VentSure Rigid Roll Ridge Vents are shingle-over, low-profile ridge vents designed for the effective performance of ventilation for an energy-efficient roofing system. For an efficient roofing system, the attic must stay dry and cool. VentSure Rigid Roll Ridge Vents provide year-round protection and consistent ventilation in the attic. VentSure Rigid Roll Ridge Vents Ridge Vents have a weather protector moisture barrier that helps provide added protection against weather infiltration. VentSure Rigid Roll is an essential component for a complete and healthy roofing system.