1 Wellness is at home Ecosustainable Wooden Floors and Walls Technical Catalogue
2 Marlegno Champion of Innovation 2016
3 The origin of Tavego s name. Nomen, omen. Romans used to say that destiny is already written in names. The word Tavego comes from the contraction of two words: Tavola (board) and Ego. The wood (board), original and pure element, becomes constructive element and produces comfort for the individual (ego).
5 Sustainability Marlegno uses wood that comes only from PEFC certified forests, which guarantee a forest management that respects biodiversity requirements, development of the economic chain, regeneration capacity and maintenance of biological functions. Furthermore, wood is an extremely beneficial material because every cubic meter can store up to 2 tonnes of CO 2, subtracting them to the environment. Local raw materials Marlegno offers the possibility to build structures with wood coming from Italian forests as close as possible to its establishment. In this way it contributes to the development of the local business sector and drastically reduces energy costs associated with transportation.
7 Prefabrication The production of Tavego requires only mechanical connections with wooden or metal elements, carried out with simple equipment and with very low energy consumption (for example, the absence of glues means that no presses are used). The use of prefabricated elements also helps to increase quality controls into the establishment and to transform the construction site in a simple assembly site, reducing on-site operations and timing. Healthiness Tavego is an innovative construction system for indoor spaces: the absence of synthetic glues for production and assembly of panels means a better health condition of the interior spaces for buildings, due to the lack of harmful products such as formaldehyde.
8 Prefabricated Floors D-lam floor TECHNOLOGY: Dowel Laminated Timber (DLT), also known as Brettstapel ELEMENT: Prefabricated panel for structural floors. It s made of a single layer of wooden joists stcked side by side and connected with beech wooden dowels. The instrados is available with different profiles. wooden dowels wooden joists
9 Prefabricated Floors N-lam floor TECHNOLOGY: Nail Laminated Timber (NLT) ELEMENT: Prefabricated panel for structural floors. It s made of a single layer of wooden joists stcked side by side and connected with steel screws. The instrados is available with different profiles. steel screws wooden joists
10 Prefabricated Floors P-lam floor TECHNOLOGY: Prestressed Laminated Timber (PLT) ELEMENT: Prefabricated panel for structural floors. It s made of a single layer of wooden joists stcked side by side and connected with threaded steel rods. The instrados is available with different profiles. threaded rods wooden joists
11 Prefabricated Floors Onda floor TECHNOLOGY: Prestressed Laminated Timber (PLT) ELEMENT: Prefabricated panel for structural floors and roofs, made of a single layer of wooden joists staked side by side and joined with threaded rods and steel screws. The structure is characterized by the particular wavy profile. wooden joists threaded rods steel screws L L L L h h
12 Standard Profiles Marlegno realizes customized profiles for Tavego floors Classic Blunt Alternate A Alternate B
13 Standard Profiles Marlegno realizes customized profiles for Tavego floors Groove Rounded Alternate C Corrugated
14 Prefabricated Bearing Walls Stack wall TECHNOLOGY: Nail Laminated Timber (NLT) Wooden joists stacked side by side and connected with steel nails. The panel is covered by two outer bracing layers available in different materials. wooden joists bracing layer
15 Prefabricated Bearing Walls TAVEGO STACK-G WALL: Single layer of wooden joists stacked side by side and connected with steel nails. The panel is covered by two outer bracing layers made of plaster fiber. TAVEGO STACK-O WALL: Single layer of wooden joists stacked side by side and connected with steel nails. The panel is covered by two outer bracing layers made of OSB4.
16 Prefabricated Bearing Walls Cross wall TECHNOLOGY: Cross Laminated Timber (CLT) TAVEGO CROSS WALL: Prefabricated wooden panel for bearing walls, made of four crossed layers of wooden boards connected with beech wooden dowels. wooden dowels crossed wooden boards
17 Stratigraphy Examples STRATIGRAPHY EXAMPLE n 1: 1. Coating with Rockpanel t = 8 mm 2. Ventilation cavity and wind barrier t = 25 mm 3. Insulation with wood fiber t = 120 mm 4. OSB panel t = 15 mm 5. Structural panel for walls Tavego Stack t = 120 mm 6. Plasterfiber panel t = 12,5 mm
18 Stratigraphy Examples STRATIGRAPHY EXAMPLE n 2: 1. Coating with larch slats t = 20 mm 2. Ventilation cavity and wind barrier t = 25 mm 3. Insulation with rock wool t = 180 mm 4. Structural panel for walls Tavego Cross t = 120 mm 5. Vapor barrier 6. Systems cavity with interposed rock wool t = 40 mm 7. Double plasterfiber panel t = 25 mm
19 Sustainability Technical Data Tavego panels for floors and walls have excellent characteristics of sustainability: Raw materials are PEFC certified; C24 boards come from Italian forests; The presence of mechanical connections guarantees an healthier indoor air; Panels are prefabricated and modular, easy to be removed and can be reused or recycled at 100%. Each cubic meter of a Tavego panel is able to store up to 830 kg of CO 2. Acoustics Tavego panels for floors, thanks to their mass and to the particular form and arrangement of joists, are an excellent solution for improving the acoustic comfort in indoor spaces. Shrinkage and Swelling Wooden panels for walls and floors are generally sensible to changes in Moisture Content (MC), which could cause swellings and shrinkages into the panel. Usually, a variation of 1% of the MC involves, for these types of elements, a dimensional variation around 0.25%. For these reasons, if in the indoor spaces it s not possible to guarantee a relative humidity lower than 70% for temperatures below 18 C, it s necessary to study, during the design phase, floor solutions accurately dimensioned. U.R. (%) MC (%) T ( C) Changes in Moisture Content of wood as a function of relative humidity U.R. (%) and temperature T ( C). [Source: Wood Handbook 2010].
20 Technical Data Floor height [mm] Tavego Floors Type of wood Spruce and silver fir PEFC certified Floor thikness from 120 to 240 mm Strength class C 24 UNI Wood moisture 12% (+/- 2%) Data refering to delivery supply Bulk density 480 kg/m 3 Fire reaction classe D-s2 d0 EN Burning rate 0,8 mm/min EN CO 2 stored 830 Kg/m 3 (1.730 Kg/t) Tavego Cross Walls Tavego Stack Walls Type of wood Spruce and silver fir Spruce and silver fir PEFC certified Layers 4 1 Thickness from 120 mm from 100 mm Strength class C 24 C 24 UNI Wood moisture 12% (+/- 2%) 12% (+/- 2%) PREDIMENSIONING OF TAVEGO FLOORS Calculating the maximum length of the span as a function of load and floor thickness (f=l/300) Charge q [kn/m 2 ] Data refering to delivery supply Bulk density 480 kg/m kg/m 3 Fire reaction class D-s2 d0 class D-s2 d0 EN Burning rate 0,8 mm/min 0,8 mm/min EN CO 2 Stored 845 Kg/m 3 (1.760 Kg/t) 848 Kg/m 3 (1.760 Kg/t) 2,00 2,50 3,00 3,50 4,00 4,50 5,00 5,50 6,00 6,50 7,00 7, ,9 4,6 4,3 4,1 3,9 3,8 3,6 3,5 3,4 3,3 3,2 3, ,6 5,3 5,0 4,7 4,5 4,4 4,2 4,1 4,0 3,9 3,8 3, ,4 6,0 5,6 5,4 5,1 5,0 4,8 4,7 4,5 4,4 4,3 4, ,1 6,6 6,3 6,0 5,8 5,5 5,4 5,2 5,1 4,9 4,8 4, ,7 7,3 6,9 6,6 6,3 6,1 5,9 5,8 5,6 5,5 5,3 5, ,4 7,9 7,5 7,2 6,9 6,7 6,5 6,3 6,1 6,0 5,9 5, ,1 8,6 8,1 7,8 7,5 7,3 7,0 6,8 6,7 6,5 6,4 6,2
21 Certification System LEED Credits LEED, Leadership in Energy and Environmental Design, is a certification system that provides requirements for the design, construction and operation of environmentally sustainable buildings, both from an energy point of view and from the point of view of the consumption of all environmental resources involved in the realization process. regional priority sustainable sites water efficiency energy and atmosphere indoor environmental quality innovation materials and resources The LEED rating system is divided into 7 sections organized into prerequisites and credits. The prerequisites of each section are required so that the entire building can be certified; credits can be chosen depending on the characteristics of the project. The sum of the scores of credits determines the level of certification achieved. It s therefore important that the products that compose the building show with the utmost transparency their compliance with the LEED rating criteria and the contributions they can make to the satisfaction of the credit sough.