Commercial Roofing: Some Things You Should Know

Yes, it matters what type of roofing you put on your commercial building. When you consider the building type and class, the outside elements, fire-resistance, and energy-efficiency, the material you use to build your roof makes all the difference. Below we dive into the complex world of commercial roofing and simplify a few key terms:

Low Slope Commercial Roofing

Low slope roofing is a mainstay of large-scale commercial and industrial building construction. Examples of the types of buildings that our contractors work on include: warehouses, factories, malls, or schools. It is also ideal for larger residential facilities such as apartment buildings and townhouses. The term low slope refers to a minor incline (3 inches per foot) in the angle of the roof from the base to the crest.

Why do contractors build low slope roofs?

  • Sufficient water run-off or drainage
  • Added dimension in the roof design
  • Maintenance and repairs require less effort because roofers can easily walk on the surface.
  • Low slope roofs are cost-effective because they require fewer materials than a roof with a steep slope.
  • Heating and cooling costs are lower with low-sloped roofs, because there is less space to control the temperature.
Commercial Roofing as a Whole

Commercial roofing is a broad concept that can include different types of roofing membranes built from a several materials, including rubber. Some of the most common types are:

  • Ethylene Propylene Diene Monomor (EPDM)
  • Thermoplastic Membrane (TPO)
  • Modified Bitumen
  • ?Polyvinyl Chloride (PVC)
FYI: EPDM Advantages:
  • Roofs made with rubber create a water-tight proper seal that is either seamless or connected using an impenetrable seam.
  • The membrane is far easier to repair or patch up than asphalt-based roofs.
  • It can withstand the effects of UV rays and extreme heat during the summer.
  • They can resist expansion and contraction. Thus, they’re less likely to tear or come apart at the seams.
  • The newer roofing systems are directly attached to the roof using adhesives.

Do you have further questions? Contact All-South Subcontractors. We provide a wide range of construction services and products for both residential and commercial properties throughout southern Alabama. Call us today at 205-836-8111 (Birmingham), 251-621-8420 (Spanish Fort), or visit

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