A roof is part of a building envelope. It is the covering on the uppermost part of an building or shelter which provides protection from animals and weather, rain or snow notably, but heat also, wind and sunlight. The term also denotes the framing or structure which supports that covering.[1]The characteristics of the roof are dependent upon the goal of the building it covers, the available roofer materials and the local traditions of structure and wider ideas 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 might be roofed with materials that defends against sunlight but admits the other elements. The roof of your garden conservatory protects plants from cold, wind, and rain, but admits light.
Shack made of date palm branches at Neot Semadar, IsraelA roofing could also provide additional liveable space, for example a rooftop garden.The elements in the design of a roof structure are:the materialthe constructionthe durabilityThe material of any roof may range between banana leaves, wheaten seagrass or straw to laminated cup, copper (see: copper roof covering), aluminium sheeting and pre-cast concrete. In lots of parts of the world ceramic tiles have been the predominant roof material for centuries, if not millennia. Other roof covering materials include asphalt, coal tar pitch, EPDM plastic, Hypalon, reboundable foam, PVC, slate, Teflon fabric, TPO, and wood shakes and shingles.
The construction of your roof is determined by its approach to support and the way the underneath space is bridged and whether or not the roof is pitched. The pitch is the angle at which the roof rises from its least expensive to highest point. Most US local structures, except in very dry locations, has roofs that are sloped, or pitched. Although modern construction elements such as drainpipes might take away the dependence on pitch, roofs are pitched for reasons of looks and traditions. So the pitch is dependent upon stylistic factors partly, and partially to do with practicalities.
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 regions where there is little rain, an almost chiseled roof with a slight run-off provides enough protection against an occasional downpour. Drainpipes remove the dependence on a sloping roof also.
Somebody who specializes in roof construction is called a roofer.The durability of a roof is a matter of concern because the roof is often the least accessible part of an building for purposes of repair and renewal, while its damage or devastation can have serious results.
Because the purpose of a roofing is to protect people and their possessions from climatic elements, the insulating properties of a roof covering are a factor in its structure and the decision of roofing materials.Some roof materials, specifically those of natural fibrous material, such as thatch, have excellent insulating properties. For those that not, extra insulation is often installed under the outer part. In developed countries, nearly all dwellings have a ceiling installed under the structural members of the roof. The purpose of a roof is to insulate against high temperature and cold, noises, mud and frequently from the lice and droppings 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 heating up caused by the sun.Types of insulation are noticed or clear plastic sheeting, with a reflective surface sometimes, installed below the tiles or other materials straight; 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 more and more 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 protected and ventilated roofing can suffer from problems such as the formation of ice dams across the overhanging eaves in cold weather, causing normal water from melted snow on top elements of the roofing to permeate the roofing material. Ice dams take place when high temperature escapes through the uppermost area of the roof, and the snow at those true details melts, refreezing as it drips over the shingles, and collecting by means of ice at the lower points. This may bring about structural damage from stress, like the damage of gutter and drainage systems.
Roof Layout
How To Frame Hip Roofs 11
My roof withstood 110 km/h wind year later without any damages. Not a
My roof withstood 110 km/h wind year later without any damages. Not a
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