Liimapuutuotteet

Liimapuutuotteet, also known as glulam or glued laminated timber, are engineered wood products made by bonding together individual pieces of lumber. These pieces are typically selected for their strength and then glued under pressure to form larger, structural elements. This process allows for the creation of beams, columns, and arches that are stronger and more dimensionally stable than solid sawn timber of equivalent size.

The manufacturing process involves carefully sorting and grading the lumber for defects. Once selected, the wood is dried to a specific moisture content, and then adhesive is applied to the mating surfaces of the individual lamellas. These lamellas are then stacked and clamped together under high pressure until the adhesive cures. The resulting glulam can be manufactured in a wide range of sizes and shapes, including straight beams and curved members, making it a versatile material for construction.

Liimapuutuotteet offer several advantages. They have a high strength-to-weight ratio, meaning they are strong yet relatively lightweight compared to steel or concrete. They are also resistant to fire, as the charring process on the surface can protect the core of the timber. Furthermore, glulam is an environmentally friendly building material, as it is derived from a renewable resource and has a lower embodied energy than many other construction materials. Its aesthetic appeal also makes it a popular choice for visible structural elements in buildings.