Dakabin Roof Inspection Purpose:
Provide a roof condition report to AS 1562.1 AS 1562.3 And SA HB 39 2015 The Installation Code for Metal Roofing and Walling Provide recommendations to extend longevity.
Inspection Site Gallery
Findings & Recommendations Report For Dakabin Roof Inspection
- Minor cracking to pointing at the barge capping shown, potential for future ingress and further deterioration if not repaired in the near future.
- Minor cracking to pointing at the ridge capping shown, potential for future ingress and further deterioration if not repaired in the near future.
- Ingress point unit 113. No damage to tiles or evidence of potential ingress from the roof leads to the conclusion that the ingress is likely occurring from the eaves guttering and valley likely overflowing due to the excessive buildup of leaf debris in the guttering.
- Eaves guttering needs to be cleaned of leaf debris to eliminate this as a potential cause of ingress
- Unit 114 also has severe leaf debris build up in the eaves guttering and the valley at the same areas as unit 113.
- It would be prudent to clean the guttering out at the same time as unit 113.
- Downpipe spreader is non-compliant to SA HB 39 refer 5.7.7. Spreader is discharging onto the lead flashing and has minor potential for ingress.
- Cracking to overlap the roof tile, should not cause ingress, although it would be prudent to replace the tile.
- Minor cracking to pointing at the ridge capping of the lower front roof, potential for future ingress and further deterioration if not repaired in the near future.
Building & Installation Code References from Dakabin roof inspection report:
- Spreaders may be used to drain rainwater from a higher roof surface with a catchment area not exceeding 15 m provided the following conditions are satisfied:
- When discharging onto a tiled roof, the low section is sarked to a minimum width of 1800mm, either side of the point of discharge extending down the eaves gutter.
- When discharging onto a corrugated roof, a minimum with of 1800 mm on either side of the point of discharge is sealed for the full length of the side laps.
- The increased roof water volume from the upper roof is not to enter any seam of the roof coverings of the lower roof.
- No spreader is to discharge roof water onto or orver ridge tiles, mortar jointed tiles, flashings, timber fascia or a roof sheet side lap.
- No spreader is to have its discharge entering any part of any building
- Spreaders are to discharge all roof water onto roof coverings in the direction of flow, avoiding discharging onto laps on lower roof sheets and tilesWhen discharging an upper roof catchment onto a lower roof, the total roof area including the additional upper roof catchment area is to be considered for inclusion when sizing the lower roofing, gutters and downpipes.
- Spreaders to not discharge on sheets or tiles discharging to valleys