House Roof Design
Roofs. The design of the roof should give unity to the structure, and much depends upon the general treatment adopted. In the smaller type of house a roof covering the whole structure makes for simplicity and repose, while numerous gables and ridges produce a restless feeling which it is desirable to avoid.
Gables, when employed, should be of simple outline, with the tiles or slates of the roof projecting, and thus keeping the walls dry, for if gable walls are carried up above the roof surface lead flashings are required, which causes an additional expense.
Hipped roofs are those which are set back from the face of the wall, as in picture 208. The wall in this case is terminated by the eaves gutter. Gables and hipped roofs should not, as a rule, be employed together in the same design, as this would produce a confused result.
The best method of forming the eaves of a sloping roof is to let the slope overhang the wall two or three feet, as this gives a good shadow and properly protects the wall from falling rain.
Horizontal parapets are required as a protection for flat roofs or roofs of an unusual height above the ground which cannot be reached by a ladder. The parapet requires an expensive lead gutter, and forms a lodgment for snow and rain-water such as does not occur in the ordinary eaves gutter.
The most appropriate materials for covering sloping roofs are tiles, slates and stone slabs. More on materials in roofs.