What is the purpose of cross laminated timber?
Applications for CLT include floors, walls and roofing. The panels’ ability to resist high racking and compressive forces makes them especially cost-effective for multistory and long-span diaphragm applications. In structural systems, such as walls, floors, and roofs, CLT panels serve as load-bearing elements.
What wood is used for cross laminated timber?
Cross-laminated timber (CLT) (a sub-category of engineered wood) is a wood panel product made from gluing together layers of solid-sawn lumber, i.e., lumber cut from a single log.
What material is used in CLT?
The material consists of planks (or lamellas) of sawn, glued, and layered wood, where each layer is oriented perpendicular to the previous. By joining layers of wood at perpendicular angles, structural rigidity for the panel is obtained in both directions, similar to plywood but with thicker components.
Is CLT waterproof?
The design principles for CLT fall between timber frame and masonry (Figure 4). As the CLT panels quickly provide a dry, weatherproof environment free from temporary props, progress on internal finishes and services can start as soon as the panels are in place.
How is Cross Laminated Timber CLT made?
What is Cross-Laminated Timber? CLT (Cross-Laminated Timber) is when layers of timber cut from a single log are glued together symmetrically, with the grain of each outer layer alternated at 90-degree angles. The most common method is to use an odd number of layers that are glued together in the same orientation.
How is CLT wood made?
A CLT panel consists of several layers of kiln-dried lumber boards stacked in alternating directions, bonded with structural adhesives, and pressed to form a solid, straight, rectangular panel. CLT panels consist of an odd number of layers (usually, three to seven,) and may be sanded or prefinished before shipping.
Is Cross Laminated Timber good?
CLT is an engineered timber product with good structural properties and low environmental impact (where sustainably sourced timber is used). It can provide dry, fast onsite construction, with good potential for airtightness and a robust wall and floor structure suitable for most finishes internally and externally.
Can you use CLT exterior?
CLT panels are not a cladding material and are not designed to be exposed to the exterior environment. They are a moisture sensitive structural assembly and therefore must be protected from rain and other moisture sources through the use of properly designed wall and roof assemblies.