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Understanding ANSI/SPRI ES-1 Certifications in Roofing Systems

Updated: Dec 21, 2023


Roof edge safety is a critical consideration in the design and installation of low-sloped roofs. The ANSI/SPRI ES-1 Roof Edge Standard serves as a vital reference for professionals involved in designing, specifying, or installing edge materials for such roofing installations. Primarily focused on wind resistance, this standard provides a straightforward calculation method for determining wind uplift pressures on components and cladding across diverse building types and geographical locations.



tornado blowing roof off house cartoon

At the core of the ES-1 certification are the guidelines revised in alignment with the ASCE 7-02 document, titled "Minimum Design Loads for Buildings and Other Structures." This ensures a robust and reliable approach to calculating wind uplift pressures, enhancing the overall safety and durability of roofing assemblies, including gutters.



Key players in the ES-1 certification process include the American National Standard Institute (ANSI) and the Single-Ply Roofing Industry (SPRI). ANSI, a non-profit organization, endorses performance testing processes, while SPRI, comprising manufacturers and professionals in the single-ply roofing industry, plays a crucial role in the development and consensus-building of the standard.


SPRI Logo
ANSI Logo




The journey from idea to code involves several steps, starting with the development by SPRI, approval by ANSI, and subsequent approval by the International Code Council (ICC). The standard was then added to the 2003 edition, solidifying its status as an international code for roof edge safety.



In the realm of certifications related to roofing, the ES-1 standard stands out from prescriptive standards like those provided by the Sheet Metal & Air Conditioning Contractors Association (SMACNA). While SMACNA offers guidance on metal gauges and fastener placement, it lacks performance numbers and is not subjected to performance testing.

Factory Mutual (FM) is another player in the certification landscape, formed by insurance companies to establish testing standards for materials used on insured properties. However, it's essential to differentiate between FM testing and ANSI/SPRI ES-1 testing, as they are distinct methods with unique requirements.



The International Building Code (IBC) mandates adherence to the ANSI/SPRI ES-1 standard for low-slope roof systems' edge metal flashing. This provision marks a departure from industry practices, where edge metal flashings were traditionally designed based on guidelines or regional practices, without specific testing for wind load resistance.

In conclusion, the ANSI/SPRI ES-1 certification plays a pivotal role in ensuring the safety and performance of low-sloped roofs. By establishing a standardized approach to wind resistance calculations and garnering support from industry stakeholders, it has become an integral part of the international building code, ushering in a new era of reliability and accountability in roofing system design and installation.



ES-1 CERTIFICATIONS

Introduction to ES-1 Certification 

The ANSI/SPRI ES-1 Roof Edge Standard is a reference for those who design, specify or install edge materials used with low sloped roof installations. This standard focuses primarily on design for wind resistance. It is intended for use with specifications and requirements of specific materials and edge systems used in the roofing assembly, including gutters. 

These guidelines have been revised in accordance with the ASCE 7-02 document titled "Minimum Design Loads for Buildings and Other Structures" to provide a relatively simple calculation method for the determination of the wind uplift pressures on components and cladding for any building and any geographical location of the building. 


Temple Architectural Products has received ES-1 Certifications for the following products:


22 ga. Steel Coping Cap, 20 ga. Anchor Chairs

Vertical Design Pressure (Top): 43 P.F.Horizontal Design Pressure (Face): 132 P .F.Product Size: 5 ¾" Outside Face, 17 ¾" Wall Width, 4" Inside


22 ga. Steel Coping Cap, 20 ga. Anchor Chairs

Vertical Design Pressure (Top): 138.6 P.F.Horizontal Design Pressure (Face): 45 P.F.Product Size: 6" Outside Face, 18 9/16" Wall Width, 4" Inside


.040" Aluminum Coping Cap, 20 ga. Steel Anchor Chairs

Vertical Design Pressure (Top): 110 P.F.Horizontal Design Pressure (Face): 36 P.F.Product Size: 5 ¾" Outside Face, 17 ¾" Wall Width, 4" Inside


.040" Aluminum Coping Cap, 20 ga. Steel Anchor Chairs

Vertical Design Pressure (Top): 165 P.F.Horizontal Design Pressure (Face): 50.625 P.F.Product Size: 6 ¾" Outside Face, 22" Wall Width, 4 ¼" Inside


.050" Aluminum Coping Cap, .050" Aluminum Anchor Chairs

Vertical Design Pressure (Top): 422 P.F.Horizontal Design Pressure (Face): 137 P.F.Product Size: 5 ¾" Outside Face, 18 ¼" Wall Width, 4" Inside


.040" Aluminum Coping Cap, 20 ga. Steel Anchor Chairs

Vertical Design Pressure (Top): 184.8 P.F.Horizontal Design Pressure (Face): 60 P.F.Product Size: 6" Outside Face, 18 9/16" Wall Width, 4" Inside


.040" Aluminum Coping Cap, .050" Aluminum Full Cleat

Vertical Design Pressure (Top): 110 P.F.Horizontal Design Pressure (Face ): 36 P.F.Product Size: 5 ¾" Outside Face, 17 ¾" Wall Width, 4" Inside


.040" Aluminum Coping Cap, 20 ga. Steel Anchor Chairs

Vertical Design Pressure (Top): 110 P.F.Horizontal Design Pressure (Face): 36 P.F.Product Size: 5 ¾" Outside Face, 17 ¾" Wall Width, 4" Inside


24 ga. Steel Coping Cap, 20 ga. Steel Cleat

Vertical Design Pressure (Top): 444 P.F.Horizontal Design Pressure (Face): 144 P.F.Product Size: 4" Outside Face, 14 ¼" Wall Width, 3" Inside


24 ga. Steel Coping Cap, 20 ga. Steel Anchor Chairs

Vertical Design Pressure (Top): 110 P.F.Horizontal Design Pressure (Face): 36 P.F.Product Size: 5 ¾" Outside Face, 17 ¾" Wall Width, 4" Inside


24 ga. Steel Gravel-Stop Cover, 20 ga. Steel Cont. Cleat

Vertical Design Pressure (Top): N/AHorizontal Design Pressure (Face): 249.7 P.F.Product Size: 4 ¼" Vertical Face, 1" Cant, 3" Roof Flange


24 ga. Steel Drip Edge Cover, 22 ga. Steel Cont. Cleat

Vertical Design Pressure (Top): NIAHorizontal Design Pressure (Face): 145 P.F.Product Size: 4" Vertical Face, 3 ¾" Roof Flange




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