a. Be totally covered by bars or a metal screen, that are fixed to the building with fasteners that can only be removed by the use of a tool. The opening between bars and the horizontal dimensions of openings in a metal screen shall not be greater than 100mm.
b. Be fixed to the building with fasteners that can only be removed by use of a tool so that it will remain closed or will open to a maximum of 100mm.
A 152mm Altair Louvre Window with the Stronghold System and restricted opening to 100mm will comply with AS1926.1-2012 clause 2.6(b).
A 102mm Altair Louvre with the Stronghold System, toughened glass blades and restricted opening to 80mm and a maximum blade length of 600mm will comply with AS1926.1-2007 clause 2.7(a)ii.
NOTE: State and local government authorities may choose to impose stricter local requirements.