The exterior of the house is clad in low-maintenance fiber-cement siding with stained wood accents and inexpensive thermal-break aluminum windows.:
Barn with board and batten siding, front porch, benches, gray green hemlock and vinyl windows. Designed by Kerrin Muller, Muller Design Company, interior and exterior design, Fredericksburg, Virginia.
Barn House Metal Design, Pictures, Remodel, Decor and Ideas - page 16
The James Hardie company's fiber cement panels can be butted to each other or can be installed with a reveal between each panel. I love this look for contemporary houses. It almost looks like steel, but it won't rust.