Your roof is one of the most important parts of your home, so it’s important to protect them against the elements, especially fire damage. In today’s post, the top residential roofing expert, M & A Roof Home Improvement, shares a quick guide on roof fire ratings.
Class A Roofing
Class A roofs are the top choice for any homeowner and is strongly recommended for homeowners living in areas that are prone to wildfires. For a roof to achieve a Class A rating, it must withstand severe fire exposure. Here are some parameters to measure its effectiveness; experience a max flame spread of 6 feet, withstand a burning brand weighing 2000 grams, last two to four hours before setting on fire, and resist 15 cycles of a gas flame turned on and off.
Before installing one, ensure that they’re installed by a certified contractor that can follow the manufacturer’s instructions to a T. This is to ensure that the materials used on your roof can garner a Class A rating.
Class B Roofing
A class B roof is effective against moderate fire exposure. A class B roof can withstand a maximum flame spread of eight feet, a burning brand weighing 500 grams, last one hour before ignition, and resist eight cycles of a gas flame shut on and off. One of the most common roofing materials by a roofing contractor is pressure-treated shakes and shingles.
Class C Roofing
A class C roof can only provide minimal flame protection for your roof. These roofs can experience a max flame spread of thirteen feet which can cause severe damage. They can also withstand a burning brand weight 1/4th of a gram, last 20 minutes before ignition, and lastly, resists against three cycles of a gas flame turned on and off. A few examples of these roofing materials are wood shakes, shingles, plywood, or particleboard, which are all prone to catching fire.
Lastly, if you find out that a roof is unrated, this means that it doesn’t even provide minimal flame protection for your home, and you should avoid it at all costs.
M & A Roof Home Improvement is the trusted name when it comes to residential roofing and roof repair services. Give us a call at (757) 779-5244. You can also fill out our contact form to schedule an appointment. We serve customers in Norfolk and Williamsburg, VA.