Remediation details: wall claddings - partial reclad

In situ cladding junctions

With a partial reclad, the new work must be able to be merged with the existing without compromising the performance of either. 

While there should be a defined cladding junction to start and stop the repair, the difficulty is detailing how flashings can be inserted behind an existing cladding that is not being modified – one option is to incorporate a cover flashing into the junction detail.

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Merging new stucco/EIFS into existing 

Where a targeted repair of EIFS or stucco is considered appropriate, the replacement cladding must be merged with the existing without compromising the performance of either.

To do this: 

  • form movement control joints by saw cutting the existing cladding at the outer limit of the area to be removed, preferably up the line of a stud 
  • remove the backing 
  • replace affected timber framing
  • install new backing 
  • insert removable filler along line of joint
  • replaster
  • seal movement control joints with sealant over backing rod. 

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Dealing with adjacent construction

It is common for buildings on sloping sites to have situations such as basement walls continuous with adjacent retaining walls. 

This can create a situation where it is almost impossible to ensure continuity of waterproofing at the junction of the two construction types.

Updated: 9 September 2014