As we know mother nature always comes with the best solutions, and in this case, too, it provides us with one of the most important resources regarding building materials, and that resource is wood.
Wood as a resource is not only important because it stores a great amount of CO2 but it is also a renewable resource, therefore it is the best solution when talking about eco-friendly houses or passive houses, not to mention it is the best answer to the new NZEB regulations.
Using wood rather than other construction materials reduces CO2 emissions in two ways, the first aspect is that wood captures and stores considerable volumes of CO2 and the second aspect is that by deciding on wood as a building resource, you avoid alternative materials that produce CO2, such as concrete, or other materials that have a great carbon dioxide footprint when being produced.
To have a clearer picture of the impact let us talk about numbers and compare the 2 most used materials in the building industry: wood and concrete. A simple study has shown that one square meter of wooden wall stores about 80 kg of CO2 and produces only 30kg in the manufacturing process, while producing one square meter of concrete wall emits 120 kg of CO2.
Summing this up, if wood has a negative balance of -50 kg of CO2 and concrete a positive one of 120 kg of CO2 the wood used in construction reduces the CO2 in the atmosphere with 170 kg of CO2/square meter.
In the US every minute new forests add up to 50000 cubic feet of wood growth and this means the newly grown wood captures around 800 million metric tons of CO2. Every year around 30 million tons of CO2 are accumulated in new wood products.
All this being said, it is up to us what we want to put out in the world and we should be responsible with every decision we make, especially considering the times we are living in, times when we realize how important health and nature are.
Let us do as much as we can to reduce our footprint!