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Perimeter roof edge: The first line of defense in a wind event [AIA course]

Perimeter roof edge: The first line of defense in a wind event [AIA course]

Aside from the roof membrane itself, the perimeter roof edge is the most critical component of the roofing system.


By Duro-Last | September 20, 2013
A perimeter roof edge is a termination and transition between the roof and the other building components. It is a roof system’s first line of defense in a wind event; aside from the roof membrane itself, it is the most critical component of the roofing system. It is a component that warrants more scrutiny when designing a roof system.
 
This course describes the ANSI/SPRI ES-1 Standard and the method for determining the correct specifications for perimeter roof edges. It's worth 1.0 AIA LU/HSW.
 
After reading this article, you should be able to:
  • name the three organizations that were involved in developing standards for the perimeter roof edge prior to the adoption of the ANSI/SPRI ES-1 standard by the International Building Code.
  • list the three test procedures that are performed as part of the ANSI/SPRI ES-1 requirement.
  • delineate the five key elements of the roof that affect the performance of the roof edge treatment, as considered in the ANSI/SPRI ES-1 calculation.
  • calculate the adjusted velocity pressures for the coping top, coping face, and coping back of a perimeter roof edge under the ANSI/SPRI ES-1 standard.
 

TAKE THIS FREE BD+C UNIVERSITY COURSE

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Codes and Standards

Updated document details methods of testing fenestration for exterior walls

The Fenestration and Glazing Industry Alliance (FGIA) updated a document serving a recommended practice for determining test methodology for laboratory and field testing of exterior wall systems. The document pertains to products covered by an AAMA standard such as curtain walls, storefronts, window walls, and sloped glazing. AAMA 501-24, Methods of Test for Exterior Walls was last updated in 2015. 




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