Skin of Architecture: Slate

Source: Machado and Silvetti Associates

Boston Public Library, Honan-Allston Branch, Allston, Massachusetts, USA, 2001 designed by Machado and Silvetti Associates

The warm material palette is made up of slate shingles and panels, rough slate blocks, and wood cladding. Natural finished wood windows are used with a combination of fixed and operable units. The interior floors are a combination of wood and cork which shares the same warm tones of the exterior materials. -- architect's web site

Source: Koji Fujii archdaily

House of Uchigami, Hiroshima Prefecture, Japan, 2012 designed by Keisuke Kawaguchi + K2-Design

We adopted rustic natural stone for the exterior walls. By finishing both the roof and walls with the same material, we aimed for the house to have an understated charm while exhibiting distinctive character. -- ArchDaily