Is vinyl siding fire resistant?

This blog post will answer the question, “Is vinyl siding fire resistant” and cover topics like fire-resistant properties of vinyl siding and frequently asked questions related to the topic.

Is vinyl siding fire resistant?

Yes, vinyl siding is fire resistant. Vinyl siding resists fire, is more difficult to burn, and is simpler to extinguish.

Fire Facts About Vinyl Siding

According to Fire Rescue, here are some facts concerning vinyl siding.

  • Vinyl siding is tougher to burn than many other construction materials since it is mostly made of PVC, which is flame resistant by nature owing to its chlorine basis.
  • PVC has one of the low fire spread ratings, which means it won’t usually contribute to a fire’s spread.
  • Vinyl-clad dwellings burn up quite quickly owing to the low oxygen content.
  • Vinyl siding is not a cause of house fires in the great majority of cases. Only 4% of all home fires begin on the exterior of the building.
  • The National Fire Protection Association doesn’t attribute any home fires to external wall coverings (including vinyl siding, brick, and stucco).
  • Through its approval as a home wiring insulator, the National Fire Protection Association’s National Electrical Code acknowledges vinyl’s outstanding fire-safe qualities.
  • Certain vinyl siding is recognized by Underwriters Laboratories, Inc. in fire-resistant construction.

How Prevent a House Fire From Starting?

Even with Flame Retardant Vinyl Siding, house fires may occur.

  • Install smoke alarms in every bedroom, outside every sleeping area, and throughout the house, including the basements. Install alarms in the sitting room (or family room) or near the stairwell to the top floor on levels without bedrooms, or both.
  • Combustible materials should be kept in well-ventilated places and the appropriate container.
  • Inspect your chimney on a regular basis and clean it each year before “fire season” to avoid creosote accumulation. For maximum safety and efficiency, keep your wood stoves, and fireplaces clean and in excellent working order.

The Differences Between Hardie Board and Vinyl Siding

A home’s siding is important, even though it is frequently overlooked. It will eventually be necessary to renovate or replace your home’s siding. If you’re thinking of upgrading your home’s siding but aren’t sure where to start, we can assist! 

Discover the distinctions between Hardie board and vinyl siding, then weigh your alternatives for your project!

Comparison between vinyl siding and Hardie board

  • Thickness. Hardie board siding is stronger than vinyl siding, ranging in thickness from 5/16 to 1/4 inch. Vinyl siding, on the other hand, is much thinner than Hardie board. 

The thickness of vinyl siding varies from 0.040 and.046 inches. It may be reinforced with insulation or foam or insulation to enhance the thickness.

  • Flammability. Vinyl siding is not as fire-resistant as Hardie board. Because it is constructed of components that are comparable to cement, it is difficult to burn. 

Hardie board is less combustible than vinyl siding. When vinyl siding is coated with a flame retardant, it helps to delay the spread of a fire, but it is not as fire retardant as Hardie board.

  • Durability. Vinyl siding and  Hardie board are both very long-lasting. They don’t usually attract hazardous insects, and if they are, the Hardie board will fracture. It is not going to warp. When vinyl siding is hit, it will deform or crack. 

It’s more susceptible to warping, and even a little contact from a lawnmower may cause it to distort. Because it’s more flexible and pliable than Hardie board, it’s less prone to break.

  • Pricing. Vinyl siding is often less costly than Hardie board siding since the installation procedure is faster.

What is the most fire-resistant siding?

When it comes to choosing the outside of a home, most people consider the appearance. However, you must consider beyond the beauty to protect your property from fires. 

According to studies, western states will face more fire breaks than ever before. This occurs as a result of increased climate change and deforestation.

You can’t make your home completely fire-proof, no matter how hard you try. However, adopting the correct outside cladding may significantly increase your home’s fire protection.

Some materials burn more slowly than others. Metal, for example, takes far longer to ignite than wood and so protects your home’s inside.

So, if you’re ready, here are the five finest siding alternatives for making your home’s exterior fire-resistant. Let’s look at your alternatives.

  • Siding in Metal
  • Fibre Cement Siding 
  • Siding made of brick and stone
  • Stucco Siding
  • Wood Siding
  • Vinyl Siding

I will now elaborate on the guidance given above.

Siding in Metal

For obvious reasons, the aluminum metal exterior is the #1 suggestion on our list. Any metal, even aluminum, is fire resistant. They cannot catch fire or cause it to spread. 

The fire resistance of most aluminum siding types is evaluated after production. Fortunately, fire has little effect on metal.

It has received incombustibility certification. This siding is not only fireproof, but it can also protect the outside of your home from wind, heavy downpours, and other dangerous elements.

Fibre Cement Siding 

Fibre cement boards are unrivaled in terms of fire resistance on the outside. Fibre cement exteriors are comprised of cement, and wood fiber, as the name implies. 

The majority of these fiber cement claddings have a class A fire rating. Because the warranty varies by brand, you should first examine the product description.

Please remember that this fiber cement covering isn’t completely fireproof, and it may still catch fire. Fibre cement siding, on the other hand, takes far longer to catch fire than wood or vinyl siding. 

Furthermore, a fiber cement exterior requires many hours of steady heat to fully melt. Both of these features provide the homeowner enough time to notify the fire department before irrevocable harm occurs.

The fact that the fiber cement is flame-resistant has no bearing on its long-term endurance. It has a 50-year projected lifespan, is user-friendly, and is resistant to water and climate.

Siding made of brick and stone

Natural fire-resistant items include brick and stones. They do not catch fire or propagate fire. Many experts believe that the home catches fire when flames get behind the siding. It may cause harm to the inside walls in this manner.

A stone and brick façade, on the other hand, may avoid this since it lacks caulking, which prevents fire from touching the stud cavity. As a result, the internal home walls are spared from catching fire.

Stucco Siding

Stucco is the penultimate option on our list of fire-resistant siding options. This product is made up of a binder and water mixture. Stucco, unlike many other sidings, is applied wet. 

After that, it is sculpted to match the outside contour. This material is also often used to create a beautiful and detailed exterior.

The nicest thing about stucco is that it has no flammable materials in its formulation. However, stucco has a lesser flame resistance rating than the other outside alternatives on this list. 

Stucco can protect interior walls from fire for around an hour on average. It then fractures, perhaps causing the inside walls to burn.

Wood Siding

Siding is an investment, and if you want it to endure, be prepared to spend a lot of money. Sadly, not every homeowner can completely renovate their home’s exterior to make it flame-resistant. 

People whose homes already have fire-resistant siding will have no problems. But what about houses with wooden siding?

It is well known that wood is very flammable. Within an hour, a few minutes of steady flame would have set your home on fire. However, there is a solution to improve the fire resistance of your wooden exterior.

The procedure is straightforward. Get some “Flame Retardant Spray,” a chemical spray that protects wood siding from fire. It may not make your wood exterior completely fireproof, but it significantly minimizes the likelihood of a fire expanding. 

One thing to remember is that wood panels contain gaps and stud spaces between them, which may allow flames to spread from the interior. And this might cause damage to your home’s internal walls.

Vinyl Siding

Wood siding is the first and most evident most flammable siding, as we have previously established. However, there is one kind of siding that is very flammable and may do major damage to the internal walls of your home. Vinyl is the outside option we’re considering.

Because of its adaptability, this product became popular in the previous century. The color selections are endless, and vinyl comes in a variety of shapes and sizes, including vinyl shakes and shingles. This siding has a 20-year guarantee, and many people are interested in it.

However, there is a catch. Vinyl is not eco-friendly since it is composed of plastic, and it would not be able to maintain your home’s exterior or inside in a direct fire. 

Since FEMA (Federal Emergency Management Agency) does not suggest vinyl, you can appreciate the threat it poses. If you insist on using vinyl for your exterior, there is a method to make it safer. 

You may install 5/8″ gypsum boards with taped seams under the home wrap and siding. Finally, roof soffits and trimmings may contribute significantly to the spread of fire.

Frequently Asked Questions(FAQs), “is vinyl siding fire resistant?”

Which kind of siding is the most fire-resistant?

Brick and concrete siding is the most fire-resistant. Most metal siding is classified as non-flammable, which means it did not spark or spread flames in fire safety tests. 

Metal is likely one of the finest materials for reducing fire damage to your house. The use of brick and concrete veneers over timber frames greatly reduces the danger of fire.

What is the greatest home siding?

Vinyl, wood, and brick or stone are the most common siding alternatives for any house. Fiber cement is recommended for homes that are exposed to more cold than warm temperatures.

Is composite siding resistant to fire?

Siding Composite

The material is resistant to fire and will always safeguard your property. The Everlast composite siding brand provides the most fire-resistant siding materials available.

Is fiber cement siding resistant to fire?

In locations prone to wildfires, having a house or company with fiber cement cladding on the outside delivers significant advantages, including peace of mind. Fiber Cement Siding has a fire/flame spread rating of Class 1(A), which is the highest grade attainable.

Is metal siding resistant to fire?

Steel and aluminum siding can survive not just fire, but also a variety of other natural elements. It doesn’t bend in the face of high winds, decay in the presence of dampness, shatter in the presence of hail, or melt instantly when engulfed in flames. Metal siding minimizes the chance of a fire starting and spreading.

Is vinyl siding flammable?

Because vinyl siding is mostly made of PVC, which is naturally flame retardant owing to its chlorine basis, it is more difficult to ignite than many other construction materials. PVC has one of the lowest fire spread ratings, which means it won’t help a fire spread.

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