Flat roofing is also known as low slope roofing and the two are often spoke of as one because they use the same type of materials. Flat roofs are popular for commercial buildings because of their long life with little maintenance required. The technology has advanced greatly in the past few years, replacing the old tar and gravel roofs. The three most popular types use the latest technology. All have a Class A fire rating and a Class 4 storm rating.
Low slopes are normally found on residences. A lot of existing low slope roofs have the original tar and gravel material in place. It is best to replace these rather than repair them as it can be a lengthy and expensive process to find the origin of the leak. The new technology also allows for improved insulation value. Existing roofs are usually 30 or more years old and are nearing the end of their lives. Many new infills have flat roofs which are designed to allow more usable space on the property.
Flat roofs will initially cost 2 to 3 times that of a shingle roof. Using the proper materials installed by an experienced professional will provide you with many years of reliable performance.
One myth is that flat roofs are prone to water damage. A leaking roofs results from poor installation or poor maintenance. The roof drainage system is important. The roof should be checked by a professional once a year to avoid unexpected problems.