Newcastle Roofing Services For When Only The Best Will Do
The roof is the uppermost part of a building and its job is to to provide protection from the elements, like the sun, the wind, snow, heat and the rain. It also provides protection from animals. Roofs can be different from region to region, with roofs in arid, Arabian countries being mostly flat due to a lack of serious rainfall and snow, while other areas of the world feature steep roofs to encourage rain and snow roll off. In parts of the world like Africa, heavy thatched roofs are preferred, as a means of preventing excessive heat. When it comes to popularity, asphalt shingles are preferred in the Unites States, while in Australia, metal roofing is the most preferred.
The Need for Good Structure
The Roof is an important part of any building, and often represents a significant part of the total building costs. This makes it necessary to invest in good roofing, so as to minimize maintenance costs down the road. Such costs can arise either from the use of the wrong materials, or from a low quality of work performed by the roofing contractor. In any case, it is of utmost importance that you hire a good roofing company from the beginning, since a single issue with your roof can turn into a big and complicated problem, when unchecked. Also remember to always have a qualified roofer inspect your roofing and give you a professional opinion, any time you are planning any improvements to it.
There are many types of roofs, and they are named according to their shapes or general physical appearance. Most of the roofs can be built with a wide variety of materials, while certain roof types can only be constructed satisfactorily with certain materials only. Following is a listing of the most popular types of roofing.
Hip roofs have equal slopes on all the four sides, with equal lengths from the top. They will either come together at the top to form a ridge, or they will form a flat surface at the top, but they will not continue to a point like a pyramid. Hip roofs have the benefit of being quite stable because of the equal distribution of roofing space across all four sides of the building. This makes them perfect for both windy and snowy areas, since they can easily withstand the winds and also make the snow slide off. On the negative side, hip roofs are more complex to design and build than a gabled roof, as well as more expensive too.
The gabled roof, also known as peaked or triangular roofs basically have two opposite sloping sides. The other two sides without sloping roofs may either be open, in which case they will contain no material at all, or they could be closed, in which case they will be covered with roofing material, but in a non sloping fashion. Their benefits include being relatively cheap to build, and providing for more ventilation. They can also quickly dispel water and snow and can also be quite spacious, making them ideal for houses with vaulted ceilings and attics. On the negative side, they can be problematic in high wind areas, since they lack the stability of hip roofs.
Flat roofs are as suggested by their name, flat. This means that they have no high rising, sloping sides like other roofs, although they will usually have a slight slope, in order to help with water drainage. Flat roofs are more popular in commercial buildings, although they do hold many benefits for the residential building. For example, a flat roof can provide a large living space for either playing games or other types of entertainment, a roof garden, barbecues and space for your solar installation or air conditioning systems. On the negative side, flat roofs are easily susceptible to water leakage when not properly sealed.
A skillion roof is a single sloping roof from a higher wall down to the lower. It is sometimes referred to as a shed roof, and as such is used mainly in sheds, garages and other home additions. Skillion roofs have the advantage of being relatively simply and easy to construct, as well as being cheap. They are mostly metal roofing. On the negative side, they are not suitable for use in highly windy areas, especially as a roofing for the main house.
Gambrel & Mansard
The Gambrel and Mansard roofs are basically the same kind of roofing, except that the Gambrel has two sloping sides, while the Mansard has all its four sides sloping. Unlike the Hip and Gabled roofs with their single slopes anyway, the Gambrel and Mansard both have double slopes. The lower part of the roof usually has a high slope, while the upper part of the roof has a rather low slope. Their advantages include the provision of extra living space, while their cons include extra costs, and not being ideal for heavy snows or rainfall because of the low pitched, upper roof.
Curved roofs are modern roofs which are made from curved steel beams and can be covered with any material, including metal roofing. The curve can be at any degree and can either be used to cover just a section of the house, or the entire house itself. Curved roofs have the advantage of being aesthetically pleasing, as well as the ability to be customized to provide extra architectural functions. On the negative side, curved roofs can be quite expensive to design and build.
A sawtooth roof is a kind of roof that was originally popular in factory buildings. It is comprised of two or more pitched roofs which are parallel to each other, with their sloping and vertical sides alternating. The advantage of sawtooth roofs is that windows can placed on their vertical sides, while the sloping sides can contain solar panels, and this has made them to become increasingly popular in residential homes, especially among eco-friendly builders. The shape of the parallel slopes resembles that of a saw-blade, and hence the name. On the negative side, they can be quite expensive to design and build.
The Right Materials
The Shape of a roof is not the only important aspect, another important aspect of a good roof is the roofing material. When considering roofing materials, properties such as weight, colour, shape and of course, cost, will all weigh in to determine the best choice of roofing material for any home. Following are the most popular roofing materials.
Metal roofing is the most popular the most popular type of roofing in Australia. Metal as a roofing material is relatively light, durable, and much more resistant than most other roofing materials. They can be made from either aluminium, copper or stainless steel. Metal roofing is environmentally friendly and can be energy efficient. They can additionally be used in almost all types of roofing projects and are relatively affordable. Colorbond is a popular type of metal roofing that offers metal roofing sheets in up to 22 different colours, so that you can easily find a matching roof colour to your house’s colour. Metal roofing can last from 40 to 70 years.
Clay & Concrete Tiles
Clay and concrete tiles are two heavy roofing options. Because of their extra weight, additional framing will be needed. Clay tiles can look very beautiful on certain Mediterranean styled homes, and they are non-combustible. They can be scalloped, ribbed or flat, and will last for up to 50 years when maintained properly.
Asphalt is one of the cheapest materials to roof a house with. They are the most popular roofing choice in the United States, and appear in a variety of colours. Asphalt shingles will also fit into most architectural designs but they have the small disadvantage of lasting only for about 20 years.
Slate is another beautiful material for roofing. It is available in many colours, including red, green and many shades of black and grey. Slate is a very durable material but it is rather expensive and quite heavy, and therefore requires extra framing. Slate can last for well over 80 years, sometimes even reaching a 150 years or more.
Many homes have been built with wood shingles in the distant past, and they still continue to be preferred by some people till date. Wood shingles have a certain natural beauty to them, and some are even treated to be fire resistant. They are perfect for cottage styled houses, and will last for about 25 years.
Flat and Rolled Membranes
A flat roof can practically be built with any material, but they are susceptible to water leakages. that is why flat roofs have to be covered with special membranes that prevent moisture from penetrating into the house’s inner structures. Such membranes can be made from PVC (Polyvinyl-Chloride), EPDM, TPO, Modified Bitumen Sheets and BUR (Built Up), which is made from tar and gravel. You could also use a silicon spray in some cases. The durability of the roof will depend on the material used, PVC is the most durable, while BUR can withstand more foot traffic.
Some modern shingles also have photovoltaic cells integrated in them, which when connected to house, provides electric energy. The durability of solar shingles is still unknown, since they are relatively new. They are currently rather expensive, too.
A green roof is any roof that has been covered and properly sealed with to prevent moisture, and then packed with organic soil which houses living plants. They are usually not done with metal roofing styles, but rather with concrete or ceramic roofing. Green roofs can look quite beautiful when done well, but their cost and durability depend on the individual design, and its construction process.
How Long Does The Work Take?
Most projects will take anywhere from a few days up to a few weeks. The exact amount of time that the project will require, will depend on the type of job being done, the materials being used, and of course, the size of the house. Another important aspect is whether it’s a new job, or a re-roofing, in which case, more time would be needed to remove and dispose of the old roof.
What Credentials are Needed in Australia?
Different regions in Australia require the contracting companies to acquire various types of licenses.
- For New South Wales, different types of licenses can be obtained from Fair Trading, including for roof plumbing, tiling and slating.
- In Victoria, the Victorian Building Commission issues licenses for contractors who intend to carry out projects with a value of over $5,000.
- For Queensland, the licenses are issued by the Queensland Building and Construction Commission for projects over $3,000. The two classes of license include nominee supervisor and the trade contractor. The contractor must in addition hold a roof tiling and a roof and wall cladding licenses.
- In South Australia, the Consumer & Business Services provides building licenses and supervision licenses which are both required.
- In western Australia, the Building Commission issues licenses to contractors for projects above $20,000. The licence could either be a practitioner’s license which authorizes the supervision of building works, or a contractor’s licenses, which authorizes the contractor to sub-contract.
How The Installation Process Works
Here is a Step-by-Step Process for a standard roofing project, including the removal and disposal of the previous roof.
- On the day prior to installation, the materials and trash container will be brought to the site.
- The crew will review the job and have a meeting.
- The removal and the disposal of the old roof begins.
- The decking will also be inspected, and where necessary, will be replaced.
- The underlay is installed on top of the roof deck which has been prepared.
- The shingles will then be installed and properly fastened.
- Shingles in areas around valleys are cut to size.
- Any secret gutters are fitted and all remaining work like flashings are completed.
- Removal of trash container and departure of crew after clean-up.
- Final inspection by the supervisor and hand over.
Common Mistakes People Make
Amateur contractors and bad roofers can do poor quality jobs sometimes, leaving a roof in a terrible shape, which may cost much more money to repair sometime down the road. Some of these common mistakes include:
– Choosing materials with a different matching slope than that of the roof
– Improperly installed starter shingles
– Improper securing and sealing of valley flashings
– The use of too few nails per shingle
– Improper alignment of shingle
Periodic inspection of your roof is necessary in order to detect possible damages and have them repaired in time, before they can cause any further damages. It is also recommended to inspect the roof after a storm, or if you plan on selling or buying of a house. The roof should also be inspected if you plan on adding extensions to the house, or carrying out other major renovations. You can also carry out an inspection if you notice leakages in your attic, blistering and peeling of paint, ceiling stains, moss growth on the roof and broken or cracked shingles.