Products / FF1 Panel
FF1 Panel
UL 2218 Class 4FF1 is a snap-together standing seam steel roof panel with a 1 inch seam, fastened with pancake fasteners through a hidden flange and installed over solid decking. It offers 16 inch coverage in 26 gauge and 12, 16 or 18 inch coverage in 24 gauge, with pan striations required on 26 gauge, and a minimum slope of 3:12. MPI's UL certification sheet lists UL 580 Class 90 (constructions 618 and 529), UL 2218 Class IV impact, ASTM E108/UL 790 Class A fire, and Florida Product Approval FL3900-R2.
Manufacturer
Material
Product line
FF1 Panel
Impact class
UL 2218 Class 4Fire rating
Class A
Standards met
UL 580UL 2218 Class 4UL 790
Status
active
Spec sheet
Sources
- metalpanelsinc.com verified 2026-10-16
- metalpanelsinc.com verified 2026-10-16