The Double Roman tile was the first tile to be mass produced in this country which accounts for its unparalleled popularity. The Double Roman can trace its shape back to Roman engineering principles. The Romans, revered for their engineering and architectural feats, were the first to discover that arches have an innate ability to withstand great pressures, and the shape of the arch distributes the weight evenly down to the base of the structure. Hence the birth of the Double Roman tile. The Double Roman tile boasts many innovative features. Scientifically tested weather locks ensure complete weather resistance.