A roof is part of your building envelope. It is the covering on the uppermost part of an building or shelter which gives protection from pets or animals and weather, notably rain or snow, but also heat, sunlight and wind. The word denotes the framing or framework which helps that covering also.[1]The characteristics of an roof are centered upon the purpose of the building it addresses, the available roof covering materials and the local traditions of building and wider principles of architectural design and practice and could also be governed by local or nationwide legislation. In most countries a roof protects mostly against rain. A verandah may be roofed with material that protects against sunlight but admits the other elements. The roof of any garden conservatory protects plants from cold, wind, and rain, but admits light.
Shack manufactured from date palm branches at Neot Semadar, IsraelA roof structure may provide additional liveable space, for example a rooftop garden.The elements in the design of a roof top are:the materialthe constructionthe durabilityThe material of a roof may range from banana leaves, wheaten seagrass or straw to laminated goblet, copper (see: copper roofing), aluminium sheeting and pre-cast cement. In many elements of the global world ceramic tiles have been the predominant roof materials for years and years, if not millennia. Other roofer materials include asphalt, coal tar pitch, EPDM silicone, Hypalon, polyurethane foam, PVC, slate, Teflon fabric, TPO, and solid wood shingles and shakes.
The construction of your roof depends upon its approach to support and the way the underneath space is bridged and set up roof structure is pitched. The pitch is the perspective of which the roof rises from its lowest to highest point. Most US home architecture, except in very dry parts, has roofs that are sloped, or pitched. Although modern engineering elements such as drainpipes may remove the need for pitch, roofs are pitched for reasons of traditions and appearance. So the pitch is partly dependent upon stylistic factors, and to do with practicalities partly.
Some types of roofer, for example thatch, need a steep pitch in order to be durable and waterproof. Other types of roofing, for example pantiles, are unstable on the steeply pitched roof but provide excellent weather protection at a comparatively low angle. In areas where there is little rainwater, an almost chiseled roof with a slight run-off provides satisfactory protection against an intermittent downpour. Drainpipes take away the need for a sloping roof also.
A person that specializes in roof construction is called a roofer.The durability of a roof structure is a matter of concern because the roof top is usually the least accessible part of any building for purposes of repair and renewal, while its damage or harm can have serious effects.
Because the purpose of a rooftop is to protect people and their belongings from climatic elements, the insulating properties of any roof covering are a consideration in its structure and the choice of roofing material.Some roof covering materials, particularly those of natural fibrous material, such as thatch, have excellent insulating properties. For all those that do not, extra insulation is often installed under the outside layer. In developed countries, nearly all dwellings have a ceiling installed under the structural members of the roof. The goal of a roof is to insulate against high temperature and cold, sound, mud and frequently from the droppings and lice of parrots who frequently choose roofs as nesting places.
Concrete tiles can be used as insulation. When installed departing a space between your tiles and the roof surface, it can reduce heating system caused by the sun.Forms of insulation are sensed or clear plastic 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 may be inserted or sprayed into roof cavities. So called Cool roofs have become significantly 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 covered and ventilated roofer can have problems with problems like the formation of ice dams about the overhanging eaves in cold weather, causing normal water from melted snow on top parts of the roof to permeate the roofing material. Ice dams arise when heating escapes through the uppermost part of the roof, and the snow at those true things melts, refreezing as it drips along the shingles, and collecting by means of ice at the low points. This can result in structural harm from stress, like the destruction of drainage and gutter systems.
Architectural Roof Design – Infolink – Australia39;s Architecture
Metal Roof: Metal Roof Framing
metal roof
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