BUR (Tar and Gravel) Roof Repair
Built-Up Roofing is a popular flat roof type because of its service life when properly maintained. On a life cycle cost basis, there are few commercial roofing systems that have outperformed coal tar. It is multi-layered so it has greater puncture resistance and provides more protection against leaks.
For some roofing contractors a disadvantage of repairing a “tar and gravel” roof is that they may have difficulties locating the leak and will just recommend replacing the entire roof instead.
We would use our advanced infrared scanning technology to locate the exact location of the leak. No guessing and no need to replace the entire roof when you just have a problem spot. Infrared roof scanning technology allows us to visually track the path of your roofs moisture from its origin to its manifest. The technology uses digital images as well as infrared imaging providing the exact location.
If you have been having repeated issues with your BUR and have had unsuccessful attempts at repair, do not hesitate to call us. Improperly repairing a Built-Up Roof can result in worse damage to your roof and can potentially create problems elsewhere. “Tar and Gravel” roof have been an industry standard for many decades so Roof Maintenance.ca contractors regularly repair and maintain Built-Up Roofing systems across the GTA. Our experienced roof technicians use only modern equipment to provide reliable, warrantied services.
Call us for more information on commercial roof repairs or for a quote on repairing your Built-Up Roof.
What is BUR?
Built-Up Roofing (BUR – “tar and gravel” – coal tar - asphalt and gravel) is the most classic “tar and gravel” system of roofing. Traditionally flat roofs have been installed by setting three - four layers of coal tar with coal tar saturated felts (tar-paper). Typically, the surfacing is gravel set in a flood-coat of hot asphalt. Coal tar is a by-product of the coal manufacturing process and makes an excellent water and oil resistant material. An unusual feature of a coal tar roof is its’ ability to soften in warm temperatures and "heal" itself. The warmer the temperature the faster and easier the membrane adjusts to changing conditions sealing minor ruptures and abrasions helping to keep it young.
BUR can be expensive on new constructions because of the increased cost of oil causing asphalt built up roofs have be one of the more expensive roofing systems to install. However, tar and gravel flat roofing systems have a long service period if it is well maintained and repaired.
It is always important to consider your location in the world when choosing a roof because of important factors like ultra violet rays. An asphalt and gravel roof can be adversely affected by ultra violet rays and will not maintain its integrity if water is ponding on top of it because it is moisture resistant rather than moisture proof. Alternatively Coal Tar Built-up roofing has a molecular structure that provides a natural resistance to water, ultraviolet rays and chemicals -things which are commonly found in a rooftop environment.
Learn more about our flat roof repair services on other flat roofing systems.
- TPO Roofing Systems (Thermoplastic Polyolefin)
- EPDM Roofing Systems (Ethylene propylene diene monomer)
- Modified Bitumen Roofing Systems (Tar & Gravel)
- PVC Roofing Systems (Polyvinyl Chloride)
Choosing us to perform your commercial flat roof repairs is the right decision. We value our clients and believe in 100% customer satisfaction. We provide 7 year leak free, product and labor warranty. Stop waiting and repair your roof today!