The David and Lucile Packard Foundation Headquarters: exterior building materials feature copper cladding with recycled content, Mt. Moriah stone tiles, and FSC-certified wood. (Photo by Mignon O’Young) The David and Lucile Packard Foundation Headquarters: exterior building materials feature copper cladding with recycled content, Mt. Moriah stone tiles, and FSC-certified wood. (Photo by Mignon O’Young)