EIFS – leaking through cladding

Cause

Cracks in the cladding systems

Repair

  • if you believe an EIFS cladding is leaking, take action without delay, especially if it is an older direct-fixed cladding where there is no cavity between the cladding and the wall framing. Water that gets into the wall framing may cause it to rot. New Zealand standards in the period 1995 to 2005 permitted the use of untreated kiln-dried framing if the timber was expected to have a moisture content of 18% or less in use. If this untreated timber gets wet it is very susceptible to decay. If the dwelling was constructed within that time span and has cracks in the cladding system, it is crucial to take action
  • if the cladding system is less than 15 years old, call back the original installer. Wall claddings must have a durability of at least 15 years under the Building Code, and under the Limitations Act you can take action for up to 15 years after the installation if the problems were not seen at the time of installation
  • EIFS are usually proprietary systems, where the cladding manufacturer or supplier trains installers. While annual checks, simple maintenance and repainting may be possible for homeowners, more extensive repair work is not recommended for DIYers
  • if you want independent advice, getting expert advice is crucial. Don’t ask a general builder to help unless they have significant experience in the area of weathertightness and EIFS. You could engage a New Zealand Institute of Building Surveyors (NZIBS) building surveyor with experience in this area to investigate and report

Cause

Paint or sealant failure

Repair

  • see the first repair

Cause

No cap or saddle flashings at junctions of parapet and balcony walls

Repair

  • see the first repair

Cause

Junctions with other claddings and/or roof poorly detailed/constructed

Repair

  • see the first repair

Cause

Omission of head flashings to doors/windows

Repair

  • see the first repair

Cause

Minimal jamb flange cover of aluminium windows

Repair

  • see the first repair