Study the information below and then try to give a reasoned explanation to the fact that wood is a favourite building material of Hubert Fritz and his followers.

Simply put, manufacturing wood is energy efficient. Compare the amount of energy it takes to produce one ton of cement, glass, steel, or aluminum to one ton of wood:

· 5 times more energy for one ton of cement

· 14 times more energy for one ton of glass

· 24 times more energy for one ton of steel

· 126 times more energy for one ton of aluminum

Wood products make up 47% of all industrial raw materials manufactured in the United States, yet consume only 4% of the total energy needed to manufacture all industrial raw materials. Wood's manufacturing process alone makes it the environmentally friendly choice in building materials.