One Sided Parapet Roof

Where extending above a roof a parapet may simply be the portion of an exterior wall that continues above the edge.

One sided parapet roof.

Some of these roofs have parapets perhaps on just one side of the roof or perhaps on three or four while others have no parapets at all. Usages vary slightly from region to region or from one builder or architect to another. The addition of a parapet makes a flat roof far safer providing a small barrier that provides additional security to reduce the likelihood of anyone standing the roof falling over the edge. Some flat roofs make use of parapet walls with holes in the side to avoid flooding or standing water.

This also helps prevent staining on the exterior wall. A parapet is a barrier that is an extension of the wall at the edge of a roof terrace balcony walkway or other structure the word comes ultimately from the italian parapetto parare to cover defend and petto breast. This type of roof is common in urban areas for example on triple deckers in boston and row houses in philadelphia as well as in the southwest. A parapet roof is a flat roof with the walls of the building extending upwards past the roof by a few feet around the edges.

The german equivalent brüstung has the same meaning. Flat roofs are the obvious exception where most surface materials are not suitable to its style. The main factors which influence the shape of roofs are the climate and the materials available for roof structure and the outer covering. Roof terminology is also not rigidly defined.

The figure above shows the individual components to be considered in a parapet condition it starts with managing the flow of water on the parapet coping cap which is sloped back to the roof system. Roof shapes differ greatly from region to region. Home ranges from 6 000 to 15 000.