Louvres

Louvre Windows are designed for harsh environments. They seal tightly to keep rain and draughts out. They are rated for use in cyclonic areas. And they are manufactured exclusively from non-corrosive materials. Fully open, louvre blades are close to horizontal. This means they provide very little resistance to the air entering through the window opening. In effect, you get twice as much ventilation as you would through a same sized sliding window or double hung window.