Stucco
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Rust stains on stucco
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Hairline cracking in the stucco admitting moisture causing corrosion of the reinforcing mesh
Impact damage to stucco
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Stones, balls, vehicles
Stucco – drummy plaster
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Loss of bond between the plaster coats
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Plaster shrinkage
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Poor initial application of plaster
Stucco – sealant cracking at movement control joint
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UV exposure
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Sealant not suitable for being painted
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Too much movement for the grade of sealant
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Sealant not installed over a backing rod or bond breaker tape
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Sealant at the end of its serviceable life
Stucco – random hairline cracking
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Shrinkage as a result of incorrect plaster mix and/or inadequate curing
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Excessive trowelling during application
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No movement control joints installed
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Building movement or settlement
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Building subjected to vibration movement such as earthquake, high wind
Stucco – horizontal or diagonal surface cracking
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No movement control joints or poorly located movement control joints installed
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No additional reinforcing at corners of openings
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Poor application of texture coating
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Insufficient or a too large separation between reinforcing and backing
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Building movement or settlement
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Framing shrinkage
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Building subjected to vibration movement such as earthquake, high wind
Stucco – chalking paint
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Weathering, UV light exposure – chalking will be more visible with darker colours
Stucco – fading paint
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Weathering, UV light exposure – darker colours are more prone to fading
Stucco – coating failure
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Lack of maintenance
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Paint at end of serviceable life
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Moisture levels in substrate too high when initially plastered
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Moisture getting into the plaster through hairline cracking
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Paint unsuitable to be used with cement-based plaster
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Building subjected to vibration movement such as earthquake, high wind
Stucco – too close to or in ground contact
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Installed too close to the ground
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Gardens have been built up
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Path or paving laid against the cladding
Leaking through stucco
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Cracks in the cladding systems
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Paint or sealant failure
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No cap or saddle flashings at junctions of parapet and balcony walls
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Junctions with other claddings and/or roof poorly detailed/constructed
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Omission of head flashings to doors/windows
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Minimal jamb flange cover of aluminium windows
Straw bale construction – moisture entry in walls
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Inadequate eaves protection and wind-driven rain striking walls
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Too much reliance on stucco plaster finish as waterproofing
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Deteriorating plaster finish no longer adequately protects walls
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Poor or no damp-proof membrane
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Lack of ground clearance
