SPRI, the association representing sheet membrane and component suppliers to the commercial roofing industry, announced that it is reviewing ANSI/SPRI VF-1 External Fire Design Standard for Vegetative Roofsand plans to update and re-canvass the document for re-affirmation as an American National Standard in the coming months.


This design standard provides a method for designing external fire resistance for vegetative roofing systems. It is intended to provide a minimum design and installation reference for those individuals who design, specify, and install vegetative roofing systems. It shall be used in conjunction with the installation specifications and requirements of the manufacturer of the specific products used in the vegetative roofing system. The standard was developed by SPRI in 2007 and first approved as an American National Standard in 2010 and reaffirmed in 2017.


VF-1 is being re-canvassed as required by the American National Standards Institute’s policy that all National Standards must be re-evaluated every five years. Interested party may participate in the canvass process by e-mailing SPRI’s headquarters at info@spri.org or by calling 781-647-7026.