The Outrigger Resort Centre on Hamilton Island in the Whitsundays is the latest to use BlueScope Lysaght roofing solutions for beachfront buildings.
Lidoran Architectural Roofing was contracted by Hamilton Island Enterprises for the re-roofing job. Exposure to the elements over the years had caused the existing cedar shingles to warp and deteriorate. This led to a number of roof leaks, especially during the wet season.
The project involved the removal of the cedar shingles and their replacement with 5,100m2 of Lysaght Custom Orb in 0.48 mm Colourbond Ultra in the colour Woodland Grey which was selected for its strength and suitability within close proximity to coastal regions.
Lidoran Architectural Roofing operations manager, Wayne Podlich says: “One of the most labour intensive tasks of the whole project was the removal of the shingles. The hardwood battens also had to be cut out and replaced with Lysaght Topspan 61 battens in 0.75 mm Zincalume steel.”
The resort centre roof consists of three towers with a pitch of 45 degrees sloping up to 62 degrees. “Working at this angle meant the fixers had to secure their safety harnesses through the skylight void,” Podlich says. “It took 24 men two weeks to complete the first two towers, and two tip trucks were needed to transport the cedar shingles to the green waste recycling plant.”
The 13.5m long Custom Orb sheets were roll formed at the BlueScope Lysaght branch in Mackay then loaded onto a barge at Shute Harbour for the one-and-a-half hour trip to Hamilton Island. Due to the tropical location of the resort and its potential exposure to cyclonic winds, the fixing task involved 16 screws and concave cyclone washers per square metre to secure the roof sheeting to the Topspan 61 battens.
Extensive flashing work was required to seal the roof space from wind and water. The flashings, some of which were made in Sydney and shipped via truck to the barge, were scribed and scalloped on site by the Lidoran crew to follow the roof contour.
