SUSTAINABLE BUILDING DESIGN
A sustainable structural solution Sustainable options were also fully considered for the structural engineering solution and a joined-up approach was taken across the engineering team and the whole of the design team. The team investigated and specified vibro stone columns to be used to treat the ground. Further analysis work by specialists
proved the viability of this method and subsequently vibro stone columns were used instead of concrete piled foundations saving embodied carbon and costs to the project. The superstructure was load-bearing
blockwork, with steel transfer beams where required, and the floors were formed from prestressed, pre-fabricated hollow core floor concrete planks, which are a lower carbon option than solid concrete or composite floor systems. The roof was provided by a timber
specialist to form an efficient trusses system to form the geometry required to enable the sustainable ventilation system to operate and architectural features were formed from efficient combinations of masonry and steelwork.
Construction phase During the tender review stage, a key factor in the selection of a suitable contractor was the responsible sourcing of construction materials and waste management. The successful contractor, Speller Metcalfe, provided certification to this effect and offered further assurances during the tender interviews, which included the responsible sourcing of Forest Stewardship Council-certified timber and recycled aggregates. The building was constructed with
high performance building fabric, which significantly reduced heat losses in the winter and acted as thermal storage in the summer to reduce heat gain. This ensured the building only needed a small heating load from the renewable energy system and did not require additional active cooling measures which greatly reduced the building’s energy consumption. Together with specifying insulation,
materials and finishes which offer improved air tightness, this contributed towards a significant reduction in carbon emissions and low flow sanitaryware was selected to reduce water consumption throughout the building. Waste
management and recycling was also site managed with segregated waste disposal and regular collections for recycling.
Engagement across the whole project team Organised and efficient construction management from Speller Metcalfe and early engagement and co-ordination with specialists, meant that we were able to fully comply with adopting a BIM (building information modelling) level 2 approach in the design process, running clash detection software and ensuring design collaboration between all disciplines.
ONE is a multidisciplinary design
company and so the civil & structural engineers and mechanical & electrical engineers were all within one design studio and so could easily liaise at all times. Our engineers also regularly collaborated with the team at Solihull Metropolitan Borough Council. That included regular meetings and
design co-ordination workshops to resolve issues and develop strategies throughout the design stage using 3D modelling software and our interactive SmartScreen to mark up and record comments/observations as the designs developed.
Challenges included the fact that
access to the site was shared with local businesses. This prompted discussions between neighbouring business and
The building was constructed with high performance building fabric, which significantly reduced heat losses in the winter and acted as thermal storage in the summer to reduce heat gain
IFHE DIGEST 2022
the contractor to arrange for vehicle movement, which included manoeuvring a large borehole drilling rig capable of depths in excess of 100 metres through the rear of the site. This would not have been possible without open communication and careful logistical planning.
Conclusion This new build care home in Tanworth Lane, Shirley has replaced an existing facility in the borough and is providing the highest level of care to residents to allow them to live as independently as possible. The home consists of 60 apartments, a bistro/café, central seating area, multi- purpose room, laundry and administration offices.
All sustainable opportunities were
explored with the needs of the end-users being paramount and guidance within the EPBD and NZEB were incorporated. The outcomes of this project were:
l A highly efficient building with an EPC rating of 17A, a reduction of 48.6 tonnes of carbon dioxide per annum, with payback periods of seven years, which will help will help the public purse and protect front-line services.
l An award-winning building that will act as exemplar for further development for the council and a project template which can be replicated in the healthcare sector.
We take our responsibilities seriously and are committed to doing more. The company is proud to have been shortlisted in many sustainability awards and the project won the 2019 Healthcare Estates Sustainable Achievement Award, the Sustainability Award at Insider’s West Midlands 2020 Property awards and the sustainability category at the Constructing Excellence 2020 West Midlands awards and went forward to the national finals.
IFHE 107
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