[Working Detail 29.09.11] East elevation of the Angel Building
Clear glass bays six metres-wide have black metal spandrels that extend 800mm from floor level to desk height. These horizontal elements are layered behind fine black aluminium vertical fins that run the full height of the facade.
The fourth floor glazing cants outwards by seven degrees to reflect trees opposite and enhance views of the building from Upper Street and St John Street.
The facade at fifth floor level has white enamel frit copings and transoms, creating a striking contrast with darker finishes to the lower floors.
Glare from sunlight is reduced by fritting on glass above eye level, with 15mm wide strips of enamel frit alternating with 15mm strips of clear glazing with Ipasol Neutral solar coating. Motorised opening windows offer direct control of ventilation and temperature.
The curved extension to the St John Street facade follows the broad sweep of the road, creating a complex junction where this straight facade meets the curved geometry.
Berta Willisch, architect, Allford Hall Monaghan Morris
Facade detail, The Angel Building, by AHMM