Go to this site  has two main purposes. The foremost is to provide shelter from environmental elements like the sun. Secondly, a roof also provides insulation from hot and cold weather.Roofs generally last for many years. However, there may come a time when it becomes necessary to correct and replace roof shingles on your home due to damage from harsh weather conditions, earthquakes, falling tree limbs or leaks. Poor maintenance may also speed up deterioration.Sometimes roofs are replaced only to improve appearance or raise the property's value.How can you tell if your roof needs replacing? If you're worried about the condition of your roof, the ultimate way to troubleshoot any potential problems is to request an inspection from the roof replacement expert. A professional roofing company can look for missing shingles, loose roofing material, sags, signs of water damage and mold and places where light is shining through the roof.If the damage is severe as well as your roof can't be repaired, it will need to be replaced.When replacing a roof, there are now dozens of roofing materials to choose from, both natural and commercially made. A new energy efficient roof can also save you a substantial amount of money over the years.Shingle is really a general term for many different types of roofing materials that overlap one another when installed on the roof, including asphalt, slate, tile and wood.Asphalt shingles are less costly that slate or tile, and typically the most popular kind of shingle. For a professional, roof shingle installation is fairly easy and the shingles themselves are believed quite resilient.The shingles are often made of both fiberglass and asphalt, and covered with grit. The life span expectancy of asphalt shingles often varies based on their construction, although most asphalt shingles will have a 20 or 30 year guarantee.When reroofing a residence with asphalt, you can either remove the old shingles or place the brand new shingles on top of the existing layer. A very important factor you need to be careful of when doubling through to roof shingles may be the upsurge in weight. If your roof becomes overweight, it could damage the frame. It's also advisable to understand that any roof irregularities will undoubtedly be repeated if new tiles are simply placed on the surface of the old ones.If you need the old shingles removed, consider hiring a specialist roofing company to accomplish the job. A roofing expert will know how to quickly remove the existing shingles.Slate is an extremely durable roofing material, with a life expectancy that exceeds 400 years. Ceramic tile can also have an extended life - sometimes up to a century. Wood shingles, usually made of cedar, can last around 30 years.Reroofing a house may also be done with asphalt rolls, thermoplastics, polyester, fabric and metal.In some instances, the structure of your house will narrow your set of choices. Foundation repair specialists who are experienced at roofing may help you avoid common reroofing mistakes that could find yourself costing you many thousands of dollars.Having your roof inspected on a regular basis will increase its longevity, particularly when any issues are quickly addressed.