Categories FAQ

Question: Are asphalt shingles combustible?

Asphalt shingles or roll roofing are made of asphalt with natural fiber or glass fiber felt and are combustible. These are surfaced with mineral grit (like sand) to give them color and to make the surface less ignitable.

Are asphalt shingles flammable?

There are three different classes of fire ratings given to asphalt shingles – A, B and C. These shingles will be effective against moderate fire exposures, are not readily flammable and will not cause fires to spread. Class B Fire Rating – Shingles that offer moderate fire resistance are classified as Class B.

Are asphalt roof shingles fireproof?

Unlike wood shingles, asphalt shingles can last two hours in a fire before catching, making them a fairly fire-resistant material that is also extremely affordable.

Are shingles highly flammable?

Here’s an overview of the four classifications: Class A – Class A shingles have the highest fire resistance and are the least flammable, making them a necessity in areas prone to wildfires and the preferred choice among homeowners.

What is a non combustible roof?

Metal roofing is non-combustible and offers Class A protection in combination with a fire-resistant underlayment. It’s lightweight, won’t corrode, and requires little maintenance. Metal roofing can be made from copper, zinc and steel, as well as various alloys, and comes in a variety of finishes, colors, and designs.

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How much heat can asphalt shingles take?

That means your asphalt shingles can reach temperatures of 160 degrees Fahrenheit on a 100-degree Fahrenheit day. The roofing shingles may remain at a sustained temperature of 160 degrees Fahrenheit for up to five hours if the shingles are exposed to direct sunlight.

Which roofing material is not suggested in a fire zone?

Non-fire retardant treated wood shakes are not rated (i.e., their rating doesn’t meet the requirements for Class C) and should not be used in wildfire prone areas. Class A materials include flat or barrel-shaped roof tiles, fiberglass asphalt composition shingles, and metal roofs (i.e., steel or copper).

What type of roof is fire proof?

Class A is the most fire-resistant and should be the choice of anyone living in wildfire-prone areas. Common Class A roof coverings include asphalt fiberglass composition shingles and concrete or clay tiles.

Can shingles melt?

The heat can also cause the shingles themselves to dry out and even melt a little. Then as the temperatures cool, the shingles contract and crack. One sign that your asphalt shingles are degrading is when you notice tiny granules in your gutters or on the ground, especially after a storm.

Are roofs fireproof?

There truly is no such thing as a completely fireproof roof. That term suggests that a roof will never burn, flame up or melt. There’s really no roof material that provides that type of full, fireproof protection.

How do you fireproof a roof?

Here are five tips to fireproof your roof from our team of roofing professionals.

  1. Check the fire ratings on your roofing materials.
  2. Cut away branches and leaves hanging near your roof.
  3. Clean dirt and debris out of your gutters.
  4. Create a reduced fuel zone around your home.
  5. Inspect for signs of aging or damage regularly.
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Can roof tiles burn?

Although made of fire-resistant materials, terracotta and cement roof tiles are vulnerable to penetration by windblown embers generated in wildfires, according to new research findings* from the National Institute of Standards and Technology (NIST).

What are the types of roof?


  • Gable roof. The term ‘gable’ refers to the triangle spot that is formed when the two pitched areas of the roof meet.
  • Hip. Hip roof is slightly more difficult to build and usually has 4 sides.
  • Dutch.
  • Mansard roof.
  • Flat roof.
  • Shed roof.
  • Butterfly roof.
  • Gambrel roof.

Is a metal roof fireproof?

Metal roofs are actually fire-resistant, but only up to a certain degree. Most metal roofing is considered to be Assembly-Rated Class A, meaning the covering and underlying materials provide additional fire protection. This makes metal roofs one of the most fire-resistant options on the market for roofing materials.

Do roofs need fire rating?

The highest standard in fire resistance for roofing materials is the Class A designation. These materials provide the best protection against fire. In some cases, a roofing material will be completely fireproof, which can add extra protection and peace of mind for your property.

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