When it comes time to choosing a roof, there are so many options available, you may not be sure which one will work best. One of the longer lasting options is a modified bitumen or bitumen roof. By learning more about this type of roof, you can determine if it is right for your needs.
What is a Bitumen Roof?
Bitumen is a type of asphalt that can be applied in both hot and cold temperatures. Substances are added to standard roofing asphalt and fiberglass or polyester is used to increase durability and strength. The systems can be installed using a common torch method, asphalts or cold adhesives. It is usually a two-ply system that is installed in rolls that overlap at the edges.
Advantages of Bitumen Roofs
Bitumen has a long track record of durability and is considered one of the longer lasting types of flat roofing material. Bitumen roofs will last 20 years or more. Seams are melted together to help prevent leaks unlike other types of membrane systems that have open seams or are covered with another material that may weaken as it ages. Bitumen has a high-tensile strength and is unlikely to rack. The roof is highly rated against wind, fire and hail. Many manufacturers offer a lengthy warranty as another testament to bitumen’s durability.
Disadvantages of Bitumen Roofs
Bitumen does have its disadvantages despite its durability. Bitumen is black which can absorb rather than reflect heat. If the material is not installed properly, this heat absorption could reduce your energy efficiency. Although bitumen is available in 1, 2 or 3- ply material. Although it is less expensive, the 1-ply material is not durable and can break down prematurely. The 2- and 3-ply materials are much more durable but significantly more expensive. In order to protect the roof from the sun, granules need to be included. Not all contractors include the cost of the granules in the estimates for the roof so this could be an added expense. If you live in an area prone to rain, snow or ice, bitumen is not recommended as it only works on flat roofs. Water gathering in puddles or heavy snow and ice could lead to damage to your roof. It is also critical to have bitumen installed properly as improper installation could result in a shorter life expectancy.
If you are considering a bitumen roof for your home or business, contact RGB Construction today. You can reach us by phone or fill out the easy form online to get schedule a no-obligation appointment.