There are amendments to the local Standard Building codes based on the new International Building Code (IBC) requirement; requiring that all roof edge systems be tested to comply with the ANSI/SPRI ES-1 requirements for wind uplift and long term performance.
More and more states are adopting the 2003 version of the IBC; it is only a matter of time before this is a nation-wide standard.
National Sheet Metal Systems Inc., a leader in the premanufactured roof edge industry, located in Atlanta, GA, can provide your company with the roof edge products that not only meet the new local codes but also comply with the requirements of the 2003 International Building Code (IBC).
All too often roofing contractors fabricate or provide metal roof edge products that do not meet the new industry performance standards. According to the FM Global study of building losses, “59% occurred because the perimeter edge products failed.”
For the first time to the roofing industry “The Final Solution” to High Priced Industry Testing. Your company now has the in-house ability to test your fabricated perimeter edge details, to be compliant with the new ANSI/SPRI ES-1 Standard.
Don’t get caught without the proper certificates for your next project. Take matters into your own hands and make sure your metal has been tested; we can assist you with the NSMS-100.
With the new mandatory building codes going into effect in more and more states, it’s very important that you are aware of all the options that your company has available to ensure that you are meeting the requirements for the new codes, and more importantly limit your exposure to civil and contractual liabilities.
NSMS, Inc. has several different options to offer regarding the new ANSI/SPRI ES-1 testing requirements
With three great options available to your company; NSMS can provide you with the tools to meet the new requirements that are set forth in the new building codes.
By purchasing all your perimeter edge details from NSMS, Inc., we can supply your company with a “Certificate of Compliance” on each order requiring ANSI/SRI ES-1certification, at NO ADDITIONAL COST.
NSMS, Inc. can provide “testing” on the fabricated edge details that is produced in your shop at a cost of $2,500.00 per condition. Furthermore, yearly ongoing audits will need to be performed to insure that fabrication processes are being maintained. The cost of this service will need to be further discussed upon determination of the scope of your needs and fabrication locations.
NSMS, Inc. is making available the NSMS-100, an ANSI/SPRI ES-1 testing machine for purchase. This machine will enable your company to perform tests when and where required. These machines cost $60,000 each (+ freight), and could be strategically placed throughout the country to best suit your companies needs.
Call us today, to discuss which option is best for your company. We will be glad to customize the perfect solution for your needs.
The formulation for calculating a building’s design pressure is found in “ANSI/SPRI ES-1 and the Wind Design Standard for Edge Systems Used with Low Slope Roofing Systems.” This calculation involves 5 key elements and should be calculated as follows:
CGp x qz x I x kzt CGp = Gust Factor Product qz = Velocity Pressure from Table 4 I = Importance Factor kzt = Topographical Factor
1 – Building Height The building height should be the height at which the roof edge is to be installed. If there are multiple roof levels, each level is considered a different building height.
2 – Wind Speed Use the ANSI/ASCE 7-02 document, “Minimum Design Loads for Buildings and Other Structures.” This document provides wind maps of the United States and its territories, which are to be used to determine the wind speed for a particular region.
3 – Building Location (exposure level)
Exposure A: Now classified as Exposure B Exposure B: Urban & suburban areas, single family dwelling. Exposure C: Open terrain with scattered obstructions. Exposure D: Flat, unobstructed areas; open water for 1 mile or greater.
4 – Building Occupancy Factor (important)
Category 1: Buildings & other structures that represent a low hazard to human life in the event of failure (i.e. agricultural facilities, certain temporary facilities and minor storage facilities)
Category 2: All buildings & other structures except those listed in Categories 1, 3 & 4
Category 3: Buildings & other structures that requested a substantial hazard to human life in the event of a failure (i.e. buildings where more than 300 people congregate, elementary, secondary schools & daycare facilities with a capacity greater than 250 people, health care facilities with a capacity of 50 or more resident patients, but not having surgery or emergency treatment facilities and jails or detention facilities.)
Category 4: Buildings & other structures designed as essential facilities (i.e. hospitals & other health care facilities having surgery or emergency treatment facilities, fire, rescue & police stations & emergency vehicle garages and communications centers & other facilities required for emergency response)
5 – Special Terrain Characteristics Obstructions or special terrain characteristics such as hills, escarpments, etc. will influence the wind patterns on your buildings.
What is involved in the ANSI/SPRI ES-1 testing process?
The key elements considered in testing are:
Wind Speed
Building Occupancy
Building Height
Location on Roof
Building Location
Three tests make up the ES-1 testing process.
Test 1 (RE-1): This tests the roof edge termination for mechanically attached and ballasted roofing systems. The test evaluates the perimeter attachment to ensure that it meets a minimum holding power of 100 lbs/ft. The membrane is pulled at a 45° angle to the roof deck to simulate a billowing membrane. Failure is defined as any event that allows the membrane to come free of the edge termination or the termination to come free.
Test 2 (RE-2): This is a pull-off test for metal edge flashing. It evaluates the strength of the metal edge flashing to ensure that the fascia system meets or exceeds the building’s calculated design wind pressure. A load is applied to the fascia metal, simulating wind load on the fascia. The calculation used is: force at failure X faced area = blow-off resistance. The results must meet or exceed the calculated design wind pressure of the building.
Test 3 (RE-3): This test is a pull-off test for metal wall coping. It evaluates the strength of the metal coping cap to ensure that it meets or exceeds the building’s calculated design wind pressure. A load is applied to the coping cap, simulating wind load. Simultaneous up and out forces are used. The calculation used is force at failure X face area = blow-off resistance. The results must meet or exceed the calculated design wind pressure of the building.
NSMS Inc., a leader in the premanufactured roof edge industry located in Atlanta, GA, can provide your company with the roof edge products that not only meet the new codes but also comply with the requirements of the 2003 International Building Code (IBC).
More and more states are adopting the 2003 version of the IBC; it is only a matter of time before this is a nation-wide standard. 
For the first time to the roofing industry “The Final Solution” to High Priced Industry Testing. Your company now has the in-house ability to test your fabricated perimeter edge details, to be compliant with the new ANSI/SPRI ES-1 Standard. 
