Technical Bulletin 117
Product Information
Slopes less than 2:12 in FL
To remain in compliance with the Florida Building Code 5th Edition
(2014) on projects outside of the High Velocity Hurricane Zone
(NON-HVHZ) with roof slopes of less than 2:12 please be sure to
utilize a 180° double-lock seam with sealant. Furthermore, any
NOA reference to a minimum slope of 2:12 is strictly when using
products within the High Velocity Hurricane Zone (HVHZ) region
of Miami-Dade and Broward counties. See code reference below.
Code reference: NON-HVHZ 1507.4.2(3) | HVHZ 1515.2.2