Exposed Fastened / Screw-Down
Visible screws through overlapping metal panels.
Screws penetrate directly through the metal panel and remain visible. Panels overlap each other and are fastened to the roof deck or purlins. Matching typically uses brackets rather than standing-seam clamps.
Common terms
Trapezoid, corrugated, rib panel, R-panel, PBR
Manufacturers
Canadian metal roof panels including Prestige, Tradition, TSR, and Supervic.
Snap Lok standing seam and exposed rib panels including Pinnacle and Tough Rib.
Standing seam panels including AR 25/38 and NS 1.5 nail strip.
RTL 24 Quad Lock and triple-lock standing seam profiles.
MR-24 double-folded standing seam systems.
R-Mer Span and T-shaped seam profiles.
Easy-Snap nail strip standing seam panels.
Legacy Snap Lok nail strip profiles.
Heritage Series wider nail strip profiles.
MS 1 and MS 2 nail strip profiles.
Prolok nail strip standing seam panels.
Double Lok vertical machine-folded seams.
SSR 42 wider horizontal seam profiles.
FR nailstrip standing seam profiles.
Generic corrugated and rib profiles when brand is unknown.
Standing seam panels including SS 100 and SS 150 (single and double fold).
