Several important factors come into play in protecting a commercial or strata property investment against the elements. Strategically choosing the type of roofing system used and having a proactive maintenance plan is are two very important factors. The performance of a roof has a profound impact on property operations, tenant & resident satisfaction and property owner costs.
This article contains a summary of the information our property managers share with clients seeking to understand their roofing system and the importance of maintenance. We often share this type of information with clients such as commercial building owners & lease holders through to strata councils & residents of condominiums. Read on to get the information you need to understand flat roof system types and the maintenance that goes with them.
Flat roofs are the most common type of roofing system in use for commercial properties and certain types of strata developments such as low-rise apartments and high-rise condominiums. The most prevalent 5 types of flat roofing systems are:
- Built Up Roofing (also known as BUR)
- Modified Bitumen Roofing
- Ballasted Roofing
- Single Ply Roofing
- Green Roofing Systems
Built Up Roofing (BUR) is also referred to as a tar and gravel roof. It involves a tar infused felt being rolled onto the roof with overlap between layers. Liquid tar is applied to the surface and in between the overlapping layers. Depending on conditions, generally this type of roof lasts 10 to 15 years and then will need additional layers added. A topping material, such as small rock, can be used to protect the roofing system and prolong the useful life of the roof.
