated based on cost. 10% recycled content (based on cost) of the total value of all materials in the project gets you 1 LEED point, and 20% gets you 2 LEED points.