Working Hours
8:00 AM - 5:00 PM
Working Hours
8:00 AM - 5:00 PM
Trusted Flat Roofing Since 1977
Flat and low-slope roofing systems require specialized expertise, precise installation, and proven materials to deliver decades of reliable performance. At Rauth Roofing, we’ve been protecting commercial, industrial, and institutional facilities across Southwestern Ontario with expert flat roofing solutions since 1977.
We install all major flat roofing technologies including TPO, EPDM, PVC, built-up roofing, modified bitumen, and advanced coating systems—ensuring you get the right solution for your facility’s specific requirements, performance goals, and budget.
Our installation teams maintain certifications across all major roofing manufacturers, guaranteeing that every flat roof we install meets strict quality standards and qualifies for comprehensive warranty coverage.
Every flat roofing project is executed with full Ministry of Labour and OHSA compliance, comprehensive fall protection systems, and daily safety protocols that protect our crews, your occupants, and your operations.
Engineered Systems That Perform
We install industry-leading flat roofing systems tailored to your facility’s specific requirements, performance expectations, and budget considerations.
Thermoplastic Polyolefin (TPO) roofing is one of the fastest-growing commercial roofing solutions, offering exceptional energy efficiency through its highly reflective white surface. This heat-welded single-ply membrane provides superior durability, chemical resistance, and cost-effective performance for a wide range of commercial and industrial applications.
The bright white surface reflects UV rays and reduces cooling costs, making TPO an ideal choice for facilities focused on energy savings and sustainability.
Hot-air welded seams create watertight bonds that are stronger than the membrane itself, providing exceptional leak protection and long-term reliability.
Ethylene Propylene Diene Monomer (EPDM) rubber roofing has proven itself as one of the most reliable and durable flat roofing materials for over 50 years. This flexible, weather-resistant membrane withstands extreme temperatures, UV exposure, and environmental stress while delivering exceptional longevity at a competitive price point.
EPDM's rubber composition resists cracking, weathering, and UV degradation, often lasting 30+ years with proper maintenance and delivering outstanding return on investment.
This highly flexible membrane performs reliably in extreme cold and heat, expanding and contracting without compromising watertight integrity across all seasons.
Roof coating systems offer a cost-effective restoration solution that extends the life of existing roofs while improving energy efficiency and performance. These seamless, liquid-applied membranes create a protective barrier that seals leaks, reflects heat, and can add 10-20 years of service life to aging roof systems without the expense and disruption of a complete tear-off.
Coating systems can extend roof life at a fraction of replacement cost, making them an ideal solution for facilities looking to maximize budget while maintaining protection and performance.
Liquid-applied coatings create a monolithic, seamless membrane with no joints or seams, eliminating common leak points while providing superior UV and weather resistance.
Built-Up Roofing (BUR) and Modified Bitumen systems represent time-tested asphaltic roofing technology with a proven track record spanning over a century. These multi-layer systems provide exceptional puncture resistance, superior waterproofing, and the redundancy of multiple plies—making them ideal for high-traffic roofs and demanding industrial environments.
Multiple plies of reinforced felt and asphalt create a redundant waterproofing barrier, ensuring that even if one layer is compromised, additional layers continue protecting your facility.
The thickness and composition of BUR and modified bitumen systems make them highly resistant to mechanical damage, foot traffic, and rooftop equipment—perfect for industrial applications.
From Assessment to Completion
From initial assessment to final warranty registration, our systematic approach ensures transparency, quality, and peace of mind at every stage of your flat roofing project.
We begin every flat roofing project with a comprehensive on-site inspection and roof core sampling to assess existing conditions, identify hidden issues, and determine the best solution for your facility.
Based on our findings, we provide a detailed proposal outlining recommended systems, scope of work, transparent pricing, and project timeline—giving you everything needed to make an informed decision.
Once approved, our certified installation teams execute your project with rigorous safety protocols, quality control measures, and transparent communication to ensure minimal disruption and maximum performance.
Upon completion, we conduct thorough final inspections, provide comprehensive documentation, and ensure all manufacturer warranties are properly registered—giving you complete peace of mind and protection.
Working with the Best
Flat and low-slope roofs present unique challenges that require specialized knowledge, proper material selection, and precise installation techniques. Choosing a contractor with dedicated flat roofing expertise makes the difference between a roof that lasts decades and one that requires constant repairs.
We maintain certifications across all major flat roofing systems, ensuring every installation meets strict manufacturer standards and qualifies for comprehensive warranty coverage.
Unlike steep-slope roofs, flat roofs rely on strategic drainage design and precise slope installation to prevent ponding water—the leading cause of premature flat roof failure.
Frequently ASKED QUESTIONS
Choosing the right flat roofing system and contractor involves important decisions that impact your facility for decades to come. Here are answers to the most common questions we hear from institutional, commercial, and industrial clients across Southwestern Ontario.
The lifespan of a flat roof depends on the system type, installation quality, and maintenance practices. TPO and EPDM single-ply membranes typically last 20-30 years, while built-up and modified bitumen systems can exceed 30 years with proper care. At Rauth Roofing, we use manufacturer-certified installation methods and provide comprehensive warranty coverage to ensure you get maximum performance and longevity from your investment.
TPO (Thermoplastic Polyolefin) is a white, heat-welded membrane known for exceptional energy efficiency and reflectivity, making it ideal for facilities focused on reducing cooling costs. EPDM (rubber roofing) is a black membrane with proven 50+ year track record, superior flexibility in extreme temperatures, and typically lower material costs. Both systems offer excellent durability and performance—we help you select the right option based on your facility’s specific needs, budget considerations, and energy goals.
In many cases, yes—roof coating systems can be an excellent cost-effective alternative to complete replacement if your existing roof meets certain criteria. We begin with a thorough inspection including core samples to assess the roof deck, insulation, and membrane condition. If there’s no significant moisture infiltration, structural damage, or extensive deterioration, coating systems can extend your roof’s life by 10-20 years at a fraction of replacement cost.
Proper drainage design and precise installation are critical to flat roof performance. During initial assessment, we evaluate existing drainage patterns, roof slope, and potential problem areas. Our installations incorporate strategic tapered insulation systems when needed to create positive drainage toward roof drains and scuppers, ensuring water doesn’t pond for more than 48 hours after rainfall.
We understand that minimizing disruption is critical for institutional, commercial, and industrial facilities. Our project planning process includes strategic scheduling, phased installation approaches, and careful coordination with your operations team to protect occupants and maintain business continuity.
Your Roof Deserves Expert Care
Client Success Stories
Our reputation is built on decades of satisfied clients who’ve experienced the transparency, quality, and peace of mind that define the Rauth difference.
