Jacobs Well Roof Inspection Report Purpose:

Provide a roof condition report after a Jacobs Well roof inspection was carried out, checking adherence to N.C.C 2019 Vol.2, AS 1562.1, AS 1562.3, AS 3500.3 and SA HB 39 2015: The installation Code for Metal Roofing and Walling as well as manufacturer’s instructions relating to the proper use of Colorbond steel roofing. For more information on these building codes, click here. This report also provides many recommendations to extend the longevity of the roofing materials.

Findings & Recommendations In Jacobs Well Roof Inspection

  • Evidence of minor swarf in various areas to the main roof. Non-compliant to SA HB39 refer to 3.6 as shown. The property is very close to saltwater and if not removed this will lead to corrosion and possible failure of the roofing materials. Additional pictures show minor swarf in various areas of the main roof.
  • Ponding is occurring to the eave guttering on the main roof, due to insufficient falls. Non-compliant with AS 3500.3 refers to 4.5.3. as shown in the report. Rectifying this issue will stop corrosion, and future ingress and will increase longevity.
  • The flashings are heavily reliant on silicone, which has no longevity and breaks down under the sun’s UV rays. It was not possible to determine if compliant installation has been achieved due to over sealing of the flashing joints. Non-compliant with SA HB39 refer to 5.8.3 as shown. This is likely fit for purpose.
  • Evidence of damage to the roof sheets in various areas to the main roof, noncompliant with SA HB39 refer to B6.5.1 and B6.5.2, as shown in the report. Rectifying this issue will stop future ingress and will increase longevity.
  • Flashing connection joints have limited silicone under seal and have insufficient fasteners with gaps present, noncompliant to SA HB39 refer to 5.8.3 as shown in report. This will also reduce longevity as moisture from condensation gets trapped between the flashings leading to corrosion and future ingress.
  • Parapet cap flashings to the low-level roofs, shown with inadequate fall, noncompliant SA HB39 refer 8.7 as shown in the report. Parapet cap flashings have not been provided with a minimum 3-degree fall towards the roof coverings and are resulting in ponding, non-compliant to AS 3500.3 refer to 4.4.3 as shown.
  • Significant foot traffic damage to the lower roof is non-compliant with SA HB39 refer to B6.5.1 and B6.5.2, as shown above, replacing the damaged roof sheets is the only option. Rectifying this issue will stop corrosion, and future ingress and will increase longevity.
  • It was not possible to determine if the side lower roof has swarf damage, due to building debris which has not been cleaned from the roof sheets. Also, surface rust in the gutter is present resulting from debris which has not been removed. Non-compliant to SA HB 39 refers to 3.8 as shown above.
  • Evidence of a significant amount of concrete still on the surface of the roof sheets and should be removed as practically possible to stop the spread of future corrosion and to increase longevity. Colorbond steel is not recommended for immersion in wet cement as rapid corrosion and degradation of the coating alloy will occur, replacing the marked roof sheets is the only option.
  • Evidence of a significant amount of swarf to the roof sheets in various areas to the rear lower roof. Non-compliant with SA HB3referser to 3.6 as shown above in #1. The property is very close to saltwater and if not removed this will lead to corrosion and possible failure of the roofing materials.
  • Flashing connection joints have limited silicone under seal and have insufficient fasteners with gaps present. Noncompliant to SA HB39 refer to 5.8.3 as shown above in #3. This will also reduce longevity as moisture from condensation gets trapped between the flashings leading to corrosion and future ingress.
  • Evidence of heavy debris build-up to the eave gutter, and if not removed this will lead to corrosion and possible failure of the roofing materials

Conculsion Outlined In Jacobs Well Roof Condition Report

There are non-compliance issues as noted in this report and it would be beneficial to rectify these to ensure the roof is compliant and increase longevity. The upper roof has some minor sheet damage that will require repairs, the swarf and remaining items should not affect the performance of the sheeting.

The lower roof areas have been heavily trafficked from other trades, there is heavy build up of dirt and debris that needs to be cleaned off to ascertain if the sheeting is salvageable or requires replacement. Widespread swarf and scratching become an aesthetic issue also as the roof is visible from windows and replacement might be the only viable option in this instance.

The severe grinder swarf areas will likely require replacement sheeting as the swarf is burnt into the Colourbond and won’t be removable without damaging the Colorbond coating.

Reference Images Used In Jacobs Well Roof Condition Report

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