A roofing is part of your building envelope. It is the covering on the uppermost part of a building or shelter which gives protection from family pets and weather, notably rain or snow, but heat also, sunlight and wind. The word also denotes the framing or structure which supports that covering.[1]The characteristics of the roof are dependent upon the purpose of the building that this covers, the available roofing materials and the local traditions of building and wider principles of architectural design and practice and may also be governed by local or nationwide legislation. In most countries a roof protects primarily against rain. A verandah may be roofed with material that protects against sunlight but admits the other elements. The roof of a garden conservatory protects plants from cold, wind, and rain, but admits light.
Shack made of date palm branches at Neot Semadar, IsraelA rooftop may also provide additional liveable space, for example a roof structure garden.The elements in the design of a roofing are:the materialthe constructionthe durabilityThe material of an roof may range from banana leaves, wheaten straw or seagrass to laminated wine glass, copper (see: copper roof), aluminium sheeting and pre-cast concrete. In many parts of the planet ceramic tiles have been the predominant roofing materials for centuries, if not millennia. Other roof materials include asphalt, coal tar pitch, EPDM rubber, Hypalon, polyurethane foam, PVC, slate, Teflon cloth, TPO, and solid wood shakes and shingles.
The construction of a roof is determined by its method of support and how the underneath space is bridged and set up roof covering is pitched. The pitch is the angle of which the roof goes up from its lowest to highest point. Most US domestic structures, except in very dry regions, has roofs that are sloped, or pitched. Although modern structure elements such as drainpipes might take away the dependence on pitch, roofs are pitched for reasons of traditions and looks. So the pitch is dependent after stylistic factors partly, and partially regarding practicalities.
Some types of roofer, for example thatch, require a steep pitch in order to be durable and waterproof. Other styles of roofing, for example pantiles, are unstable on a steeply pitched roof but provide excellent weather protection at a relatively low angle. In areas where there is little rainfall, an almost toned roof with a slight run-off provides adequate protection against an intermittent downpour. Drainpipes remove the need for a sloping roofing also.
Somebody who specializes in roof construction is called a roofer.The durability of an rooftop is a matter of concern because the rooftop is usually the least accessible part of an building for purposes of repair and renewal, while its destruction or damage can have serious results.
Because the purpose of a roofing is to safeguard people and their property from climatic elements, the insulating properties of the roof top are a concern in its framework and the choice of roofing materials.Some roof materials, specifically those of natural fibrous materials, such as thatch, have excellent insulating properties. For all those that do not, extra insulation is often installed under the exterior covering. 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 temperature and cold, noises, dirt and frequently from the lice and droppings of birds who frequently choose roofs as nesting places.
Concrete tiles can be utilized as insulation. When installed leaving a space between your tiles and the roof top surface, it can reduce heating up caused by the sun.Forms of insulation are thought or plastic sheeting, sometimes with a reflective surface, 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 have become ever more popular, and occasionally are mandated by local codes. Cool roofs are defined as roofs with both high reflectivity and high thermal emittance.
Poorly covered and ventilated roof covering can have problems with problems such as the formation of ice dams round the overhanging eaves in winter, causing water from melted snow on higher elements of the roof structure to permeate the roofing materials. Ice dams occur when temperature escapes through the uppermost area of the roof, and the snow at those true tips melts, refreezing as it drips across the shingles, and collecting by means of ice at the low points. This can bring about structural destruction from stress, like the devastation of drainage and gutter systems.
simple roof question for a shed?shedroofrafterseightpitch.png
simple roof question for a shed?shedroofrafterseightpitch.png
Shed Roof Pitch http://www.garagejournal.com/forum/showthread.php?t
USG Design Studio 09 21 16.103.294 Gypsum Roof Steep Pitch Roof at
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