NEWS RESIDENTIAL
Scottish CLT scheme sets a precedent
At seven storeys, construction firm CCG (Scotland)’s recently completed Ellerslie Road development is being hailed as Scotland’s tallest timber building. It is also Scotland's first multi-storey domestic CLT building, and its Building Warrant approval has set a precedent in Scotland as a result of evidence supplied to Building Standards Scotland, Glasgow City Council and Scottish Fire & Rescue Services.
Built on the banks of the River Clyde at
Yoker, a town just west of Glasgow, Ellerslie Road provides 42 one, two and three bed contemporary mid-market rent apartments for Sanctuary Homes, part of Sanctuary Group. The new building, which was designed by MAST Architects, optimises the efficiency of CLT with six apartment modules arranged around one central stairway in a ‘T’ shaped form. Apartments are designed around a standard template used by CCG for all residential units, however CLT’s ability to achieve long, uninterrupted spans allowed for a flexibility in the layout of apartments from floor to floor which would have been more constrained with traditional forms of construction. Engineer Smith and Wallwork were responsible for the design of the CLT
superstructure, working collaboratively with Eurban at detail design stage to ensure a smooth offsite manufacture and onsite assembly process. The entire superstructure is built from Stora Enso PEFC certified CLT including the common areas and lift shaft. The lift shaft’s structural walls are formed by 100 mm thick CLT panels tied together to form a rigid tube with the shaft independent from the CLT separation wall between lobby and apartment. The shaft is restrained laterally at each of the seven floor levels, with the panels forming the lobby slab and capped with a 120 mm thick CLT ‘lid’ used to fix the hooks to install the lift without the need for any steel lifting beam. A bespoke platform is used to support the superstructure due to the lightweight nature of CLT and the exposure to wind loadings along the river. The superstructure includes design features to provide enhanced resistance to disproportionate collapse, and this has encouraged the Institution of Structural Engineers (IStructE) to start a review process for Part A3 –‘Building Regulation Disproportionate Collapse’ as it has recognised that there are a number of forms of construction that would benefit from a review. 1240 m3
of CLT was used in the
MSc on timber architecture launched EDUCATION
Edinburgh Napier University has introduced an MSc on Timber Architectural Design and Technology – thought to be the first of its kind in the UK. The programme is designed for
graduates in architecture, architectural technology and other construction professions who want to become part of the growing international move towards innovative and high-performance timber building. The MSc will equip students to work as
a design professional within the timber sector – one of the fastest growing parts of the building industry in many countries around the world. The programme has been developed
by Edinburgh Napier’s Institute for Sustainable Construction in consultation with professional bodies and the timber industry. Institute director Professor Sean Smith
said: “Our market research shows that employers in the UK timber building
© CCG (Scotland) construction of Ellerslie Road, which
equates to a total of 757 tonnes of CO2 being removed from the earth’s atmosphere. Other key benefits of building with CLT include the material’s inherent air-tightness and thermal properties, which mean that residents will benefit from energy savings when compared to traditional methods of construction. Solar PV panels have also been installed on the roof providing long-term energy savings on residents’ energy bills.
Building with CLT resulted in reduced construction time thus minimising impact on the surrounding community, with the entire seven-storey superstructure installed and wind and watertight in just 16 weeks. Ellerslie Road is the subject of two academic research programmes looking at factors including CLT’s airtightness, acoustics, thermal performance, productivity, LCA/whole life costing, and the building’s interaction with wind.
sector are facing severe skills shortages and similar gaps exist in many countries overseas.” He added: “These employers are
looking for graduates with a combination of technical know-how and commercial awareness in the design, manufacture and assembly of timber buildings and struc- tural systems. We have designed the programme to address this demand.” The university said that graduates of the
programme will be “equipped for employ- ment in design-build firms, fabricators, builders and developers; along with professional and technical roles in the associated architectural and engineering consultancies”.
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ADF AUGUST 2018
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