David Wheeldon . Articles Sydney Tower radiates red with city's biggest sky sign [video] The largest and most visible sky sign in Sydney has been attached to the side of Sydney Tower. Malaysian timber use sparks controversy in Sydney The media has pounced on a discovery that a major Sydney development may be jeopording its 5 Green Star rating by using rainforest timber from Malaysia. Mud brick building industry scuffled by 6 Star ratings The implementation of 6 Star ratings for homes is threatening to put the earth building industry out of business. Architectural and Interior wins at Australian International Design Awards 2011 An ergonomic task chair called Sayl, designed by Fuseproject for Herman Miller, has won the Architectural and Interior Products category at the Australian International Design Awards 2011. Global Round Up There were major stories out of the UK this week, with the announcement of Stirling Prize and RIBA Lubetkin Prize finalists, there were also impressive international awards wins for Australian firms, and some interesting news from Scotland and the Sub-continent. Sydney architecture festival calls for moving pictures As part of the Sydney Architecture Festival, Expanded Architecture 2011 is inviting proposals for collaborative, site-specific moving image projections.