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Commercial Roofing Systems


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Commercial roofing is sometimes described by the type of roof on the building: flat, low slope, shed, and steep slope, for example. In other cases, commercial roofing is described by the installation technique – such as “built-up roofing,” “standing-seam roofing,” “single-membrane roofing,” and “torch-down roofing.” Most frequently though, roofing is described simply by the material that’s being installed. Here are brief descriptions of the main commercial roofing materials being used today:

Metal roofing

Includes factory-made panels and flashing profiles, as well as roofing panels that are cut and formed at the building site. When installed on a sloped roof, metal roofing offers the benefits of energy efficiency (lower heat gain during warm, sunny weather) and low maintenance.

SPF (Spray Polyurethane Foam)

roofing is a popular commercial roofing option for flat and low-slope roofs. Applied with spray equipment, an SPF roof provides a seamless roof covering that can go over an existing roof or over new construction. SPF roofing is popular because it eliminates the need for most types of roof flashing and it also functions as roof insulation, lowering the building’s heating and cooling costs.

EPDM roofing

is sometimes referred to as “rubber roofing” because this roofing membrane material (technically known as ethylene propylene diene monomer) is black and flexible like a rubber inner tube. EPDM roofing can be installed on flat and low-slope roofs. Seams between adjacent EPDM sheets and metal flashing elements are typically sealed with a special adhesive.

SPF (Spray Polyurethane Foam)

roofing is a single-membrane system, just like EPDM roofing. Installed in large rolls, TPO can be installed with mechanical fasteners or by fusing seams with heat. The white TPO material used most often does a good job of reflecting solar radiation, which helps to reduce the demand for air conditioning in hot weather.

Modified bitumen roofing

is applied in rolls that are usually heated with a torch to seal seams and adhere the asphaltic material to the substrate and to flashing details. The popularity of more modern single-membrane systems (EPDM & TPO) has reduced the demand for modified bitumen roofing.

Asphalt shingle roofing

will always be popular. Plenty of commercial buildings with sloped roofs depend on asphalt shingles for weather protection. This roofing option is among the most affordable, and gives building owners many shingle styles and colors to choose from.

Which Roof is Right?

Because there are many different materials available for commercial roofing, it’s important to work with a knowledgeable roofing contractor who can explain the pros and cons of different materials.


There’s good news and bad news when it comes to commercial roofing. First, the good news. Today there’s an amazing selection of commercial roofing materials and techniques available, providing building owners with excellent options for commercial roof replacement, reroofing, and new roof installation.


The bad news is that this variety of commercial roofing options can make it very difficult to select the right roofing treatment for your commercial building. Adding to the confusion are the different acronyms used to describe various roofing types: SPF, TPO, EPDM, etc. However, there’s no need to worry. 

If you want to make sure you’ve got the right type of commercial roofing, you’ve come to the right place. Sorensen Roofing & Exteriors, G.C. will help you select a roofing or reroofing treatment that suits your building and your budget. If you are in need of commercial roof repair, replacement, or a new roof installation, contact us to schedule a free estimate today! Our commercial roofing contractors provide quality services for your property in Greeley, Fort Collins, Arvada, Littleton, Denver, Colorado Springs, Aurora, and throughout the surrounding areas.

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Can I Choose The Wrong Type Of Commercial Roof?

As you can see, there are a wide variety of roofing types to choose from for your commercial property. At Sorensen, one of the most common questions we hear when it comes to commercial roof installation, is “can I pick the wrong one?”

The good news is, there’s no catastrophically wrong answer. However, it is possible that you install a type of roof that isn’t optimal for your building’s unique use. For example, EPDM roofs may by tough, affordable, and long-lasting, they aren’t designed to handle harsh chemicals or oil, meaning they wouldn’t work well for restaurants or manufacturing businesses.

When you work with Sorensen, you’ll have an experienced commercial roofing contractor at your disposal who will help you wade through the options and pick the best roof for your building.

Choose Sorensen For Your CommercialRoofing Service Needs 

The expert commercial roofers at Sorensen Roofing & Exteriors are trained and certified to work with many different types of commercial roofing systems throughout Fort Collins, Greeley, Englewood, Boulder, Longmont, Broomfield, Denver, Colorado Springs, Littleton, Aurora, Arvada, and nearby. 

We provide commercial roofing services like roof repair, maintenance, and roof replacement to ensure that your commercial building is properly protected. Call us at (970) 286-0325 or send us an email to schedule an appointment today!


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