Home ImprovementThe Ultimate Guide To Installing Commercial Roofing

The Ultimate Guide To Installing Commercial Roofing


Every shelter needs a layer of protection to protect them from unforeseen calamities. This is where the roofing system comes in useful. A brilliantly designed roofing system is the robust topmost covering of any building and includes construction materials that support the walls and keep the building upright. It protects gigantic infrastructures from extreme temperature fluctuation. 

A roof is an integral part of the skeleton of a building. As mentioned above, its primary function in commercial roofing is to protect any commercial property from extreme elements of nature. The differentiating factor for this, that sets it apart is that the building’s size determines the roof’s slope. This type of roofing possesses flat or minor sloped roofs that are mostly invisible from the ground. They are composed of a wide range of materials directly proportional to the prevalent climate and building structure. Advance Roofing LLC is an elite company that offers best-in-class roofing services in the United States. So, next time you seek the best roofing services, you know where to go!

What makes commercial roofing famous in the market?

This is prevalent and used with combinations of various materials and slope types for the following reasons-

  • Convenient to install and incurs low cost of installation.
  • Low costs of maintenance and repair.
  • High versatility is shown on the top floor of any building
  • Resistant to high-velocity wind
  • Energy efficient

Residential vs. Commercial Roofing

Residential roofing is primarily found with steep slopes visible from the ground through the naked eye. They are smaller and composed of asphalt shingles, slate, and architectural tile, to name a few. This roofing system is convenient to install and maintain at the site. On the other hand, the commercial one is relatively flatter in structure, so it can easily accommodate solar panels. Unlike residential roofing, this kind requires the chosen material to be influenced by the size, natural elements, and the type of design required. The main of this roofing system is to ensure longevity and easy maintenance.

Common shapes:

Low slope roofs- This shape is used for building roofing systems for big box stores, warehouses, and shopping centers. One can find various options in these criteria, such as PVC, EPDM, and TPO.

Steep slope roofs- This type of shape is comparatively used more for single and multi-family home setups. For building steep slope roofs, shingles, slate or tile are used.


Various types of commercial roofing systems are installed in numerous infrastructures based on several factors. These types are as follows-

Single ply roofing

  • Flexible
  • Solid
  • Resists cracking and peeling
  • Resistant to harsh weather

Thermoplastic Polyolefin (TPO)

  • Composed of polypropylene
  • Most commonly found on low roofs
  • Single-layered ply
  • Reflective and well-resistant to heat

Ethylene Propylene Diene Monomer

  • Highly elastic and tough
  • Resistant to UV rays
  • Cost-effective
  • Extensively used in low-slope commercial buildings

Modified bitumen roofing system

  • A mixture of bitumen and a unique polymer
  • Highly resistant to temperature and flexible
  • It can be applied in multiple layers

Quick steps to install low-slope roofing

  • Sheet fasteners are used to install base sheets on the roofing system or roof decks in a few cases.
  • Asphalt bonding should be spread over the roof, wherein hot application should be performed to conceal the base.
  • Plies and asphalt should be laid out consecutively once the base is prepared.
  • The topmost layer should be pebbled using appropriate aggregate.

Quick steps to install steep-slope roofing

  • Underlayment should be run 6 to 8 inches above the sidewalls, behind the step flashing.
  • Underlayment should be run at edges to prevent high-incurring damage.
  • Ice guard should be applied in valleys as it possesses sealing properties.
  • Adding a roofing membrane at the ridges is recommended as it protects the sensitive hips.
  • The membrane is recommended to be 12 to 14 inches on the steep roof.


The process is a solid way to protect your commercial space from extreme calamities. It comes in different shapes and materials, depending on the infrastructure. So, next time you want to install this system, consult with the experts at Advance Roofing LLC.

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