ROOFING

CUSTOM ORB ROOF SHEETING – Min. 5º Pitch

  • Temporary – roof perimeter guard rail (Where there is a possibility of falling 3m or greater) W.A Code of Practice for the prevention of falls in the workplace – 2004
  • Subcontract labour – Roof Plumber
  • Roof - steel corrugated - colorbond - 0.42mm BMT
  • Roof sheeting - barge capping steel - 0.55mm BMT extra for barge cap in steel – colorbond
  • Roof sheeting - ridge / hip capping steel - 0.55mm BMT extra for ridge/hip cap in steel – colorbond
  • Roof insulation blanket – Bradford Anticon 60 - glasswool - blanket - R 1.3 - 60mm thick
  • Sarking – Bradford Thermoseal – Starter strip

ROOF TILES CONCRETE – WITH SARKING – VARIOUS PROFILES

  • Temporary – roof perimeter guard rail (Where there is a possibility of falling 3m or greater) W.A Code of Practice for the prevention of falls in the workplace – 2004
  • Subcontract Labour – Roof Tiler
  • Conveyor Hire – Electric/Petrol
  • Anti-Ponding Board – Fibrecement - 275mm x 4.5mm (attached to top of fascia and rafters, allowing a minimum 50mm clearance between APB and first tile batten)
Note: a) An anti-ponding device/board must be provided - i) on sarked roofs with a pitch less than 20º; and ii) on all roof pitches where there is no eaves overhang, regardless of whether sarking is required.b) An anti-ponding device/board required by (a) must be water resistant and fixed along the eaves line from the top of the fascia back up the rafter with a clearance of approximately 50mm below the first batten.
BEST PRACTICE NOTE - To prevent water flowing into eave lining due to sarking sag, we recommend ALWAYS using an anti ponding board on tiled roofs with sarking. We also ALWAYS recommend sarking under all roof coverings.
  • Sarking – Bradford Thermoseal
NCC 2019 VOLUME 2 – 3.5.2.4 Sarking Sarking must— (a)be provided in accordance with Table 3.5.2.2; and (b)comply with AS/NZS 4200.1 and be installed with— (i)each adjoining sheet or roll being— (A)overlapped not less than 150 mm; or (B)taped together; and (ii)sarking fixed to supporting members at not more than 300 mm centres; and (iii)no sags greater than 40 mm in the sarking.
  • Pine Battens – 38mm x 38mm or Hardwood 50mm x 25mm @ 355mm Centers
  • Roof tiles Concrete – 432 x 355mm
  • Roof tiles Concrete – Hip/Ridge/Barge tile – Bed and Point – Hip Ridge tile/Top Ridge tile/Barge tile/ 3 way Apex tile
CLICK HERE TO DOWNLOAD OUR ROOFING AND ROOF PLUMBING BEST PRACTICE GUIDE