Wood is a natural insulator and can help reduce energy needs when it is used in windows, doors and floors. A wood frame allows more space for insulation than a brick building, and wood itself also has naturally thermally insulating properties. Of course, a better insulated home requires less energy to heat and cool, which typically means less fossil fuel use.
Wood also has better insulating properties than steel. Wood's structure contains minute air pockets, which limit its ability to conduct heat and help to minimize the energy needed for heating and cooling our eco timber houses providing very energy efficient homes.