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MAINTAINING THE HOA's ROOF

March 26, 2020

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Types of Commercial Roofing Systems

March 27, 2017

 

Most low-slope commercial roofing systems have three principle components:

  • Weatherproofing layer or layers — the weatherproofing component is the most important element because it keeps water from entering a roof assembly.

  • Reinforcement — reinforcement adds strength, puncture resistance and dimensional stability to a membrane.

  • Surfacing — surfacing is the component that protects the weatherproofing and reinforcement from sunlight and weather. Some surfacings provide other benefits such as increased fire resistance, improved traffic and hail resistance, and increased solar reflectivity.

If you’re in the process of constructing a new building, or planning the replacement of an outdated roof on an existing building, there are five main types of commercial roofing systems to consider:

 

Thermoplastic Roofing

TPO roofing systems are among the fastest growing commercial roofing systems. Made of an especially durable material with a low-temperature flexibility and a high-temperature tolerance, these roofs are exceptionally resistant to ultraviolet, ozone and chemical exposure. TPO roofs can be expected to have a lifespan of 20+ years, and also feature a high resistance to fire, punctures, chemicals and high winds.

 

EPDM Roofing

EPDM roofing offers superior durability and versatility, making it one of the longest lasting types of commercial roofs available. EPDM commercial roofing systems are also typically easier to install, maintain and repair than most other types of commercial roofs.

 

BUR (Built-Up Roofing) System
A traditional built-up roofing (BUR) system derives its name from the building of a roof on-site using layers of base sheet, interply sheets and cap sheet or other surfacing such as gravel or liquid coating.

 

Hot asphalt (bitumen) is the bonding and waterproofing agent between layers. BUR is suitable for most low slope roofing applications. The higher the quality of the BUR materials and asphalt used and th