The Environment-Friendly Architecture Come Through Wooden Architecture

If you have a building well designed, with bioclimatic approach, NZEB, and you want to change step-by-step building design in way to achieve higher scores in an environmental appraisal system, qualitative type as BREEM or Italian ITACA, or quantitative type, as those based on LCA Method and with use of software GaBi or SimaPro, you invent that you can’t go further 4.3 on 5 or so on, also if the building is comfortable, good enlighten by the sun and built with reused and recyclable materials; and primary energy balance is ever negative. And that, also if the functional phase is about 87 % of GWP, 94 % of ODP and 71 % of EP. The only way to achieve a full score, 5 on 5, that is a positive primary energy balance at least of some of analysis factors, is to build with materials from renewable sources, which is in wood. In Basilicata, local woods are hardwoods: there are some 4 million cubic meters of Quercus Cerris timber tree, and they grow at the rate of 2,40,000 cubic meters per year. With appropriate hygro-thermal conditioning, according to a protocol drawn by Authors in the La.Te.C. Laboratory of Engineering School of Basilicata University at Potenza, this hardwood allows to realize glued laminated timber beams which can work with bending tension of 40.9 N/mm², much more than normal elements in resinous glued laminated timber. This new material can be combined with new structural earthquake-resistant moment resistant timber frame with post tensioning and energy dissipating system, developed by Prof. F.C. Ponzo and other Researchers in SisLab Laboratory of Engineering School of Basilicata University and by Department of Civil and Natural Resources Engineering of University of Cambridge, Christchurch, New Zealand, and in this way is possible to realize high rise framed buildings, which can resist to more violent earthquakes, with a positive ecologic balance.