A flat roof that fails does not just leak. It destroys ceilings, damages insulation, rots structural timbers, and turns a manageable maintenance cost into a catastrophic repair bill. At Perrault Roofers, we specialize in high-performance flat roofing systems engineered to handle Superior, WI’s punishing freeze-thaw cycles, heavy precipitation, and extreme seasonal shifts. Our decades of hands-on experience mean we install, replace, and repair flat roofs with the precision and integrity your home demands. Transparent pricing, zero hidden costs, and workmanship done right the first time. That is the Perrault standard.
Flat roofing refers to low-slope or nearly horizontal roofing systems commonly found on residential additions, garages, and modern home designs. While the name implies a completely level surface, flat roofs are built with a slight pitch to encourage water drainage. Modern flat roofing systems use advanced membranes and materials that provide outstanding waterproofing performance, making them a practical and durable choice when installed by experienced professionals.
A flat roof is only as good as the installation behind it. Poor workmanship creates ponding water, membrane failures, and chronic leak points that compound into expensive structural damage over time. Perrault Roofers installs flat roofing systems with meticulous attention to drainage design, membrane sealing, and flashing detail. Every installation follows industry best practices and uses top-quality materials selected to perform under Wisconsin’s demanding climate conditions.
If your existing flat roof is showing signs of chronic leaking, surface cracking, blistering, or widespread membrane failure, a full replacement is the only move that makes financial sense long term. Our team handles complete tear-off, substrate inspection, and full system installation efficiently and cleanly. We minimize disruption to your household while maximizing the lifespan and performance of your new flat roofing system.
Caught early, most flat roof problems can be resolved with targeted, cost-effective repairs. Perrault Roofers diagnoses the true source of leaks, membrane splits, flashing separations, and drainage failures accurately, then repairs them with precision. We do not apply temporary patches that fail at the first freeze. We deliver repairs built to last through Superior’s harshest seasons.
Beyond installation and repair, we offer professional flat roof waterproofing and protective coating applications that extend the life of your existing system. These solutions add a reinforced barrier against moisture intrusion, UV degradation, and thermal movement, giving your flat roof a second wind and protecting your property investment without the cost of a full replacement.
Years of hands-on roofing expertise ensure every project is done right the first time.
We use trusted, industry-leading materials for long-lasting durability and performance.
No hidden costs—just clear estimates and straightforward communication.
We complete projects on time while maintaining the highest quality standards.





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How do I schedule a flat roof inspection with Perrault Roofers?