Notice the exterior wood siding created with the shou-sugi-ban technique. The treatment weatherizes the wood, prevents rot and bugs, and enhances fire resistance. Large windows and sliding doors blur the lines between the indoors and out, making the space feel larger. "People have been using the shou-sugi-ban treatment in Asia for a long time, but we're just catching on here in the States," says Speciale. "Typically, the charring is severe and produces a kind of alligator look. We wanted a milder charring for this home office — something warmer."