have used double tension tied down prestressed bar trusses at medium scale and then at a huge scale to span 35m with no bracing in the plane of the glass .
The shape of the roof lights are tilted cylinders sloping up from the centre and having an oval shape when viewed from above . The glass
is SIGU ’ s using thin Fritted Fully Toughened Glass in the outer . This outer is designed for hail resistance on the basis it breaks the hail and not the other way around ! The inner glass is a thicker laminated glass that supports the outer glass on a bubble of insulating gas inside the SIGU ’ s .”
526 1 Discovery Place