11.   The roof is sagging in the middle.

12.   On some, the roofs were so flimsy they could pull them off with rakes alone.

13.   Shortly after two, when all the roofs were off, they stopped for a bite and a drink.

14.   Roofs were usually of timber.

15.   In Mediterranean areas the openings are small to exclude the sun and roofs are flatter as a steep pitch is superfluous.

16.   Vaulting is unusual, most roofs are timber spanned, windows are not large, walls unbuttressed and roof pitches shallow.

17.   The lower part of the walls is marble faced and the open roof is of painted and gilded wood.

18.   The roof should be on the main building by the end of March and installation of the main process equipment will begin immediately after Easter.

19.   Is a house being erected only a building when its roof is on?

20.   A vicar has had to cancel twenty weddings because his church roof is in danger of collapse.