SpecTips: Meeting the International Building Code Requirements for ES-1 Certified Metal Edge
Roof system securement starts at the roof edge. Neglecting a quality metal edge system can lead to roof system blow-off and could result in financial liability for the architectural design team.
Research conducted by the Roofing Industry Committee on Weather Issues (RICOWI) and FM Global has shown that around 60% of low-slope roof failures during high wind events are a result of metal edge failures. Unfortunately, project specifications often exclude metal edge system requirements such as ANSI/SPRI ES-1 “Wind Test Design Standard for Edge Systems Used with Low-Slope Roofing Systems.” ES-1 certified edge metal has been required by the International Building Code (IBC) since 2003 and is required in all US states. ES-1 requires that the tested wind resistance of the metal roof edge system exceeds the design wind load for the specific building in question.
Due to the common omission of specific edge metal requirements in project specifications, contractors often fabricate or “shop-bend” the edge metal themselves. Most shop-bent metal edge systems are not included in the roofing manufacturer’s warranty due to a lack of quality control and oversight. If the metal edge is excluded from a manufacturer’s warranty, the roof system may not be covered in the event of a roof “blow off” if it is determined that the blow off was caused by an inferior or unrated metal edge system.
Carlisle SynTec Systems has developed several cost-effective options for meeting the IBC ES-1 requirements:
- The contractor purchases prefabricated edge designs (200, 300, or 400 series) through Carlisle. This edge is eligible for wind options up to 120 MPH and will be ES-1 certified.
- The contractor can purchase Carlisle’s prefabricated cleat. This option will allow for up to a 90 MPH wind warranty and will be included in warranty if they use Carlisle Kynar sheets to shop-fabricate the cover.
- The contractor can obtain ES-1 certification through Carlisle and purchase the Kynar sheets to shop-fabricate the edge system using Carlisle’s designs. This will be an ES-1 certified edge and have up to a 72 MPH wind warranty.
The above options allow the contractor to meet ES-1 certification requirements and be included in Carlisle’s Total System Warranty.
Spec Tip
In 3-Part Specifications – Part 1 “General”, include the following for the metal edge system:
- Metal edge system must be ES-1 certified, under “Informational Submittals” section.
- ES-1 certification certificate must be included in the submittal package, under “Informational Submittals” section.
- The metal edge system must be included in the roof manufacturer’s total system warranty, under “Warranty” section.
Carlisle Metal Edge Page
SureTite Prefabricated Cleat Sell Sheet
Research conducted by the Roofing Industry Committee on Weather Issues (RICOWI) and FM Global has shown that around 60% of low-slope roof failures during high wind events are a result of metal edge failures. Unfortunately, project specifications often exclude metal edge system requirements such as ANSI/SPRI ES-1 “Wind Test Design Standard for Edge Systems Used with Low-Slope Roofing Systems.” ES-1 certified edge metal has been required by the International Building Code (IBC) since 2003 and is required in all US states. ES-1 requires that the tested wind resistance of the metal roof edge system exceeds the design wind load for the specific building in question.
Due to the common omission of specific edge metal requirements in project specifications, contractors often fabricate or “shop-bend” the edge metal themselves. Most shop-bent metal edge systems are not included in the roofing manufacturer’s warranty due to a lack of quality control and oversight. If the metal edge is excluded from a manufacturer’s warranty, the roof system may not be covered in the event of a roof “blow off” if it is determined that the blow off was caused by an inferior or unrated metal edge system.
Carlisle SynTec Systems has developed several cost-effective options for meeting the IBC ES-1 requirements:
- The contractor purchases prefabricated edge designs (200, 300, or 400 series) through Carlisle. This edge is eligible for wind options up to 120 MPH and will be ES-1 certified.
- The contractor can purchase Carlisle’s prefabricated cleat. This option will allow for up to a 90 MPH wind warranty and will be included in warranty if they use Carlisle Kynar sheets to shop-fabricate the cover.
- The contractor can obtain ES-1 certification through Carlisle and purchase the Kynar sheets to shop-fabricate the edge system using Carlisle’s designs. This will be an ES-1 certified edge and have up to a 72 MPH wind warranty.
The above options allow the contractor to meet ES-1 certification requirements and be included in Carlisle’s Total System Warranty.
Spec Tip
In 3-Part Specifications – Part 1 “General”, include the following for the metal edge system:
- Metal edge system must be ES-1 certified, under “Informational Submittals” section.
- ES-1 certification certificate must be included in the submittal package, under “Informational Submittals” section.
- The metal edge system must be included in the roof manufacturer’s total system warranty, under “Warranty” section.
Carlisle Metal Edge Page
SureTite Prefabricated Cleat Sell Sheet
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