Roofing Systems and Their Fire Ratings

According to expert roofers, almost every kind of roofing system nowadays is made to last. In fact, whether you have asphalt shingles, metal roofing, or slate, it can last for a long time with the proper care and maintenance. However, just because it can last long, it doesn’t mean it’s invulnerable. In fact, a fire can easily ruin your roof. Thankfully, plenty of roofing manufacturers out there are creating roofs that can resist fire even better and if you want to install the right fire resistant roof on your home, you need to look at their fire ratings. 

These fire ratings include:

Class A Rating

When you’re looking at Class A roofs, it’s understandable that it’s the best choice when installing a fire-resistant roof and it’s the best material to consider if you live in areas that are prone to wildfires. This is because it can experience a maximum flame spread of 6 feet, last for 2 to 4 hours before it ignites, and resist 15 cycles of a gas flame turned on and off. Roofing materials that have a Class A rating include clay tiles, slate, asphalt glass fiber composition shingles, and concrete tiles.

Class B Rating

On the other hand, if you live in an area that has mild climates, then a Class B roof should suffice for your home. According to residential roofing pros, Class B roofing is effective against moderate fires and can experience a maximum flame spread of 8 feet, last an hour before ignition, and resist 8 cycles of a gas flame turned on and off. Materials that are classified as Class B roofs include pressure-treated shingles and shakes.

Class C Rating

Finally, Class C roofs only provide light fire protection for your home. Unlike Class A and B roofs, roofing systems with a Class C rating can withstand a maximum flame spread of 13 feet, last 20 minutes before ignition, and resist only three cycles of gas flame turned on and off. Roofing materials that have a Class C rating include untreated wood shakes and shingles, plywood, and particleboard and as such, they aren’t a recommended roof covering for your home.

Want to install a fire-resistant roof for your home? Don’t hesitate to approach Deschutes Roofing, the leading service provider to turn to when it comes to your residential and commercial roofing needs. Give us a call at (503) 928-8750 or fill out our contact form to get a free estimate from us today!