Wood
The primary wood used for the construction of log buildings is softwood. Traditionally, log structures were built using pine (Pinus sylvestris), spruce (Picea abies), cedar (Cedrus), or Swiss stone pine (Pinus cembra). More rarely, larch (Larix) was used. Saunas, however, were most often built from hardwood species such as linden (Tilia) or aspen (Populus tremula).
Styles and Structures
The primary wood used for the construction of log buildings is softwood. Traditionally, log structures were built using pine (Pinus sylvestris), spruce (Picea abies), cedar (Cedrus), or Swiss stone pine (Pinus cembra). More rarely, larch (Larix) was used. Saunas, however, were most often built from hardwood species such as linden (Tilia) or aspen (Populus tremula).
Pests
Log houses, saunas, and other log structures are commonly associated with warmth, coziness, and a unique microclimate. However, there are also negative factors to consider—wood-boring insects. These insects attack the wood from the inside and can damage the structural integrity of buildings. In Lithuania, the most commonly encountered species include woodworms, longhorn beetles, deathwatch beetles, and others. These insects lay their eggs in cracks, joints, and small fissures in the wood.
Fungi and Mould
Log houses, saunas, and other log structures—as well as wooden construction in general—can be significantly affected by bacteria and fungi. These microorganisms promote processes such as decay and mould growth, which impact not only the aesthetic appearance of the building but, more importantly, human health. The primary condition for preventing the spread of bacteria and fungi is proper ventilation of the wood.
Blue Stain
Wood blue staining is most commonly caused by fungi belonging to the Ophiostoma genus (class Ascomycetes), as well as representatives of other fungal groups such as Aureobasidium pullulans (de Bary) G. Arnaud, Phialophora asteris (Dowson) Burge & I. Isaac, Cladosporium herbarum (Pers.) Link, Discula pinicola (Naumov) Petr., Alternaria humicola Oudem., and others. Blue stain can occur in both softwood and hardwood species.
10 Reasons
Prevents wood from rotting. Wood, as a material of biological origin, serves a wide range of purposes: fuel, construction material, industrial raw material, and even a nutrient source for certain microorganisms. Therefore, the requirements for wood vary depending on its use—one set of requirements applies to wood used in furniture manufacturing, another in the paper industry, and yet another in construction.