CLT panels are widely used for the production of structural elements, as well as interior and exterior visual structures that can be used for almost any type of building. When applied indoors, CLT building materials require no additional coatings - it is tough as is and has an attractive finish that makes it a desirable and sustainable finishing material. Meanwhile, when it is used for the external facade, additional protection against the effects of weather must be applied. At the least, it should be coated with mineral paint every 5 years, however, the most efficient and also the most popular option is to cover it with protective cladding.
CLT building materials are more fire-resistant than untreated steel or other construction materials. In case of a fire, the outer layers of CLT structures burn first and turn to char, which prevents further damage to it by containing the fire for 30 to 120 minutes. CLT buildings can also be built to be completely airtight, which won't allow smoke to pass from one room to another in the case of a fire, providing increased fire safety.
Airtightness also plays an important role in the energy efficiency of a building, decreasing the level of its thermal conductivity. Therefore, CLT building materials can help achieve high thermal efficiency, allowing to save on future building maintenance costs. In fact, interior temperatures in buildings made using CLT have the potential to be controlled using nearly one-third of the energy required to heat or cool an average house.