Required Building Code

The Importance of ANSI/SPRI/FM 4435/ES-1

Why is Coping and Fascia Important?

3% of the total project cost, stronger edge metal is the single most cost-effective enhancement for wind uplift on a commercial roof.

Source: FM Approved Product News Vol. 21 No. 2 2005
Source: ANSI/SPRI/FM 4435/ES-1 Wind Design Standard for Edge Systems Used with Low Slope Roofing Systems.

What is ANSI/SPRI/FM 4435/ES-1? 

  • ANSI/SPRI/FM 4435/ES-1 is a test standard developed to determine an edge metal system’s resistance to wind pressure.  

  • Establishes minimum acceptable criteria for edge metal performance against wind events.  

  • Based on ASCE-7 design loads for buildings & other structures.  

  • Pressures are reported as Horizontal (outward) and Vertical (upward) pounds/sq foot (psf).


4 Factors Used to Determine Necessary Pressure  

  1. Building Exposure (What is the geographical surroundings of the building?)  

  2. Building Category (How is the building going to be used/occupied?) 

  3. Building Height  

  4. ​Building Location

Click here for the ANSI/SPRI/FM 4435/ES-1 Calculator!​

3 Test Methods Depending on the Edge Profile Being Used