A roof covering is part of the building envelope. It is the covering on the uppermost part of a building or shelter which gives protection from pets or animals and weather, notably rain or snow, but also heat, wind and sunlight. The term also denotes the framing or structure which supports that covering.[1]The characteristics of the roof are dependent upon the goal of the building which it addresses, the available roofing materials and the neighborhood traditions of structure and wider principles of architectural design and practice and could also be governed by local or countrywide legislation. In most countries a roof protects against rain primarily. A verandah might be roofed with material that shields against sun light but admits the other elements. The roof of an garden conservatory protects plants from cold, wind, and rain, but admits light.
Shack manufactured from date palm branches at Neot Semadar, IsraelA rooftop might provide additional living space, for example a roof structure garden.The elements in the design of a roofing are:the materialthe constructionthe durabilityThe material of any roof may range from banana leaves, wheaten straw or seagrass to laminated a glass, copper (see: copper roofer), aluminium sheeting and pre-cast concrete. In many parts of the world ceramic tiles have been the predominant roofing materials for centuries, if not millennia. Other roofing materials include asphalt, coal tar pitch, EPDM plastic, Hypalon, polyurethane foam, PVC, slate, Teflon cloth, TPO, and timber shakes and shingles.
The construction of an roof is determined by its method of support and how the underneath space is bridged and whether or not the roof top is pitched. The pitch is the viewpoint at which the roof rises from its most affordable to highest point. Most US domestic structures, except in very dried out locations, has roofs that are sloped, or pitched. Although modern engineering elements such as drainpipes might take away the dependence on pitch, roofs are pitched for reasons of looks and traditions. So the pitch is dependent after stylistic factors partly, and partially regarding practicalities.
Some types of roof, for example thatch, need a steep pitch to become durable and waterproof. Other types of roofing, for example pantiles, are unstable on the steeply pitched roof but provide excellent weather protection at a relatively low angle. In locations where there is little rainwater, an almost smooth roof with hook run-off provides enough protection against an occasional downpour. Drainpipes remove the dependence on a sloping roof structure also.
A person that specializes in roof top construction is named a roofer.The durability of the roof covering is a subject of matter because the roof covering is often the least accessible part of a building for purposes of repair and renewal, while its devastation or harm can have serious results.
Because the purpose of a roof structure is to safeguard people and their property from climatic elements, the insulating properties of the roof structure are a consideration in its structure and the choice of roofing materials.Some roofing materials, those of natural fibrous material particularly, such as thatch, have excellent insulating properties. For all those that not, extra insulation is installed under the outer level often. In developed countries, the majority of dwellings have a ceiling installed under the structural members of the roof. The goal of a ceiling is to insulate against high temperature and cold, sound, mud and frequently from the droppings and lice of birds who frequently choose roofs as nesting places.
Concrete tiles can be used as insulation. When installed leaving a space between your tiles and the roof covering surface, it can reduce heat caused by sunlight.Forms of insulation are sensed or cheap sheeting, with a reflective surface sometimes, installed below the tiles or other material directly; synthetic foam batting laid above the ceiling and recycled paper products and other such materials that can be inserted or sprayed into roof cavities. So called Cool roofs are becoming ever more popular, and in some full cases are mandated by local codes. Cool roofs are defined as roofs with both high reflectivity and high thermal emittance.
Poorly protected and ventilated roofing can suffer from problems including the formation of ice dams surrounding the overhanging eaves in cold weather, causing normal water from melted snow on top elements of the rooftop to permeate the roofing material. Ice dams happen when temperature escapes through the uppermost area of the roof, and the snow at those true points melts, refreezing as it drips along the shingles, and collecting in the form of ice at the lower points. This can lead to structural harm from stress, like the devastation of gutter and drainage systems.
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Shed Flat Roof Designs. Secondsun.co
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Shed Flat Roof Designs. Secondsun.co
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