Introduction
Constructed in the early 1990s as a purpose built office complex, 1 Wythall Green was an innovative design built with modern materials and techniques. Some 30 years after opening, elements of the building have almost reached the end of their service life and in need of replacement, in particular the large glazed roof atria which was leaking.
Objectives
COX were appointed to undertake a full roof condition survey and prepare a design and specification for remedial/upgrade works. During the design process COX provided a design option to incorporate renewable technologies into the roof replacement. The building owner, an international pension and insurance company, were keen to explore these options and help meet their Carbon reduction targets.
Approach
COX provided a feasibility and full technical design for semi-transparent photo-voltaic (PV) modules to be incorporated within the atria rooflight frames to supply the building with self-generated electricity. This design resulted in a new product being developed using PV modules from Spain and collaborating with the commercial arm of Velux. The client approved the design, and a contractor was procured to undertake the project. COX provided construction stage design support and on site monitoring to ensure the works were completed to the required standards.
At practical completion the project resulted in the creation of one of the largest BIPV semi transparent glazed atria in UK and Europe.
Services Provided
- Condition survey assessment and reporting.
- Design and specification
- Energy assessment
- Tender management and contract procurement
- On site monitoring and reporting
Project Cost
- £9 million
Project Duration
- 48 weeks across 3 phases
Key Project Roles:
- Client – Phoenix Group
- CBRE – Main contractor
- NRA Roofing – Sub-contractor
- Velux – Rooflight manufacturer
- Onyx Solar – PV glass supplier
