Insufficient clearance
Cladding needs to be 100mm above a paved surface and 175mm above grass, garden or other non-paved surfaces. Decks, flat roofs or any other sloping roofs, require 35mm clearance from the bottom of the cladding.
Parapets without cappings
No stucco cladding should have a parapet where the plaster is carried over the top. The plaster will crack at corners and junctions. The only solution to this problem is to provide a metal cap flashing, correctly installed and jointed.
Recessed windows allowing water to penetrate flat sills
Stucco used on a flat or near flat surface (as in B in the diagram) is not waterproof. Cladding is prone to cracking at the corners and this detail is no longer allowed under the Acceptable Solution E2/AS1.
Flashings missing from windows and doors
The minimum requirement is a head flashing that extends up behind the cladding and slopes out over the aluminium window or door facing, extending past the end of the window/door by 20mm and lapping the aluminium by 10mm.