Issues and repairs | BRANZ Maintaining My Home

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Earth construction – drummy or cracking plaster

Causes

Poor plaster adhesion to walls

Listed under: Exterior, plaster and fibrous plaster, cladding, walls, wall cladding, earth construction

Cause

Poor plaster adhesion to walls

Repair

consult an earth building specialist
remove plaster, score the substrate to provide a good key between the plaster and wall, re-plaster
There are three New Zealand standards covering earth building. Updated versions of each were published in February 2020:

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