A roof structure is part of an building envelope. It is the covering on the uppermost part of your building or shelter which provides protection from animals and weather, rain or snow notably, but also heat, wind and sunlight. The term denotes the framing or framework which facilitates that covering also.[1]The characteristics of any roof are dependent upon the goal of the building that this covers, the available roofing materials and the local traditions of engineering and wider concepts of architectural design and practice and may also be governed by local or national legislation. In most countries a roof protects against rain primarily. A verandah might be roofed with materials that protects against sunshine but admits the other elements. The roof of the garden conservatory protects plants from cold, wind, and rain, but admits light.
Shack made of date palm branches at Neot Semadar, IsraelA rooftop may provide additional liveable space, for example a roof structure garden.The elements in the look of a roof structure are:the materialthe constructionthe durabilityThe material of any roof may range between banana leaves, wheaten straw or seagrass to laminated wine glass, copper (see: copper roof covering), aluminium sheeting and pre-cast concrete. In many elements of the global world ceramic tiles have been the predominant roof covering material for years and years, if not millennia. Other roofing materials include asphalt, coal tar pitch, EPDM silicone, Hypalon, reboundable foam, PVC, slate, Teflon cloth, TPO, and wood shingles and shakes.
The construction of any roof depends upon its approach to support and the way the underneath space is bridged and whether or not the roof is pitched. The pitch is the viewpoint of which the roof goes up from its least expensive to highest point. Most US home structures, except in very dried up locations, has roofs that are sloped, or pitched. Although modern construction elements such as drainpipes may remove the need for pitch, roofs are pitched for reasons of tradition and aesthetics. So the pitch is partly dependent after stylistic factors, also to do with practicalities partly.
Some types of roofer, for example thatch, require a steep pitch to become durable and waterproof. Other styles 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 a slight run-off provides satisfactory protection against an intermittent downpour. Drainpipes also take away the dependence on a sloping rooftop.
A person that specializes in roof covering construction is called a roofer.The durability of an roof covering is a matter of matter because the roofing is usually the least accessible part of any building for purposes of repair and renewal, while its devastation or harm can have serious results.
Because the purpose of a roof top is to protect people and their belongings from climatic elements, the insulating properties of the roofing are a factor in its framework and the choice of roofing material.Some roofer materials, especially those of natural fibrous material, such as thatch, have excellent insulating properties. For those that not, extra insulation is installed under the outside coating 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, noises, dirt and grime and often from the lice and droppings of wild birds who frequently choose roofs as nesting places.
Cement tiles can be utilized as insulation. When installed going out of a space between the tiles and the roof surface, it can reduce heating up caused by sunlight.Forms of insulation are experienced or plastic sheeting, sometimes with a reflective surface, installed directly below the tiles or other materials; 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 popular ever more, 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 roof covering can have problems with problems like the formation of snow dams round the overhanging eaves in winter, causing normal water from melted snow on top elements of the roof to permeate the roofing materials. Ice dams occur when heating escapes through the uppermost part of the roof, and the snow at those details melts, refreezing as it drips across the shingles, and collecting in the form of ice at the lower points. This may bring about structural destruction from stress, like the destruction of drainage and gutter systems.
hipped roof is any that has sloping roof surfaces instead of upright
Basic roof design
ScandinavianapartmentStockholm201roofdesign : OLPOS Design
Metal Roof Houses curved steel roof home by Dutch architects
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