why BSG log house?


When it comes to the ecology of building materials, wood and massive wood are in a league of their own. Wood is a renewable resource that traps carbon dioxide. The ecology of BSG houses is a combination of several factors, such as:

  • use of renewable wood raw materials  
  • action as a carbon sink
    Trees absorb and trap carbon dioxide from the air as they grow. On average, a cubic metre of wood traps about 900 kilograms of carbon dioxide. A medium-sized log house has about 40–50 cubic metres of wood and stores about 40 tonnes of carbon dioxide. At the same time, the new forest grows and traps more carbon dioxide, which slows down climate change.
  • low energy-consumption in manufactory
    The energy consumption on production side is very much lower compared with stone houses, steel or mineral wool-production.
  • minimisation of energy consumption
    The energy consumed when living in a BSG house is minimised thanks to low-energy structures, excellent air tightness and the thermal mass of logs (see below for more details). Using renewable energy helps further decrease environmental impacts.
  • long life span of the house
    There are many log buildings in Europe that lasts more than 200 or even 300 years, such as churches, mansions and private houses. 
    Breathing structures are moisture-safe, which is very important factor for durability. BSG log house’s wall structures are also breathing structures that lasts for several generations if the house is designed and built correctly using qualified materials.

Energy efficiency

  • U - value
    Low U-value of wall-structure can be reached by combining massive wood structure and all other components.
  • No thermal bridges
    Nearly free of thermal bridges because of homogeneity of building houses.
  • Energy levels
    Combining with an ecological and modern heating system BSG log house is a high quality natural low-energy-concept, by which you can every asked energy level today.
  • Airtight homes and energy efficiency
    In recent years, BSG engineers and architects put their efforts in studying the energy efficiency, air tightness and moisture safety of log houses. Therefore such studies allow us to create a log house that is the best house for living in terms of health and indoor climate.
  • Solar heat energy
    BSG log structures store solar heat energy. The massive wood stores solar energy especially in early spring and autumn, when the sun is low on the horizon, and slowly releases the heat during the night, saving energy costs. In summer, this works the other way round. When the sun is high in the sky, the eaves and porch canopies protect the walls from the heat.

Healthy indoor air

  • Peaceful atmosphere
    The effect of wood and forests on the human mind has been studied quite extensively all over the world. Basic research has demonstrated that wood has a positive psychological effect. Architecturally harmonious solutions, restful colours, comfortable surroundings and the use of wood as a building material cause aesthetical pleasure and calm, thus increasing well-being. Wood is perceived as an aesthetically pleasing, calming and nursing material.
  • Good indoor air
    In additional to being an ecologically sustainable and energy-efficient building material, massive wood is a good way to achieve high indoor air quality. The more massive wood is used in the house, the more optimised indoor air humidity remains for good health.
  • Balanced indoor air humidity
    Good indoor air and the natural ability of massive wood to balance indoor air humidity help decrease the risk of respiratory infections. Massive wood walls breathe naturally, letting water vapour move freely from the air to the wall structure and back. A relative humidity of 30 to 55% minimises the harmful aspects of indoor air, such as growth of mould spores and bacteria. These factors make a massive wood house an ideal environment for those who suffer from respiratory problems, allergies or asthma.