The existing bay off the kitchen did not work. The south facing glass roof combined with french doors only opening to 90 degrees caused overheating. The space felt enclosed even though it was fully glazed.
The new Glass Box has a zinc clad roof ( to match the Studio ), two side sliding pocket doors ( 3.2m high ) and two front sliding doors ( 3m wide x 3.2m high ).
It offers various opening options from minimal cross ventilation to full garden access.