Glue-Free Structural Wooden Elements Bioarchitecture PREFABRICATED WOODEN BUILDINGS a B a E I D Te R R a O B Ss Om O - Milano - L

Technology and wood made in Italy

Glue-free structural wooden elements bioarchitecture PREFABRICATED WOODEN BUILDINGS A b a e i d te r R a o b ss om o - Milano - L

Shorten the distances, help the environment

The origin of Tavego®’s name. Nomen, omen. The 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). TAVEGO® SAVES THE ENVIRONMENT

Today, more than ever before, we must find We must act before the CO2 concentration in ways to reduce the pressure on our planet’s the atmosphere can cause irreversible climate environment and its limited resources. changes that lead to water shortages, reduced Construction industry is one of the sectors crop yields and to the extinction of more that cause most of the CO2 emissions released animal and plant species. into the atmosphere: by choosing low- impact products and reducing waste we can have a real impact on climate changes right now.

The need for action is particularly pressing today as the world’s population and the standard of living are increasing in many countries. Just think that CO2 emissions increased by more than 30% in the latest 150 years.

Source: Tackle Climate Change: Use Wood, CEI-Bois

CO2 emissions are the main cause of climate changes TAVEGO® SAVES THE ENVIRONMENT

Wood: An extraordinary material

It grows as a tree and, through the process of photosynthesis, it provides the greatest support to

the environment: it absorbs carbon dioxide (CO2)

to produce oxygen (O2), essential for every living organism. Photosynthesis transforms approximately 115 million tons of atmospheric carbon in biomass every year!

Moreover, wood is a real “CO2 store” because it holds the carbon absorbed by the tree without re- leasing it into the atmosphere.

Each cubic meter of wood can store 0.9 ton of carbon dioxide!

Emissioni nette di CO2 per vari materiali da costruzione

Net emissions of CO2 including carbon sink effect

30000 27.000 Every cubic metre of wood used as a substitute for other building materials reduces CO emissions to 25000 2 the atmosphere by an average of 1,1 t CO2. 20000

3 17.000 If this is added to the 0,9 t of CO2 stored in wood,

e/m 15000 2 it means that each cubic metre of wood saves a total of 2 t CO .

kg CO 2 10000 4.000 5.000 Basing on these data, a 10% increase in the percen- 5000 500 200 tage of wooden houses in Europe would produce - 900 0 sufficient 2CO savings to account for about 25% of BloccoLight di MattoneRed AlluminiumAlluminio RecycledAcciaio AcciaioSteel PVCRigid rigido PVC LegnoSawn the reductions prescribed by the Kyoto Protocol! cementoconcrete rossobrick riciclatosteel Timber -5000 alleggeritoblock Source: Tackle Climate Change: Use Wood, CEI-Bois

3 0,9 t stored + 1,1 t saved = 2 t CO2 /m removed from the atmosphere TAVEGO® SAVES THE ENVIRONMENT

Life Cycle Assessment The Life Cycle Assessment (LCA) is an analytical method for the evaluation of the environmental impact of materials, construction methods or buildings, that considers their whole life, from the extraction of raw materials to production, distribution, use and disposal. This method quantifies the impact connected to the following areas: Resource depletion Human health Environmental conservation The main parameters of a LCA are: ● Global Warming Potential ● Ozone Depletion Potential ● Potential depletion of raw materials ● Potential depletion of energy sources ● Ecotoxicity of water and soil ● Acidification potential ● Toxicity to humans ● Eutrophication Carbon Footprint

With regard to the Global Warming Potential, the central element is the carbon dioxide and CO2 emissions, made by products, are better known as “Carbon Footprint”.

The main phases of the wood life cycle for the calculation of Carbon Footprint are the following:

Production Phase

Extraction Transport Production

InUse Phase Use Maintenance Energetic consumption

End-of-Life Phase Recovery/Reuse Recycling Disposal

Source: Tackle Climate Change: Use Wood, CEI-Bois TAVEGO® SAVES THE ENVIRONMENT

ECO-FRIENDLY TAVEGO®

TAVEGO® is an innovative construction system in which floors and walls are made of panels composed of wooden boards overlapped and 300 Km joined together by wooden dowels or screws, without synthetic glues. The raw materials come exclusively from Italian PEFC certified forests. These characteristics make TAVEGO® a real friend for the environment. Raw materials come from forests within 300 Km

3 CO2 emissions for the realization of TAVEGO® [kg CO2/m ] Calcolo: Emissioni di CO2 per la realizzazione di TAVEGO®

Log from Italian PEFC certified forests Tronco proveniente da foreste italiane certificate PEFC

Transport, processing and drying in local sawmill Trasporto, lavorazioni e essicazione in segheria locale

Transport to Marlegno from sawmills within 300220 km Trasporto in Marlegno da segherie nel raggio di 200 km

Assembly in Marlegno, with simple processing, and Assemblaggioprefabrication in Marlegno, of wall/floor con lavorazioni semplici e prefabbricazione parete

Addition of amagnetic stainless-steel screws Aggiunta di viti amagnetiche in acciaio inox

00 500500 10001000 3 kg CO2e/m

3 TAVEGO® = 848 kg CO2/m saved TAVEGO® SAVES THE ENVIRONMENT

GUIDELINES

1. Use of local raw materials 7. REUSE - RECYCLING - DISPOSAL The use of local raw materials from Italian At the end of the life cycle of a building, certified forests promotes a sustainable fo- Tavego® can be easily reused as structural rest management. panel, recycled for the production of other wooden elements or brought in a thermal 2 LOWER ENERGY COSTS DUE TO TRAN- power plant for the production of green SPORTation energy. The purchase of wood from Italian forests, close as much as possible to the proces- 8. INDOOR AIR QUALITY sing centre (radius maximum of about 300 The absence of synthetic glues generates km), allows a reduction in energy costs a better indoor air quality thanks to the and environmental impact due to tran- lack of some harmful products such as for- sportation. maldehyde or similar.

3. PRoDUction/PREFABRICATION 9. Life Cycle Assessment The production of Tavego® requires only Tavego® has particularly reduced coeffi- mechanical connections of wooden ele- cients of environmental impact because

ments through dowels or screws, carried it’s thought to minimize the CO2 emis- out with very low power consumptions sions and the use of non-renewable ener- (for example there are no presses for the gy during all its life cycle (production, as- activation of adhesives). The use of prefa- sembly, use and disposal). bricated elements also turns the construction site into a simple site of assembly, re- 10. SOCIAL RESPONSIBILITY ducing on-site operations and timing. a. Innovate the construction industry by pla- cing, as starting point, the analysis of the 4. GLUE-FREE impact on the environment (LCA) of each Tavego® is assembled only through wo- building to minimize the greenhouse ga- oden dowels or screws. There are no syn- ses emissions. thetic adhesives deriving from petroleum. b. Change the end-user expectations in terms of performance: design in function 5. AESTHETIC QUALITIY AND HIGH PER- of the environmental impact. FORMANCES The innovative Tavego® system is able to c. “Re-evaluate and rediscover” the local fo- combine structural stability, high aesthetic rests and their cultivation with significant quality and internal comfort. Tavego flo- social and economic benefits. ors, with their visible structure, are a per- d. Put again at the centre of the design man, fect example of this harmonization. nature and welfare.

6. STRUCTURAL STABILITY Tavego® is structurally stable with a particularly reduced section: the use of the mi- nimum quantity of raw material prevents wastes! tavego ® STRUCTURAL WALL prefabricated bearing wall TAVEGO® CROSS-D WALL Type: overlaid boards with crossed stratification and wooden dowels Stratigraphy: 4 crossed layers (v-d1-d2-v) Thickness (mm): from 120 Connections: beech wooden dowels Main features: prefabricated panel for load-bearing wall, without synthetic glues Wall size: prefabricated project (standard module =120 cm)

TAVEGO® CROSS-S WALL Type: overlaid boards with crossed stratification and amagnetic steel screws Stratigraphy: 4 crossed layers (v-d1-d2-v) Thickness (mm): from 120 Connections: amagnetic steel screws - AISI300 series Main features: prefabricated panel for load-bearing wall, without synthetic glues Wall size: prefabricated project (standard module = 120 cm) prefabricated bearing wall TAVEGO® STACK-W WALL Type: side-by-side boards covered with panelling, connected with amagnetic steel screws and braces Stratigraphy: 1 central nucleus made of side-by-side boards + 2 outer layers made of wooden paneling laid diagonally Thickness (mm): from 120 Connections: amagnetic steel screws - AISI300 series Main features: prefabricated panel for load-bearing wall, without synthetic glues Wall size: prefabricated project (standard module 120 cm)

TAVEGO® STACK-G WALL

Type: side-by-side boards covered with panelling, connected with amagnetic steel screws and braces Stratigraphy: 1 central nucleus made of side-by-side boards + 2 outer layers made of plaster fiber Thickness (mm): from 120 Connections: amagnetic steel screws - AISI300 series Main features: prefabricated panel for load-bearing wall, without synthetic glues Wall size: prefabricated project (standard module 120 cm)

tavego® WALL: TECHNICAL DATA

PROPERTY TAVEGO® CROSS TAVEGO® STACK Type of wood Spruce and silver fir Spruce and silver fir From italian PEFC forests Layers 4 layers - total thickness 3 layers - total thickness Dried and selected stars from 120 mm stars from 120 mm according to quality Strength C 24 C 24 Accordig to UNI 11035-2003 Wood moisture 12% (+/- 2%) 12% (+/- 2%) Data refering to delivery supply Bulk density 480 kg/m3 480 kg/m3 Measures Prefabricated project Prefabricated project (standard module = 120cm) (standard module = 120cm) Fire reaction class D-s2 d0 class D-s2 d0 data from table EN 13501-1 Burning rate 0,8 mm/min 0,8 mm/min data from table EN 1995-1-2 3 3 CO2 Stored 848 Kg/m 848 Kg/m corresponding 1.760 Kg/t

“TAVEGO® STACK WALL PREDIMENSIONING: TAVEGO® CROSS WALL : LOAD CAPACITY load capacity [kN/m]” PARETE TAVEGOPanel® CROSS: size: RESISTENZA 300x100x10 AI CARICHI cm VERTICALI Pannello 300x100x10 cm “Height Thickness [mm] 200 180 [m]” 120 130 140 160 2,5 517 607 704 140 3,0 414 487 564 120 100 F [kN] 3,5 333 391 453 80

0 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 s [mm]

Connections are the essence of life tavego ® floor prefabricated floor with side-by-side joists

TAVEGO® STACK-D FLOOR

Profile: Classic, Blunt, Groove, Alternate Technology: Brettstapel Stratigraphy: single layer made of side-by-side KVH joists or C24 boards Thickness [mm]: from 100 to 240 Connections: beech wooden dowels Floor size: prefabricated project (standard module of 80 cm)

TAVEGO® STACK-S FLOOR

Profile: Classic, Blunt, Groove, Alternate Technology: Nail Laminated Timber (NLT) Stratigraphy: single layer made of side-by-side KVH joists or C24 boards Thickness [mm]: from 100 to 240 Connections: amagnetic steel screws - AISI300 series Floor size: prefabricated project (standard module of 80 cm) prefabricated floor with side-by-side joists

TAVEGO® STACK-B FLOOR

Profile: Classic, Blunt, Groove, Alternate Technology: Prestressed Laminated Timber (PLT) Stratigraphy: single layer made of side-by-side KVH joists or C24 boards Thickness [mm]: from 100 to 240 Connections: threaded steel rods Floor size: prefabricated project (standard module of 80 cm)

TAVEGO® FLOOR PROFILES

Classic blunt GROOVE alternate profile profile profile profile tavego® FLOOR: TECHNICAL DATA

PROPERTY TAVEGO® STACK Type of wood Spruce and silver fir PEFC certified Layers of joists/boards One single layer of variable thickness between 100 and 240 mm Strength class of boards C 24 According to UNI 11035-2003 Wood moisture 12% (+/- 2%) Data refering to delivery supply Bulk density 480 kg/m3 Measures Prefabricated project (standard module of 80 cm) Fire reaction classe D-s2 d0 data from table EN 13501-1 Burning rate 0,8 mm/min data from table EN 1995-1-2 3 CO2 stored 830 Kg/m corresponding to 1.730 Kg/t

TAVEGO® STACK FLOOR PREDIMENSIONING Calculating the maximum span length as a function of load and floor thickness (f=L/300)

2 Floor Load q [kN/m ] thickness [mm] 2,00 2,50 3,00 3,50 4,00 4,50 5,00 5,50 6,00 6,50 7,00 7,50

100 4,2 3,8 3,6 3,4 3,3 3,1 3,0 2,9 2,8 2,7 2,6 2,5 120 4,9 4,6 4,3 4,1 3,9 3,8 3,6 3,5 3,4 3,3 3,2 3,1 140 5,6 5,3 5,0 4,7 4,5 4,4 4,2 4,1 4,0 3,9 3,8 3,7 160 6,4 6,0 5,6 5,4 5,1 5,0 4,8 4,7 4,5 4,4 4,3 4,2 180 7,1 6,6 6,3 6,0 5,8 5,5 5,4 5,2 5,1 4,9 4,8 4,7 200 7,7 7,3 6,9 6,6 6,3 6,1 5,9 5,8 5,6 5,5 5,3 5,2 220 8,4 7,9 7,5 7,2 6,9 6,7 6,5 6,3 6,1 6,0 5,9 5,7 240 9,1 8,6 8,1 7,8 7,5 7,3 7,0 6,8 6,7 6,5 6,4 6,2 *1 kN = 100 kg ca.

Connections are the essence of life RESEARCH AND DEVELOPMENT

Laboratory tests carried out at the University of Bergamo. is a trademark

PREFABRICATED WOODEN BUILDINGS

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