DecisionRolling steel serviceInsulated rolling steel
Primary goalSecurity and compact storageSecurity plus thermal separation
CurtainTypically single-skin interlocking metal slatsInsulated or double-wall curtain by approved product line
Coil sizeGenerally more compactOften larger because of curtain construction
OperationPush-up, chain hoist, or motorizedChain hoist or motorized are common; model limits apply
Planning focusSecurity, cycles, exposure, controlsThermal data, seals, air movement, cycles, controls
Category guidance only. Exact product performance and dimensional limits must come from the selected manufacturer/model.