Naughtons Gap 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. Also provide recommendations to extend longevity.
Inspection Site Gallery
Findings & Recommendations Report For Naughtons Gap Roof Inspection
- No underseal provided to any of the flashing joins, non-compliant to SA HB 39 refer 5.8.3.
- Valley width is non-compliant to NCC 2016 refer 3.5.2.4, minimum 400mm is required with a roof overhang of 150mm.
- Fastener missing.
- Aerial coax cable penetration is heavily reliant on silicone which has no longevity, non-compliant to SA HB 39 refer 8.6.1. All penetrations must be flashed. Dektite required.
- Ingress is occurring in one of the bedrooms, this penetration is likely cause as there is nothing else in the immediate area. Unable to determine the exact cause as I could not remove the solar panel.
- Solar panel install has the supports on a large angle making it impossible to give a weatherproof seal to the roof, potential for ingress to occur in these areas.
- Minor debris in the eaves gutter.
- Concerns the weathering of the sheets is not sufficient as some of the sheet pans appear to not have been turned up correctly.
- Existing downpipe spreader is noncompliant, although unlikely to cause issue.
- Aerial coax cable penetration is heavily reliant on silicone which has no longevity, non-compliant to SA HB 39 refer 8.6.1. All penetrations must be flashed. Dektite required. See item #4 for compliance.
- Foot traffic damage.
Building & Installation Code References from Naughtons Gap roof inspection report:
5.8.3 Fastening and sealing with sealants
Joints in aluminium/zinc, aluminium/zinc/magnesium alloy-coated steel, prepainted steel flashing and cappings are to be fastened at intervals not exceeding 40mm and silicon seales with neutral cure silicone sealants.
Sealants are to be sandwiched between the laps of the joint to provide a positive seal and to protect the silicone sealant from exposure to ultraviolet radiation.
8.6 PENETRATIONS
8.6.1 Collar Flashings
Where any part of the roof surface is penetrated by any pipe, pole, duct, flue, shaft, cable or tank support, the penetration is to be flashed to prevent the entry of rainwater, and to permit the roof surface and penetrating object to expand and contract without detrimental effect to any part of the roof. In addition, particular attention is to be paid to the following:
a) Pondage Colar flashing to permit the total drainage of the area above the penetration