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Diamond Building Products brings steel roofing, aluminum roofing and professional, expert roofing services to all of Montana. Our durable, beautiful and sustainable metal roofing solutions from Kassel & Irons and Classic Metal Roofing Systems will add value to your home as they protect you and your family for a lifetime. Best of all, our commitment to complete quality service from estimate to installation, and the support of a great warranty give you peace of mind. We’ve got you covered.