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Fire Resistant Roofing



In light of the recent devastation caused by wildfires over the last few years, the roofing industry has placed great importance on fire-resistant roofing. You should consider fire resistance when considering re-roofing options no matter where you live. Wind can sweep embers from neighborhood to neighborhood in seconds. Entire neighborhoods have been destroyed when the predominant roofing material was wood shakes, which is nothing more than a tinderbox on the roof. With the danger of wind-blown embers, fire-resistant roofing options are readily available today and you have a number of options to consider.

Fire Resistant Roofing

Metal Tiles are made of a material that does not ignite. They are made with fire-resistant barriers with a Class A protection. Most metal roofs are made of steel, copper, zinc, and alloys that are best for the dry environments and those prone to wildfires. Metal tiles are also non-corrosive and can even be designed to look like cedar shake or other more-attractive materials if you have the budget to do so. Slate is indestructible but expensive. Selective contractors have the skills to install it so you need to hire a qualified engineer or contractor to look at the load-bearing of your roofing structure before it can be installed. Slate requires braces or beams to be installed on your roof to hold the additional weight of the material on top of your building.

Concrete and Clay are common on both commercial and residential properties. Residential homes typically use clay over concrete tiles because the material is heavy, durable, and fireproof. The style can be designed to fit any architecture (Spanish, Southwest, or Mission) depending on your preference. The resistance to fire of roofing materials is based on a series of tests that are defined by a fire rating. We can help you find the right fire-resistant roofing option to match your style and budget. Roof fire ratings refer to how your roof performs in a fire on the exterior of your property. The rating is determined by a set of fire tests in a simulated fire. The three rating categories you need to know are listed below.

Class A Roofing Materials

Class A roofing can withstand severe exposure to fire and has the highest rating. It is recommended in areas where wildfires are common and include the following materials.

  • Concrete or clay roof tiles
  • Fiberglass asphalt composition
  • Shingles
  • Metal roofs

Class B Roofing Materials

Class B refers to any type of roof that can withstand moderate exposure to fire. Some areas ban the use of Class B roofing materials and blow, for safety reasons so be sure to check this with local authorities before making a roofing decision.

Class C Roofing Materials

Class C roofing materials are only able to survive light fire damage and include:

  • Wood shakes and shingles
  • Plywood
  • Particleboard

The difference between Class A and B roofing is how well they perform in the fire-resistance testing. One test measures how much a fire spreads on the tested material within 10 minutes. Class A roofs spread the fire 2 feet less than Class B roofs do as they are typically non-combustible. Class B are combustible materials that have been treated with chemicals to make them more fire retardant but these chemicals pose a risk.


The resistance to fire of roofing materials is rated based on a series of tests that are defined by a fire rating. If you are concerned about choosing fire-resistant materials, knowing the roof fire ratings can make all the difference. Call us today and we can discuss all the options with you so that you know exactly what materials fall under which class. We will help you find the right fire-resistant roofing to keep your building safe at a price you can afford.


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