ZRUBY RAJEC offers their customers the option to build wooden houses also from glued laminated spruce timber.

Glulam beams are machine-made by laminating several layers of wood, with the portion featuring the highest density of growth rings being cut into sections. Depending on the use of the beam, three to six layers of wood are laminated together, with the thickest part of the beam reaching up to 245mm. External walls made of five to six layers of glued laminated timber have excellent thermal insulation properties. This is because glued laminated timber has a much better thermal conductivity coefficient (lambda) than raw wood of the same thickness. Each layer of glued laminated timber is pre-dried, minimizing the so-called settling of the construction, which would occur during the drying process of the round logs. This allows us to incorporate more daring architectural designs as well.

Quality construction relies on high-quality materials. The wood we use is sourced from high-altitude regions of the Malá and Veľká Fatra mountains, harvested from mature and non-damaged forests at an altitude of at least 600 meters above sea level. This dense wood exhibits a growth pattern where 5-7 annual rings are present per centimeter. It shares similar characteristics with resonance wood used for crafting musical instruments. Such wood has a lower thermal conductivity coefficient, also known as lambda value. Building with this type of wood significantly improves the thermal insulation properties of the structure.

We offer wooden houses made from high-quality spruce laminated beams. Spruce (Picea abies) is a slender coniferous tree reaching heights of 30 to 50 m, with a trunk diameter of 1 to 1.5 m. Spruce grows quickly and lives approximately 150 to 300 years. This white to light yellow wood, soft and lightweight, with a fine texture and simple grain, is known for its excellent mechanical properties and good moisture resistance. Spruce wood has higher density, strength, and a lower moisture diffusion coefficient, ensuring excellent durability and stability in timber structures. The laminated beams we use have very good thermal insulation properties and are made from 4 cm lamellas with thicknesses ranging from 160 to 320 mm.

For our wooden houses, we use top-quality spruce BSH beams, carefully selected based on density, structure, and appearance. The wood comes from sustainably managed forests, contributing to ecological stability. Before processing, the wood is carefully dried to an optimal moisture level (around 12 %), reducing the risk of deformation and cracking over time. The lamination process of individual layers (lamellas) is carried out under strict conditions using certified adhesives that are safe and moisture-resistant. Thanks to high-quality processing and treatment, BSH beams have a smooth surface and a pleasant color structure, enhancing the aesthetic value of each project. BSH beams used in our buildings are certified and meet strict standards for quality and consistency of material properties, ensuring that our constructions are safe and durable. Spruce is widely used not only in construction and furniture making but also in the manufacture of musical instruments due to its acoustic properties.

We currently only offer spruce glulam wood.