• First floor and roof decks are of cross-laminated spruce panels manufactured in Austria. Exposed partitions are also made of these panels.
• Douglas fir structural veneered lumber (SVL) from Germany was used for the mullions and transoms of the timber-framed glazing system. To maintain a consistent palette of materials, SVL was also used to construct the helical staircase and major items of furniture such as the reception desk and bar. SVL is made of thin veneers of timber (approx 2mm wide), glued together to form large sheets.
• Vertically lapped, untreated Scottish larch boards fixed on battens act as a rainscreen cladding system designed in consultation with TRADA Technology to ensure minimal maintenance and easy replacement of the boards.
• The helical staircase continues the horizontally layered emphasis of the building’s design. It is constructed from SVL sheet, cut and bonded together to form solid treads and curved balustrade, and reinforced with vertical steel bars.
• Tables in the restaurant were cut from seasoned logs felled in the garden itself. They join together to form large ‘composite’ tables in the evenings.
A sustainable, low-energy, minimum-waste approach to the building’s design was part of the message the garden wished to convey to its visitors. The Gateway has many demonstrable environmental solutions, including the extensive use of timber. They include a biomass boiler, a green roof, rainwater harvesting, a wind turbine, photovoltaics, solar collectors for hot water, natural ventilation and passive night-time cooling. The sedum roof reduces heat gain to the building in summer, slows down rainwater run-off and provides an extra blanket of insulation. The design of all these elements is explained in the permanent exhibition on the ground floor of the Gateway - this engagement with the public is an important contribution to the project.
Project information Client:
Architect(s):
Main Contractor: Contractor(s)
Structural Engineer(s):
Royal Botanic Garden, Edinburgh
Edward Cullinan Architects Max Fordham
Xircon, Elmwood, Ben Dawson Buro Happold
Timber Sub-contractor(s): Donaldson & McConnell [Extract from a case study at
www.trada.co.uk].
TRADA’s vision is to develop concepts and product solutions which shape the market
TRADA vision at a glance
TRADA’s aims include: • To facilitate connections between suppliers and specifiers, producers and users to encourage better use of timber throughout the supply chain
• To help develop timber’s position as the pre-eminent material for sustainable construction
• To become known worldwide as the best source of knowledge on timber and its application in construction
Sheffield Winter Gardens ENVIRONMENT INDUSTRY MAGAZINE |127|
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