Fiber Cement vs. Steel Siding: Which Option Is Best?

Ted

An aerial view of a home with a white metal roof and TruLog steel board and batten siding in Matte White

When it comes to protecting your home’s exterior, the right siding material makes all the difference. Two popular heavy-duty options — fiber cement siding and steel siding — stand out for their durability and resilience. Both are popular choices among homeowners looking for high-quality, long-lasting, good-looking siding materials, but which one delivers the best value for the investment? 

This comprehensive fiber cement vs. steel siding comparison examines how these siding materials stack up across cost, durability, fire resistance, maintenance requirements, and more.

Understanding Your Siding Options

Before looking at comparisons, let’s clarify what these materials actually are.

Fiber cement siding, often called Hardie board or Hardie plank siding, combines cement, sand, and cellulose fibers to create a sturdy, versatile cladding option. Hardie plank and other fiber cement products can give the popular appearance of woodgrain while offering performance benefits beyond basic materials.

Steel siding, a type of metal siding, comes in a variety of styles — board and batten, lap, and log — as well as color options. It provides exceptional strength and longevity. Unlike aluminum or vinyl siding, which can dent easily, steel offers remarkable resistance to impact, weather, and time itself.

Fiber Cement vs. Steel Siding: An In-Depth Comparison

The three-car garage of a home with TruLog steel log siding and stone accents

Let’s take a closer look at fiber cement vs. steel siding to see which one wins out in the areas of:

  • Cost
  • Fire resistance
  • Rot, pest, and moisture resistance
  • Upkeep
  • Lifespan

Cost: Which Is More Affordable?

The cost of new siding is important when comparing two materials. You need to know the upfront costs and then consider the material’s long-term value (which we’ll cover in the following sections).

The cost of fiber cement siding can vary based on the brand, style, and region, but on average, it ranges from $4.70–$8.50 per square foot for materials alone. While the material itself is moderately priced, labor can drive up expenses due to its weight and the need for specialized cutting tools. Expect to pay another $5–$9 per square foot for labor and installation.

Steel siding material costs range from about $4.25–$8.25 per square foot. Thicker, corrosion-resistant panels are on the higher end but offer better durability against dents and harsh weather conditions. While the material cost is comparable to fiber cement, installation costs could be slightly lower since steel siding panels are lighter, easier to handle, and cover more area more quickly. Labor and installation is typically $5–$8 per square foot for steel.

Winner: Steel siding wins out on cost, especially when considering lifetime value and lower installation costs.

Fire Resistance: Which Is More Fireproof?

Smoke and flames from a wildfire in a residential area

Fire resistance and safety is a critical consideration for any siding choice. Fortunately, both fiber cement and steel siding are among the best, but is one better than the other?

Fiber cement siding is non-combustible, thanks to its mix of cellulose fibers, sand, and cement. That means it won’t ignite or spread flames, making it a solid choice for wildfire-prone or rural areas.

Steel siding is equally fireproof. In fact, steel siding from TruLog has a Class A fire rating, the highest possible. It won’t ignite, melt, degrade, or warp under extreme heat, offering unmatched protection. Paired with metal roofing, it creates a fire-resistant exterior and may contribute to lower home insurance premiums.

Winner: Both materials are fire-resistant.

Rot, Pest, and Moisture Resistance: Which Is More Durable?

Water damage is the enemy of any home exterior. Neither material rots or attracts pests, but how do they handle moisture?

Fiber cement siding is resistant to rot, insects, and termites, making it a durable option for long-term use. However, it is susceptible to moisture if not properly sealed and caulked. Regular maintenance, including repainting and checking for cracks, is necessary to prevent water damage.

Steel siding boasts superior rot resistance and is impervious to insects and termites. Unlike fiber cement, it does not absorb moisture, eliminating concerns about water damage and the cost of regular maintenance to prevent it.

Winner: Steel siding is completely immune to rot, pests, and water absorption.

Upkeep and Maintenance: Which Siding Demands Less Work?

Low-maintenance siding saves time, money, and headaches over the years. When it comes to fiber cement vs. steel siding, which one lets you live that worry-free life you crave?

Fiber cement siding requires regular upkeep to maintain its appearance and integrity. This includes repainting every 10-15 years, checking the caulking around joints and seams, and promptly repairing chips and cracks to prevent moisture infiltration. Cleaning involves gentle power washing to avoid surface erosion. While not entirely maintenance-free, it offers a good balance between longevity and upkeep.

Steel siding is known for being ultra-low maintenance. Its durable surface never requires repainting, and it resists warping and fading. Occasional cleaning with soap and water is usually sufficient to keep it looking new. Steel siding is often considered maintenance-free in comparison to other types of siding.

Winner: Steel siding is virtually maintenance-free throughout its lifespan.

Lifespan and Warranty: Which Lasts Longer?

Siding is a home’s greatest form of protection from the elements, as well as a major contributor to curb appeal. Homeowners seeking to keep their siding looking and performing like new for as long as possible should consider the lifetime value when making a selection.

Fiber cement siding typically comes with a lifespan of 30-50 years, depending on the manufacturer and maintenance. James Hardie, a leading brand in fiber cement products, offers warranties for 15 years for its line of siding that is infused with color, and up to 30 years for its primed siding when professionally installed , ensuring homeowners a good long-term investment.

Steel siding can last 40-70 years or many more, depending on the quality and environmental conditions. Most manufacturers provide extended warranties, such as the 30-year paint coat warranty by TruLog on all of its steel siding products.

Winner: Due to its longer lifespan, steel siding edges out fiber cement in terms of longevity.

Is Fiber Cement Siding Better Than Steel Siding?

A beautiful home featuring TruLog steel board and batten siding in Dark Charcoal with mountains in the background

Both fiber cement and steel siding provide aesthetic versatility, traditional wood-look appearance options, and a longer life than vinyl, aluminum, and wood. However, steel siding comes out ahead in longevity, maintenance requirements, and extreme weather resistance. For homeowners seeking the absolute lowest-maintenance option with the longest lifespan, steel siding offers more advantages. 

Here’s where TruLog steel really shines:

  • Dent resistance: Heavy-gauge steel withstands hail and other impacts better than fiber cement.
  • Eco-friendliness: Steel is 100% recyclable; fiber cement is not.
  • Installation ease: The lighter weight reduces labor time and costs.
  • Weather performance: Steel won’t warp, crack, or absorb moisture.
  • Fire resistance: TruLog siding has a Class A fire rating.
  • Maintenance: Only steel siding is nearly maintenance-free over its entire lifetime.

Ready to Make Your Final Decision?

Choosing between fiber cement siding and steel siding ultimately comes down to balancing several factors:

  • Budget considerations: While initial costs are similar, steel typically offers lower lifetime expenses due to its reduced maintenance and longer lifespan.
  • Climate factors: In extreme weather regions, steel’s superior impact and moisture resistance may be decisive.
  • Maintenance tolerance: Homeowners wanting the lowest possible maintenance should lean toward steel.
  • Environmental priorities: Steel’s recyclability makes it the more eco-friendly choice.

When it comes time to choose, remember to consider the overall value of each option, including upfront costs, installation, maintenance requirements, and expected lifespan. 

Download the TruLog steel siding catalog to learn more about the benefits, available styles, and more.

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