A roof is part of your building envelope. It's the covering on the uppermost part of any building or shelter which gives protection from pets and weather, notably rain or snow, but also heat, sunlight and wind. The word denotes the framing or structure which facilitates that covering also.[1]The characteristics of the roof are centered upon the goal of the building which it protects, the available roof covering materials and the neighborhood traditions of development and wider concepts 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 protects against sun rays 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 hand branches at Neot Semadar, IsraelA roof structure may provide additional living space, for example a roof garden.The elements in the design of a roof top are:the materialthe constructionthe durabilityThe material of your roof may range between banana leaves, wheaten straw or seagrass to laminated goblet, copper (see: copper roof), aluminium sheeting and pre-cast concrete. In lots of elements of the global world ceramic tiles have been the predominant roofer material for years and years, if not millennia. Other roofer materials include asphalt, coal tar pitch, EPDM silicone, Hypalon, reboundable foam, PVC, slate, Teflon textile, TPO, and timber shakes and shingles.
The construction of an roof depends upon its method of support and how the underneath space is bridged and whether or not the roof is pitched. The pitch is the viewpoint at which the roof goes up from its most affordable to highest point. Most US home structures, except in very dry out locations, has roofs that are sloped, or pitched. Although modern structure elements such as drainpipes may remove the dependence on pitch, roofs are pitched for reasons of looks and custom. So the pitch is dependent after stylistic factors partly, and to do with practicalities partially.
Some types of roofer, for example thatch, need 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 comparatively low angle. In areas where there is little rainfall, an almost chiseled roof with a slight run-off provides sufficient protection against an occasional downpour. Drainpipes also take away the need for a sloping roof top.
A person that specializes in roof construction is called a roofer.The durability of the roof is a matter of concern because the roofing is often the least accessible part of an building for purposes of repair and renewal, while its devastation or damage can have serious effects.
Because the reason for a roof top is to safeguard people and their possessions from climatic elements, the insulating properties of a roof are a concern in its structure and the decision of roofing materials.Some roof covering materials, those of natural fibrous materials specifically, such as thatch, have excellent insulating properties. For those that do not, extra insulation is often installed under the external level. In developed countries, nearly all dwellings have a ceiling installed under the structural members of the roof. The goal of a ceiling is to insulate against heating and cold, noises, dirt and grime and often from the droppings and lice of parrots who frequently choose roofs as nesting places.
Cement tiles can be utilized as insulation. When installed giving a space between the tiles and the roof top surface, it can reduce warming caused by the sun.Types of insulation are experienced or plastic sheeting, sometimes with a reflective surface, installed straight below the tiles or other material; 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 progressively more popular, and occasionally are mandated by local codes. Cool roofs are defined as roofs with both high reflectivity and high thermal emittance.
Poorly insulated and ventilated roofing can suffer from problems including the formation of snow dams throughout the overhanging eaves in cold weather, causing normal water from melted snow on top elements of the rooftop to penetrate the roofing material. Ice dams take place when temperature escapes through the uppermost area of the roof, and the snow at those details melts, refreezing as it drips along the shingles, and collecting by means of ice at the lower points. This can result in structural damage from stress, like the devastation of drainage and gutter systems.
roofing design
November 2012 Kerala home design and floor plans
Roof plan digitised for scanned plan or satellite image.
roof trusses design 1538 x 1494 314 kb jpeg free house floor plans 500
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