6 Common Commercial Roofing Terms Defined

6 Common Commercial Roofing Terms Defined

If you are new to the commercial roofing world, it’s likely that you will be exposed to a lot of new terms and concepts that you aren’t familiar with. It’s only natural to feel a little overwhelmed, but the commercial roofing world isn’t as difficult to understand as you might initially think. Custom Roof Company has been helping customers with their commercial roofing needs for over 24 years and we would love the opportunity to show you why we are the best. We wanted to put together a list of some of the most common commercial roofing terminology for you so that you can get a good idea of the basics. Keep reading on to learn more!


This is a very common term in the roofing world. Flashing is a word that refers to the components that help to weatherproof or seal the edges of a roof. There are various places on commercial roofs that need flashing to keep water out, such as at drains or skylights.

Thermal Stress

A lot of roofing terms are related to weather and how the roof can protect the structure from weather-related damage. Thermal stress is one of those terms. It refers to the impact that external temperatures have on your roof system over time. Thermal stress is inevitable and will cause wear and tear on your roof over time. That’s why you should hire a roofing company like Custom Roof Company for regular maintenance.


EPDM is a special material that is used to create a special type of roof. It stands for Ethylene Propylene Diene Monomer. EPDM is a single-ply rubber material that is durable and easy to install. IF you are looking at commercial roofing materials, you should definitely consider EPDM.


Exposure is a commercial roofing term that refers to the top layer of the roof that is directly exposed to the elements. Sun, rain, snow, and more can all be elements that your roof is exposed to.

Galvanized Steel

When you go with metal for your commercial roofing, galvanized steel is a great choice. Galvanized steel is steel that has been chemically coated with zinc to make it stronger and more resilient against corrosion.


HVAC is an abbreviation for Heating, Ventilation, and Air Conditioning. Roofers will need to be conscious of a building’s HVAC setup when they are working on a commercial roof installation. Wherever the HVAC meets the roofing, there is a great chance for leaks.

We hope this list has provided some valuable insight into the commercial roofing world. The terms might be unfamiliar to you at first, but they are fairly easy to understand after you hear them once or twice. If you are looking for more information on commercial roofing or if you are looking for the best commercial roofing company, contact Custom Roof Company today. We can assist you with all of you commercial

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