CLT-plates: technology, advantages and economy

CLT-plates: technology, advantages and economy

The name of the technology translates from English as cross-glued wood. These plates are used in construction everywhere - both in private housing construction, and in public, as well as in business.

Logs are cut into boards along and planed. The resulting lamellas are glued together, laying perpendicular. Vertical boards set the load–bearing capacity, horizontal boards set the longitudinal rigidity, so the panel is characterized by structural rigidity, “does not walk". Depending on the requirements, there can be from three to seven glued array layers in one panel.

The technology ensures that the walls and joints are non-shrinkable and windproof - you can immediately make repairs and not worry about drafts or freezing of the walls. The extreme lamellae inside and outside can be made of valuable wood species so that the surface of the plate itself becomes a finish. If this option is not to your taste, you can cover the walls with drywall inside and use any other type of finish, and mount a hinged facade outside.

A modular house made of CLT-plates can be two-storey or even three-storey. In the ceilings, due to the rigidity of the panels, there will be no dynamic vibrations, or "trampoline effect". Sound insulation both between floors and between rooms will be high. For walls made of CLT and brick with a thickness of 100 mm, this indicator is almost the same - 40 and 42 dB, respectively.

Also, houses made of CLT panels are very warm due to a low thermal conductivity of 0.13 W/mK and a high specific heat capacity of 2.10 kJ/kg.


CLT translated from English — cross glued wood

What about the economics of construction? It turns out that a CLT house is comparable in price to a frame house or to a house made of glued beams with more advanced technology. It has a 10% larger usable area and does not require large-scale repairs, the panels can simply be painted.