The challenge here was to provide a large sail structure (30 x 10m) held in place by an aluminium extension on the existing building and tensioned to 8 masts on the river frontage. The masts are each held in place by 2 x 22mm SS rods with opposite threads. The resultant triangles mean that the masts have integrity even if the sail is not attached.
We had not foreseen the amount of water draining down from the sides of Waterloo bride or the frequency with which smokers would drop their cigarette ends. The fabric is fully fire retardant and the tiny holes are scarcely visible (we have added some "leaf" shaped patches).