Can you say how resistant your roof is to fire? Generally speaking, we are unaware of the essential factor about the roof that saves us from disaster and accidents. Yes, the roof panel is an important component in any industry to protect us from various external and internal factors. So, one of the variables that determine the quality of the roofing sheets is the fire ratings. Fire ratings are a classification that is given to the roofing sheets to prevent the spread of fire. So, the fire resistance that we refer to is how effective the roofing material resists fire. So, the roof fire ratings are given to roofing through various roof test methods. The ratings for each roof depend upon the spread of flame, burning brand, intermittent flame test, structural elements, and many more. Thus, before rating a roof, it undergoes various tests. Hence, let us know certain things to about roof fire ratings.
Class A rating:
The first classification of fire rating is class A. The class A rating roof is given to the panel that can withstand flame spread up to 6 feet. As mentioned earlier, one of the roof test methods is burning brand. The burning brand test is where the roofing material is subjected to fire sources and wind conditions at a time. Thus, the burning brand test of the class A rating roofing sheets should measure around 12″ x 12″ inches and should weigh about 2000 grams. Hence, these types of roofings are best for residential projects and can resist up to 15 cycles of flame. Some class-A-rated roof coverings are metal, slate, clay tiles, concrete tiles, and many more. Hence, purchase from the best metal roofing in Chennai for quality roofing panels.
Class B-rating:
Another type of classification of the fire ratings is class-B. This type of rating is an excellent option for moderate fire exposure. These types of roofing can withstand flame spread up to 8 feet. Similarly, the burning brand of class-B roofing should measure around 6″ by 6″ and should weigh up to 500 grams. This type of rating is given to the roofings like polycarbonate, pressure-treated shingles, and slates. The class-B-rating polycarbonate sheet price in Chennai is affordable compared to other roofing products.
Class-C rating:
The third type of classification given to the roofing panel is class-C. The class-C rated roofing can withstand flame spread up to 13 feet. The burning brand measurement of this roofing is 1.5″ x 1.5″ inches and weighs around 1/4 grams. These roofs can resist up to three cycles of flame spread. Hence, the class-C rated roofing is suitable for roof coverings and includes plywood, untreated shingles, and many more. If you are looking for class-C rated roof for your building purchase from the JSW roofing sheet dealer in Chennai who are well-known for their quality products.
Unrated roofing:
The roofing that is unrated means it has not even passed the class-c rating fire test. It means these types of roofings have the least resistance towards the fire and are not suitable for any roofing purposes. Thus, most of the building contractors never use unrated roofing for their construction.are the best dealers who provide quality and certified roofs that can prevent any disaster.
Hence, these are the important things you should know about fire rating. But choosing the right material is not enough, but you should also have a sturdy framework to make them stay in place. Thus, z purlin manufacturers are best for frameworks for roofs to work efficiently.