The rivets in the corrugated aluminum siding run both horizontally and vertically. It took time for McInturff to persuade Kanner to embrace the contrast of the lines, but they're pleased with the results. "The exterior almost looks like a black pair of corduroy pants, but with the stripes going both ways," says the architect, "It’s proven to be one of the more unique features of the home, and completely identifies the exterior."