Strong lightweight.
However, one of the most important considerations when using cross laminated timber is moisture protection. In this post, we will focus on how moisture protection and coatings can affect the physical behavior of cross laminated timber structures and how to ensure that these structures are durable.
Ventilation & coating.
There are two types of moisture effects that can affect cross laminated timber: internal and external moisture. The internal moisture comes from the use of the room, i.e. from cooking, showering, breathing, etc. This means that heating and ventilation behavior has a major influence on how much moisture penetrates the wood. If the moisture is not removed sufficiently, it can lead to mold growth and rot. It is therefore important to ensure adequate ventilation and, if necessary, to set up a dehumidification system.
External humidity is often more difficult to control as it depends on factors such as rain, snow, rising damp, etc. One way to keep external moisture at bay is through the use of air and vapor tight layers. These layers can be applied as membranes, coatings or films. Their purpose is to limit the transport of moisture through the cross laminated timber and thus minimize the risk of moisture damage.
Avoidance of damage.
Cross laminated timber is an excellent material for timber construction. Its physical building properties make it an attractive choice for many constructions. However, moisture protection is an important factor that must be considered to ensure that structures are durable. When designing cross laminated timber constructions, both internal and external moisture must be taken into account. The use of airtight and vapor-tight layers and materials as well as careful execution of the connections are crucial to avoid moisture damage. With the right planning and execution, cross laminated timber can have a long service life and produce durable constructions.
