Brass / Copper Cladding Material

Hi Guys,

I have struggled for a long time to make a shader to create brass / copper cladding

Please see the links below

any ideas would be well recieved

many thanks

http://www.stylepark.com/db-images/cms/architecture-article/img/l2_v325165_958_480_472-6.jpg

http://www.stylepark.com/db-images/cms/architecture-article/img/l2_v325165_958_480_359-8.jpg

There is a Cedar Shake material and a few Brass copper shaders here that might help:

http://coronamaterials.com/material-library/

To me this looks like a simple diffuse + low reflectivity + very low glossiness value.