Every high-quality commercial roof replacement begins with a professional demolition process. Before Montana Pro Contractors installed the new Class 4 Malarkey Vista® AR architectural asphalt shingle roofing system at First Interstate Bank in Great Falls, Montana, our commercial roofing team completed a full demolition of the existing 23,000-square-foot roof. Removing the aging roofing system down to the roof deck allowed us to inspect the structural substrate, identify hidden deficiencies, and prepare the building for a new commercial roofing system designed to withstand Montana's demanding climate. Commercial roof demolition is far more than simply removing old shingles. It is a carefully planned phase of construction that establishes the foundation for the entire roofing system. During this project, our experienced commercial roofing professionals systematically removed the existing architectural asphalt shingles, roofing underlayment, flashing, ridge materials, fasteners, and deteriorated roofing components while protecting the occupied bank, surrounding property, and daily operations. Every section of the roof was carefully managed to maintain safety, minimize disruption, and keep the project moving efficiently. Once the existing roofing materials were removed, Montana Pro Contractors performed a detailed inspection of the exposed roof deck. This evaluation allowed our team to identify any moisture intrusion, deteriorated sheathing, damaged decking, or structural concerns before new materials were installed. A professional commercial roof tear-off ensures hidden problems are corrected instead of concealed beneath a new roofing system. Beginning with a clean, dry, and structurally sound roof deck significantly improves roof performance, extends service life, and helps maintain manufacturer warranty requirements. The demolition process also provided an opportunity to inspect roof penetrations, ventilation components, edge metal, flashing details, and drainage conditions throughout the 23,000-square-foot commercial roof. Addressing these critical areas before installation helps create a complete roofing assembly capable of resisting Montana's high winds, hail, heavy snow loads, freeze-thaw cycles, and intense UV exposure. Every layer of the roofing system contributes to long-term waterproofing performance, making proper demolition one of the most important investments in a successful commercial reroof project. With demolition complete, the roof was fully prepared for installation of premium roofing underlayment and Class 4 Malarkey Vista® AR architectural asphalt shingles. Manufactured using SBS polymer-modified asphalt, Malarkey Vista® AR shingles provide exceptional flexibility, Class 4 impact resistance, superior wind performance, and long-term durability. Combined with proper roof preparation and precision installation, the finished roofing system delivers outstanding protection for one of Great Falls' premier commercial properties. Large-scale commercial roofing projects require experience, planning, and attention to detail at every stage of construction. Montana Pro Contractors specializes in commercial roof replacement, commercial reroofing, architectural asphalt shingle roofing, commercial metal roofing, EPDM roofing, TPO roofing, and complete exterior renovations for banks, churches, office buildings, retail centers, industrial facilities, and multi-family properties throughout Western Montana. Our commitment to quality workmanship begins with a professional demolition process that prepares every roof for decades of reliable performance. Whether replacing a 23,000-square-foot commercial roof or completing a complex roofing system for a large commercial facility, Montana Pro Contractors delivers the expertise, craftsmanship, and project management necessary to complete every job safely, efficiently, and to the highest industry standards. Montana Pro Contractors — Covering Western Montana.