A roof structure is part of any building envelope. It is the covering on the uppermost part of an building or shelter which provides protection from family pets 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 your roof are centered upon the goal of the building that this protects, the available roofer materials and the neighborhood traditions of development and wider ideas of architectural design and practice and could also be governed by local or nationwide legislation. In most countries a roof protects against rain primarily. 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 made of date hand branches at Neot Semadar, IsraelA roof could also provide additional liveable space, for example a rooftop garden.The elements in the design of a rooftop are:the materialthe constructionthe durabilityThe material of the roof may range between banana leaves, wheaten straw or seagrass to laminated goblet, copper (see: copper roofing), aluminium sheeting and pre-cast concrete. In many parts of the earth ceramic tiles have been the predominant roof materials for centuries, if not millennia. Other roofer materials include asphalt, coal tar pitch, EPDM rubber, Hypalon, reboundable foam, PVC, slate, Teflon fabric, TPO, and lumber shakes and shingles.
The construction of any roof depends upon its method of support and how the underneath space is bridged and set up roof is pitched. The pitch is the viewpoint of which the roof increases from its minimum to highest point. Most US domestic structures, except in very dried out regions, has roofs that are sloped, or pitched. Although modern building elements such as drainpipes may take away the need for pitch, roofs are pitched for reasons of aesthetics and traditions. So the pitch is partly dependent upon stylistic factors, and to do with practicalities partially.
Some types of roof, for example thatch, require a steep pitch to become 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 parts where there is little rainfall, an almost even roof with hook run-off provides satisfactory protection against an occasional downpour. Drainpipes remove the dependence on a sloping roof covering also.
A person that specializes in roof top construction is called a roofer.The durability of your roof covering is a subject of matter because the roof structure is usually the least accessible part of an building for purposes of repair and renewal, while its destruction or destruction can have serious effects.
Because the reason for a roof covering is to safeguard people and their possessions from climatic elements, the insulating properties of any rooftop are a thought in its framework and the choice of roofing material.Some roof materials, specifically those of natural fibrous material, such as thatch, have excellent insulating properties. For all those that not, extra insulation is installed under the outer part often. In developed countries, the majority of dwellings have a ceiling installed under the structural members of the roof. The goal of a roof is to insulate against warmth and cold, noise, dirt and frequently from the lice and droppings of birds who frequently choose roofs as nesting places.
Concrete tiles can be used as insulation. When installed going out of a space between your tiles and the rooftop surface, it can reduce heating up caused by the sun.Forms of insulation are plastic or believed sheeting, with a reflective surface sometimes, installed below the tiles or other materials 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 are becoming significantly 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 roofing can have problems with problems such as the formation of snow dams across the overhanging eaves in winter, causing drinking water from melted snow on higher parts of the roof to permeate the roofing materials. Ice dams appear when warmth escapes through the uppermost part of the roof, and the snow at those true details melts, refreezing as it drips across the shingles, and collecting by means of ice at the low points. This can cause structural destruction from stress, including the devastation of gutter and drainage systems.
Metal Roof Design Plans http://www.docstoc.com/docs/4357994/patioroof
Southern Living Custom Builder : White Plains
Business: Affordable Steel Roof Truss Design, Roof Truss CAD Drawing
Roof plan digitised for scanned plan or satellite image.
Thanks a lot for reading and visit our blog, do not forget to share this post.
