Business and Strata Property Roofing: Understanding Flat Roof Programs and Upkeep

A number of essential elements come into play in defending a business or strata property funding in opposition to the weather. Strategically selecting the kind of roofing system used and having a proactive upkeep plan is are two crucial elements. The efficiency of a roof has a profound impression on property operations, tenant & resident satisfaction and property proprietor prices.

This text incorporates a abstract of the knowledge our property managers share with purchasers searching for to grasp their roofing system and the significance of upkeep. We regularly share this kind of info with purchasers reminiscent of business constructing homeowners & lease holders by to strata councils & residents of condominiums. Learn on to get the knowledge it’s worthwhile to perceive flat roof system sorts and the upkeep that goes with them.

Flat roofs are the commonest sort of roofing system in use for business properties and sure forms of strata developments reminiscent of low-rise residences and high-rise condominiums. Essentially the most prevalent 5 forms of flat roofing methods are:

  • Constructed Up Roofing (also called BUR)
  • Modified Bitumen Roofing
  • Ballasted Roofing
  • Single Ply Roofing
  • Inexperienced Roofing Programs

Constructed Up Roofing (BUR) can also be known as a tar and gravel roof. It includes a tar infused felt being rolled onto the roof with overlap between layers. Liquid tar is utilized to the floor and in between the overlapping layers. Relying on situations, usually this kind of roof lasts 10 to 15 years after which will want extra layers added. A topping materials, reminiscent of small rock, can be utilized to guard the roofing system and extend the helpful lifetime of the roof roofing company san diego.

Modified Bitumen Roofing is a hybrid of the BUR system the place the fabric is manufactured in a manufacturing unit and is available in rolls to be utilized to the roof deck. The fabric itself is modified tar or asphalt with rubber sometimes added for improved efficiency. Usually a BUR roof underlay is used earlier than the appliance of the modified bitumen which is utilized with adhesive, torch, or sizzling mopping. A topping materials is generally required to guard the roofing system. The lifespan of this kind of roof sometimes exceeds 20 years.

Ballasted Roofing is a membrane roofing system that’s normally unfastened laid on the roof deck and held in place by the burden of a topping reminiscent of small rocks or precast concrete pavers. A typical materials used as such a membrane is EPDM (Ethylene Propylene Diene Monomer). Seams and the membrane are joined with an adhesive. When nicely maintained, a ballasted roof will usually final over 30 years.

Single Ply Roofing methods merely a single ply sheets of a roofing membrane constituted of a number of forms of artificial polymers. In the course of the set up, they’re sealed at joints to create waterproofing. Whereas they sometimes include a better price ticket, you get what you pay for. Single ply membrane roofs can outlast nearly some other roof sort, nevertheless, it’s vital to decide on a single ply membrane with a heavy base layer and powerful knit design. These membranes are usually glorious in UV and tear resistance; two elements that drive their longevity. In concept, with correct care and upkeep, a single ply membrane roof can final over 50 years. In observe, the higher engineered ones have been invented about 25 years in the past and right now the failure & alternative price might be as little as 1%.

Inexperienced Roofing Programs have been used for hundreds of years in Europe to scale back energy consumption and handle the warmth of metropolis buildings. This development has been catching in North America lately. Inexperienced roofs gradual roof water drainage down, permitting vegetation to retailer the water and have water evaporate to the environment instantly from the roof. This reduces the burden on each constructing and metropolis drainage methods tremendously. The idea for a inexperienced roofing system is usually the identical, mechanically talking, as a ballasted roof. As an alternative of the usage of unfastened rock, soil and vegetation are utilized. Nevertheless, the important thing distinction is that the fabric for the roof additionally should serve a twin perform as a root barrier stopping penetration of roots into the roofing. It’s advisable to think about the usage of a roofing membrane specifically designed for inexperienced roofing. A nicely designed and put in inexperienced roof can final over 20 years.


No article on constructing supplies and know-how ought to finish with no point out of upkeep. All roofing must have a strong preventative upkeep program in place together with the elimination of particles and grime, inspection for injury, in addition to the cleansing of downspouts and gutters commonly.

The roof and flashing (the sheet metallic which surrounds joins and corners and directs water away from the roof) will need to have injury or cracking repaired a minimum of yearly. The lifespan of the roof needs to be assessed as a part of the upkeep course of and a provision for improve or alternative needs to be part of the budgeting and capital planning course of for the property.

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