31g Cradock St - Cladding Replacement

The works completed to 31g Cradock Street were all due to the requirement of maintenance (in terms of the existing cladding).

The existing claddings had exceeded their expected life cycle and needed to be replaced.

This replacement maintenance could have been done progressively at less than 10% per year, or all at once. Completing the maintenance all at once in turn meant a building consent was required. If the cladding repair was completed at a rate of 10% per year (non consentable), the building would have potentially deteriorated further due to the aged cladding.

With a building consent, additional changes were required to bring the house in line with the current Building Code and council requirements. Hence all the works on the house relate directly back to the maintenance and replacement of the existing cladding.

This scope and the subsequent Building Consent application, was required due to the aged state of the existing cladding, which was approximately 26 – 28years old and at the end of its life cycle.

Project Value
2012 - 2013

The details

The house was designed and constructed in the mid 80’s, Its cladding was a vertical pine ship lath which had been dipped in stain. The roofing material was a version of the current product known as coloursteel. The roof also had several large areas of glazed skylights. Existing internal decks were constructed and waterproofed with membrane.

  • All existing vertical weather boards were removed
  • All exterior walls were repaired structurally where needed or directed by the building inspector
  • All exterior timber was coated with a timber treatment
  • All external walls were insulated where insulation was missing
  • All exterior Aluminum windows were removed & replaced with new as the existing were beyond serviceability
  • All exterior walls were then wrapped with new building paper
  • All window opening were taped with new sill & jamb flashing tape and new head flashings installed
  • All exterior walls had a rigid air barrier installed and the edges sealed
  • A cavity was then formed and inspected
  • New window were installed into the opening
  • New exterior claddings were installed and painted
  • The existing roof was removed; existing purlins were replace/repaired where required
  • New insulation was installed in the roof where required
  • Existing leaking skylights were removed and replaced with new velux skylights
  • New roofing was installed along with new flashings, gutters and downpipes where the existing were beyond their serviceable life
  • New internal finishing lines were installed around the new window jamb liners
  • The existing internal linings were stopped and made good following the window replacement, then repainted
  • The existing decks were, demolished, reframed to create compliant falls, re membraned with suitable droppers and overflows installed. Protective decking was then installed
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