Wood is a natural insulator and is very effective in isolating cold and heat. This means a saving a significant amount of energy when compared to stone, concrete and brick houses. As well as being a good thermal insulator, wood is also an excellent noise absorber, making wooden houses warm, relaxing and peaceful. Because of the way these types of buildings are constructed and the careful planning of their construction, they are quick to build when compared to buildings made from materials such as stone or concrete. This fast build represents a significant monetary saving.