Article from CIBSE Journal September 2015 portraits a project of Enterprise Center in Norwich as an commercial building aiming to achieve BREEAM Outstanding and passive house certifications. The total area is 3,400 m2 and the floor-to-ceiling height is 3,3 m to create sufficient volume to cope with temperature rise and ensure enough daylight.
The building is built from 70% of bio-based materials and equipped with 480 m2 of photovoltaics panels. The building is wrapped in thatch composed of 250 mm thick layers of straw set in unique timber-cassettes. The building sits on a 375 mm thick concrete (made of 38% embodied carbon) raft foundation incorporating three layers of 98% recycled steel reinforcement and incorporating a special polystyrene insulation. The E-shaped building maximizes the amount of daylight through triple glazed windows and it is built to minimize embodied energy and life-cycle costs.
The building is equipped with demand controlled ventilation system controlled by occupancy and CO2 sensors via three ventilation plant rooms: in each of two wings and in a central auditorium. The 300 seats auditorium also has a small cooling unit for comfortable temperature in summer.
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