Blocked drainage slots along bottom of drained cavity cladding

Cause

Gardens built up against the cladding

Repair

  • remove dirt/mulch from the garden to ensure it is 150 mm below the bottom of the wall cladding
  • use a length of No 8 wire to clean out the drainage slots

Cause

Build-up of dust/sand/dirt/debris from insects in the bottom of the cavity

Repair

spray with insect killer and then clean out with No 8 wire