exterior materials replace all upper level siding with dark stained vertical white oak cladding in a rich walnut to ebony tone use narrow vertical boards with subtle natural grain a matte finish and premium craftsmanship install as a continuous rainscreen system with concealed fastening no exposed fasteners screws nails clips or visible hardware create crisp shadow lines and tight consistent reveals replace the primary base cladding chimney masses and other dark exterior wall surfaces with charcoal gfrc glass fiber reinforced concrete cementitious panels panels should have a smooth matte finish with subtle natural variation minimal texture and a refined monolithic appearance use large format panels with thin uniform reveal joints and concealed attachment systems no exposed fasteners or visible mechanical connections the recessed lower level wall surfaces behind the windows should be clad in the same charcoal gfrc cementitious panel system to create a continuous high end monolithic expression roof to remain matte black standing seam metal with crisp standing seams and concealed clips all fascia flashing gutters window trim and metal accents should be matte black with clean minimal detailing material direction the overall aesthetic should be contemporary luxury mountain architecture with rich dark natural wood contrasted against monolithic charcoal gfrc panels materials should appear seamless highly detailed and premium with crisp edges tight joints and no exposed fasteners anywhere on the exterior cladding systems