Ответьте на вопросы к тексту

1. Why is an external cavity wall construction used?

2. What do three main walls in the long direction do?

3. What is the unusual feature of the house?

4. Why is the window on the south-east side a large one?

5. What is the object of the structural design?

6. How is it best achieved?

7. Why isn’t instability of masonry an important factor in these buildings?