Flex TPO Enhanced Wind Uplift - Manual (Page 3)

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b) 1/4” DensDeck Prime 12 fasteners per 4’x 8’ board.
c) 1/4" Securock Gypsum-Fiber 12 fasteners per 4’x 8’ board.
2) Wind Speeds to 90 mph.
a) Polyisocyanurate Insulation Board (25 psi Min 1 ½” thick) 16 fasteners per 4’x 8’ board.
b) 1/2” DensDeck Prime 12 fasteners per 4’x 8’ board.
c) 1/2" Securock Gypsum-Fiber 12 fasteners per 4’x 8’ board.
3) Wind Speeds to 100 mph.
a) 7/16” OSB over Flex ISO board. 17 Fasteners per 4’x 8’ board.
b) 5/8” DensDeck Prime 16 fasteners per 4’x 8’ board.
c) 5/8” Securock Gypsum-Fiber 16 fasteners per 4’x 8’ board.
4) Wind Speeds to 120 mph.
a) 7/16” OSB over Flex ISO board. 17 Fasteners per 4’x 8’ board.
b) 5/8” DensDeck Prime 24 fasteners per 4’x 8’board.
c) 5/8” Securock Gypsum-Fiber 24 fasteners per 4’x 8’ board.
Note: Fastener to be Flex Standard Insulation fastener with 3” metal insulation plate. Fastener density
listed above is for field of roof area. Fastener density must be increased a minimum of 60% in the roof
corner areas and 40% in the roof perimeter area.