roof
nounThe cover or upper part of a house or other building, consisting of rafters covered with boards, shingles or tiles, with a side or sides sloping from the ridge, for the purpose of carrying off the water that falls in rain or snow. In Asia, the roofs of houses are flat or horizontal. The same name, roof, is given to the sloping covers of huts, cabins and ricks; to the arches of ovens, furnaces.