roof conversions and extensions using CLT BBS

Urbanisation has been rapidly increasing in recent years. The process of urbanisation has been evident for centuries and reached a first peak in the late 20th century. In 2008, more people around the world lived in towns and cities than in the countryside and this process is set to continue. The United Nations calculates that 5 billion people will be living in urban conurbations by the years 2030. POPULATION GROWTH IN CITIES Cities Year 1995 2005 2015 2025 Copenhagen 1,048 1,127 1,268 1,395 Manchester 2,308 2,434 2,646 2,868 London 8,323 9,119 10,313 11,207 Munich 1,241 1,254 1,438 1,533 Hamburg 1,707 1,739 1,831 1,892 Unit in million inhabitants Source: United Nations, Department of Economic and Social Affairs, Population Division (2014). World Urbanisation Prospects: The 2014 Revision Roof conversions and extensions can create homes and workplaces where the available space is now limited and expensive, as is the case today in cities and conurbations. This form of post-densification of the urban space preserves building land, utilises the existing infrastructure and promotes social mixing within buildings. TYPES OF ROOF CONVERSIONS AND EXTENSIONS Addition One or more additional floors Partial addition One or more additional floors, staggered floors Addition with overhang One or more additional floors Addition with enclosure of the existing building Horizontal and vertical space gain, major design freedom 5% 10% 15% 20% 25% 30% 35% Copenhagen Manchester London Munich Hamburg 2005 2015 2025 binderholz ROOF CONVERSIONS AND EXTENSIONS