Profile: KeyBEMO Limited offers sanding seam roofing systems. Our KeyBEMO® is a secret fix standing seam roofing solution and interlocking profiles are seamed to form a continuous weatherproof roof, capable of withstanding the most severe wind loads & temperature fluctuations even under maximum spanning. Our curving machine has the capability to curve sheets to convex, concave, waveform or multi-radii profiles.