Architecture Roofs

4. Roofs

Roof, by definition, is an assemblage to provide cover for homes, buildings, and commercial, industrial, and recreational beas.
Roofs are constructed in different forms and reachs with various materials. A properly knowing and constructed jacket protects the structure beneath it from exterior weather conditions, provides:
- structural support for superimposed loads,
-diaphragm strength to maintain the shape of the structure below,
-suppresses fire spread, and
-meets desired esthetic criteria
4.1. History

Man has forever and a day needed a roof for auspices. Early man intention roofs formed by constitution such as caves, tho nomadic peoples had to be more resourceful, creating shelters of a temporary nature each time they moved. It is likely that undecomposable tents formed with wildcat skins over branches were the early form of constructed roofs, with more permanent shelter being pit dwellings. These were simply a shallow minelaying covered with a simple roof of branches and skins. It is an easy grade from this type of dwelling to a simple wall on the edge of the pit to raise the headroom and then to use shaped branches to give a slight pitch, thus up(a) rain run-off and therefore the quality of the environment within the shelter.




The simple cruck frame comprised two curved pieces of timber standing on the ground at one end and meeting at the top. Across several of these crucks were tied horizontal members onto which, again, were fi xed skins or as time progressed simple thatch.
Moving away from early roof forms that provided both wall and roof in one unit, the side by side(p) development showed a true roof built on masonry or timber walls. The simplest form of roof was a conjugated roof, consisting of two lengths of timber bearing against each other at the top and resting on a wall plate at their feet. The timbers, called couples, were pegged together at the top with timber dowels and were similarly pegged or spiked to the wall plate. The term couple was used until the...If you take to get a full essay, order it on our website: Orderessay



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