Installing DrillVent couldn't be easier.
High level vents are located externally 200 – 225mm below the soffit or roof barge. Low level vents should be installed below the DPC where possible at ground level. At this level, it doubles as a drain for the cavity as well as a vent. If the cavity is bridged or closed at intermediate floor levels, cavity venting and drainage should be provided above and below the floor plate.