Commercial roofing systems are only as strong as their weakest component, and in many cases, that weak point is the perimeter edge metal or gutter system. That’s why Sheridan Sheet Metal Company is proud to announce that we are now ES-1 and GT-1 certified through Intertek and the National Roofing Contractors Association (NRCA).
This certification reinforces Sheridan’s commitment to delivering tested, code-compliant perimeter systems for commercial roofing contractors, general contractors, and architects.
What ES-1 Certification Means for Roof Edge Systems
ES-1 certification refers to the ANSI/SPRI ES-1 standard, which establishes testing requirements for roof edge systems to resist wind uplift forces. These forces can be significantly higher at roof perimeters and corners, making edge metal one of the most critical components of the roofing system.
ES-1 compliance is now required by the International Building Code (IBC) for commercial buildings.
Testing verifies that edge metal systems can withstand:
- Severe wind uplift pressure
- Failure at roof perimeters and corners
- Detachment of fascia or coping systems during storms
For contractors, using ES-1 compliant edge metal means:
- Meeting IBC building code requirements
- Reducing risk of roof system failure
- Helping projects pass inspection and specification review
Sheridan’s ES-1 certification means our fabricated edge systems have been independently tested and verified to meet these performance standards.
What GT-1 Certification Means for Commercial Gutters
While ES-1 focuses on edge metal, GT-1 certification applies specifically to gutter systems.
The NRCA GT-1 standard evaluates the structural strength and performance of roof gutter systems, ensuring they can handle:
- Water load
- Ice buildup
- Wind forces
- Structural attachment stresses
For contractors and designers, GT-1 certification provides confidence that a gutter system is engineered and tested to perform under real-world conditions.
Sheridan’s GT-1 certification means our gutter systems are built to recognized industry testing standards, not just fabricated to appearance or tradition.
Why Certification Matters for Contractors
Roof edge failures are one of the most common causes of roof system damage during high-wind events. Many project specifications now require ES-1 tested systems, and more architects are beginning to reference GT-1 standards for commercial gutter installations.
Working with a certified fabricator provides several advantages:
- Easier specification compliance
- Reduced liability risk
- Confidence for architects and engineers
- Stronger perimeter system performance
For contractors bidding projects, specifying certified systems can also simplify submittals and approvals.
Fabricated in Minnesota. Shipped Nationwide.
Sheridan Sheet Metal manufactures architectural and commercial sheet metal systems from our shop in Minnesota.
Our team regularly fabricates:
- Edge metal systems
- Fascia and coping
- Custom roof perimeter flashing
- Commercial gutter systems
- Standing seam roof components
- Architectural sheet metal details
While we work closely with contractors throughout Minnesota and the Upper Midwest, we can also fabricate and ship certified systems nationwide.
Partner With Sheridan on Your Next Project
If your project requires ES-1 or GT-1 compliant edge metal or gutter systems, Sheridan Sheet Metal can help you meet specification requirements while delivering high-quality fabrication and reliable turnaround times.
Our team is happy to review plans, assist with specifications, or provide fabrication quotes.
Contact Sheridan Sheet Metal to discuss your next project.
