Does anyone have info on the possible negative environmental effects of letting architectural copper naturally weather? I have heard that the stormwater runoff from copper roofs can be toxic to the fishies but the internet yields conflicting points of view on the whole thing.
I'd be grateful for someone's perspective if anyone has an informed opinion as we are considering copper shingles for an upcoming project. It's nice that they're almost 100% recycled (and pretty recyclable as siding/roofing goes), but I'm worried about the watershed. Thanks!

It's fantastic. I just wish we had some hint or clue about the pricing, and some way to buy panels directly from the manufacturer. The copper's probably $10/sq foot, but how much does the waterjet cutting add to the cost? Would it be cheaper or more expensive to have a local waterjet shop cut a design?

I know it's hard bringing a new product to market. It's also hard being a consumer and getting excited about some product announcement, only to find it never really becomes available (cough cough timbersil cough).

These look fantastic. I'd also be interested in learning more about others' expereinces with this sort of product though.

COPPER AND THE ENVIRONMENT
Recent reports suggest that 85% toxins released by stormwater runoff from copper roofs and the above-mentioned Parasoleil panels are absorbed by cast iron, cement, and other existing porous building materials. Also, the coloring, or patina, that develops over time protects the copper from releasing ions into the environment.
Long term, copper is actually better for the environment than composite tar roof shingles that require high amounts of energy to produce and breakdown over time.