Leaking through stained or clear-finished timber weatherboards

Cause

Split or cupped boards

Repair

  • replace damaged boards
  • a building consent will be required for repair work where the cladding has failed to meet Building Code durability and weathertightness provisions
  • where it is suspected that the building may be leaking and there is a risk of damage behind the cladding engage an experienced building surveyor to report on the building 

Cause

Plugs missing in rusticated weatherboards

Repair

  • replace or install plugs in rusticated weatherboards
  •  replace damaged boards
  • a building consent will be required for repair work where the cladding has failed to meet Building Code durability and weathertightness provisions
  • where it is suspected that the building may be leaking and there is a risk of damage behind the cladding engage an experienced building surveyor to report on the building

Cause

Scribers missing in bevel-back weatherboards

Repair

  • replace damaged boards
  • replace or install scribers in bevel-back weatherboards
  • a building consent will be required for repair work where the cladding has failed to meet Building Code durability and weathertightness provisions
  • where it is suspected that the building may be leaking and there is a risk of damage behind the cladding engage an experienced building surveyor to report on the building

Cause

Joints opening due to timber movement

Repair

  • replace damaged boards
  • scrape and/or sand off loose paint; sand bare timber until the surface is sound; prime; fill joints with putty or exterior grade flexible (polyester) filler; paint with at least two coats of semi-gloss or high gloss acrylic paint
  • for additional joint and mitred corner protection, after painting cover joints and corners with galvanised steel soakers (metal covers) or timber cover boards
  • a building consent will be required for repair work where the cladding has failed to meet Building Code durability and weathertightness provisions
  • where it is suspected that the building may be leaking and there is a risk of damage behind the cladding engage an experienced building surveyor to report on the building 

Cause

Poor corner detailing

Repair

  • replace damaged boards
  • cover joints and corners with galvanised steel soakers (metal covers) or timber cover boards
  • a building consent will be required for repair work where the cladding has failed to meet Building Code durability and weathertightness provisions
  • where it is suspected that the building may be leaking and there is a risk of damage behind the cladding engage an experienced building surveyor to report on the building

Cause

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

Repair

  • replace damaged boards
  • remove weatherboards, install flashings as required, replace weatherboards
  • a building consent will be required for repair work where the cladding has failed to meet Building Code durability and weathertightness provisions
  • where it is suspected that the building may be leaking and there is a risk of damage behind the cladding engage an experienced building surveyor to report on the building 

Cause

Minimal jamb flange cover of aluminium windows

Repair

  • replace damaged boards
  • replace windows with windows that have larger jamb flanges or add facings to the existing windows
  • a building consent will be required for repair work where the cladding has failed to meet Building Code durability and weathertightness provisions
  • where it is suspected that the building may be leaking and there is a risk of damage behind the cladding engage an experienced building surveyor to report on the building 

Cause

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

Repair

  • where it is suspected that the building may be leaking and there is a risk of damage behind the cladding engage a registered building surveyor to report on the building
  • a building consent will be required for repair work where the cladding has failed to meet Building Code durability and weathertightness provisions