Features and advantages
Building with wood
Building with wood
Why should I build with wood, even though wood burns?
Wood has a kind of natural fire protection and components made of wood behave well in case of fire: a layer of charcoal forms on the components, which conducts heat poorly and protects the core of the cross-section. On average, a burn-off of 0.7 mm/min can be expected. In 30 minutes, the cross-section decreases by about 20 mm on all sides, in 60 minutes by 40 mm. The remaining cross-section carries the loads. All fire resistance classes can be achieved.
Is it true that wood as a building material rots and is not durable?
From a biological point of view, wood is a very resistant and durable building material. Dry structural timber is hardly attacked by wood-destroying fungi and insects when used properly in buildings. Therefore, it is by no means necessary – as was often assumed in the past – to treat the wood with chemical preservatives to protect it from damage by fungi and insects. The various measures of constructive wood preservation without chemical treatments and using primarily native woods are summarised in the recently revised standard DIN 68 800. We see the best examples of the durability of wood all over the world. Many of the oldest buildings on earth are made of wood and still stand today as they did many centuries ago.
Are forests cleared for the production of wooden components?
The DERIX-Group is PEFC-certified and only uses wood from sustainable forestry.
This means that for every tree used, a new one is planted. In this way, we actively counteract the emergence of deforested areas and ensure that we maintain the wood cycle and that the material continues to be available without restriction in the future. Sustainability and responsibility for future generations is also a major concern for us, and one that takes up a lot of space in our company.
Is it true that building with wood is expensive?
If one compares the initial investment costs of a timber building with those of conventional new buildings, they are in fact usually not significantly cheaper. However, if one considers the entire life cycle of the building in the economic assessment, including the effects on resources and the climate as well as on the health of the people living and working in the building, the priceless advantages become clear: building with wood enables short construction times and creates space gains through slim constructions. The natural building material is healthy, ecological, renewable, climate-friendly and can even be used in a circular manner, as it is recyclable and thus ensures a residual value for the building after its use. We are committed to taking back all our building components at the end of their useful life.
Am I allowed to build several storeys with wood at all? What restrictions are there?
Indeed, we have to deal with many different laws and building regulations worldwide (and also throughout Germany). In the meantime, however, these political framework conditions are largely harmonising in the possibilities of using wood in multi-storey buildings, including high-rise buildings. There is a recognisable political will to introduce a sustainable and climate-positive product as early as the shell construction stage. Feel free to contact us about the currently valid framework conditions in your federal state or country – our regionally and nationally active engineers and partners will be happy to advise you.
Advantages of wood
as a building material
Building with wood
means building sustainably
Healthier living and
working with wood
Statics & Co.
Best conditions for
statics, planning and building physics
|Thermal conductivity parallel to the adhesive joints||0.13 W/(mK)||0.13 W/(mK)|
|Thermal conductivity perpendicular to the adhesive joints||0.15 W/(mK)||0.13 W/(mK)|
|Water vapour diffusion resistance number||40||20–50|
|Raw density (spruce)||450 kg/m²||450 kg/m²|
|Burn rate||ß0= 0.70 mm/min||ß0= 0.65 mm/min
ßn= 0.70 mm/min
with wooden components
Building for eternity
The durability of wood as a building material is a great advantage, because it allows buildings to be constructed that last for many decades. Many of the oldest buildings on earth are made of wood, such as the Norwegian Stave Church or the Chinese pagodas. However, correct planning is essential here – especially with regard to permanent structural wood protection against weathering or water ingress. With correct planning and implementation, wood as a building material is resistant to chemically aggressive climates. Unlike concrete and steel, chlorides, salts, carbons and the like are less likely to damage wood. are less damaging to wood.
The high quality of wood as a building material is also reflected in its appearance. Through the use of different types of wood and various surface treatment options, wood can be used in very different visual ways. In this way, buildings with a unique appearance can be constructed with wood.
Economical for a lifetime –
and even longer
Solid wood construction vs.
timber frame construction
Many people are familiar with timber frame construction or timber post and beam construction from the past. We in the DERIX-Group deal exclusively with the solid wood construction method, which differs greatly from the other construction methods. Unlike timber frame construction or timber post construction, our glulam and X-LAM elements are solid and without cavities. The solid timber construction method has further decisive advantages:
- Simple, uncomplicated construction
- Even complex geometries can be easily implemented
- Advantages in fire protection
- Greater binding of CO2 due to more wood
- Visible wood surfaces possible
- Better indoor climate
- Variable surface design