Vinyl vs. Fiber Cement Siding
Choosing the right siding for your home is a crucial decision that impacts not only the aesthetics but also the durability and maintenance of your property. Two popular choices are vinyl siding and fiber cement siding. While both have their advantages, they differ significantly in terms of performance, longevity, and resistance to various environmental factors. Here, we’ll delve into the key differences between vinyl siding and fiber cement siding, with a focus on the renowned James Hardie® fiber cement products.
As you read, keep in mind that both types of product can run into significant issues if not properly sealed and/or installed. Ensuring proper installation is the key to both aesthetic appeal and the longevity of the product.
Vinyl Siding: An Overview
Vinyl siding is a common choice among homeowners due to its affordability and ease of installation. Made from PVC (polyvinyl chloride), vinyl siding is available in a variety of colors and styles, mimicking the appearance of wood or other materials.
Pros of Vinyl Siding:
- Cost-Effective: Vinyl siding is generally less expensive than fiber cement siding.
- Longer Length Available: Longer lengths of 16' 8" is available in Double 4" and Double 4-1/2" Dutch Lap for fewer seams and a cleaner, straighter more professional look.
- Lightweight: Vinyl siding is significantly lighter than fiber cement siding, weighing approximately 60 pounds for a 100 sq ft area. (For reference, 100 square feet is equivalent to an area that is 10 feet wide by 10 feet high.) The lightweight nature makes it easier to handle and install, and it puts less stress on the structure of the home.
- Water & Pest Resistance: Vinyl performs well against exposure to the elements, typically withstanding water, insect, and damage from wildlife (like woodpeckers and rodents). Vinyl siding is the ideal solution for areas where the wall meets the roof, as these spots often face issues with water, snow, and ice. It effectively handles these challenges, making it perfect for such locations.
- Low Maintenance: It requires minimal maintenance, primarily just occasional cleaning, and is typically the easiest of all siding types to repair.
- Variety: Available in numerous colors and styles, allowing for versatile design options.
Mastic is often our vinyl siding of choice, and we share the details of a wonderful recent vinyl installation project in Arlington Heights, IL.
Cons of Vinyl Siding:
- Fire Risk: Vinyl melts quickly when exposed to high heat or direct flames, posing a fire risk. We see this surprisingly often: check out the pics below from a recent project where a barbecue grill was too close to the house!
- Weather Vulnerability: Vinyl can become brittle in extreme cold and may warp or crack under intense heat, as high heat can cause the siding to expand. If the siding is not installed with enough room for this expansion, it can warp, buckle, or even sag. This not only looks unsightly but can also compromise the siding's ability to protect your home from the elements.
Additionally, hailstones, especially large ones, can dent or crack vinyl siding. Unlike more flexible materials, vinyl can shatter or splinter upon impact, leading to visible cracks and holes.
- Overall Value: Being the most affordable, vinyl siding is considered a more economical option that may not significantly increase property value.
- Issues with Vinyl Accessories: When it comes to vinyl siding, an issue we frequently encounter is damage to the lower parts of corner posts and accessories from lawnmowers or other impacts. These components are close to the ground and thin, and their replacement, unlike with vinyl siding panels, is a more complicated repair, requiring significant experience and time.
Fiber Cement Siding: A Closer Look at James Hardie®
When it comes to fiber cement siding, James Hardie® is renowned for its superior durability and resistance to various elements, making it our brand of choice. Made from a blend of cement, sand, and cellulose fibers, this siding option offers numerous benefits that make it a preferred choice for many homeowners.
Pros of James Hardie® Fiber Cement Siding:
- Fire Resistance: Unlike vinyl, Hardie® fiber cement siding will not ignite when exposed to direct flame and does not contribute fuel to a fire. This makes it an excellent choice for areas prone to wildfires or for homeowners concerned about fire safety.
- Aesthetics and Appearance: Fiber Cement siding is renowned for its realistic, authentic appearance that mimics wood through textures like cedar. It offers a sophisticated and elegant look that is difficult to achieve with vinyl siding, which often looks artificial.
- Weather Resistance: Hardie® siding is built to withstand extreme weather conditions, including hurricanes, rainstorms, strong winds, UV rays, snow, hail, and freezing temperatures. Its resilience makes it ideal for various climates, ensuring long-lasting protection. Take a look at how heat can effect roofing and siding.
- Pest Defense: Hardie® siding is impervious to pests such as termites and woodpeckers.
- Long-Lasting Color: With James Hardie’s proprietary ColorPlus® Technology, the color is baked onto the siding in multiple coats, creating a strong bond that resists peeling, chipping, and cracking. This results in vibrant, long-lasting color that reduces the need for frequent repainting.
Cons of Fiber Cement Siding:
- Higher Initial Cost: The upfront cost of fiber cement siding is generally higher than that of vinyl siding.
- Installation Complexity: Fiber cement siding is heavier and more challenging to install, often requiring professional installation to ensure proper handling and placement.
- Length: While vinyl siding is available in 16' 8" sections, fiber cement lap siding is limited to 12 feet; this results in a significantly greater number of visible seams.
- Weight: Fiber cement siding is much heavier than vinyl, weighing around 284 pounds for a 100 sq ft area.(For reference, 100 square feet is equivalent to an area that is 10 feet wide by 10 feet high.) This added weight can increase the structural load on the home, potentially requiring additional support and making the installation process more labor-intensive.
- Brittleness: While durable, fiber cement can crack or chip if mishandled during installation or impacted by heavy objects.
The Importance of Proper Installation
Regardless of whether you choose vinyl siding or fiber cement siding, the quality of the installation is paramount to the longevity and performance of the siding. Improper installation can lead to a host of issues, including compromised integrity and reduced lifespan of the siding.
Common Vinyl Siding Installation Issues
- Improper Nailing and Fastening:
- Missing Studs: Nails often miss the structural studs, leading to weak fastening when they penetrate only sheathing or insulation. For maximum stability, fasteners should be driven into the studs and penetrate at least 1-1/4 inches into framing or 3/4 inch beyond wood sheathing.
- Nail Placement and Tension: Nails must be centered in the nailing slots and not driven too tightly. Leave a 1/32-inch gap between the nail head and siding to allow for expansion and contraction, preventing buckling and warping.
- Avoid Insulation-Only Fastening: Never fasten into insulation alone, as it lacks the structural support needed for siding stability
- Lack of Expansion Gaps:
- Thermal Expansion: Vinyl siding expands and contracts with temperature changes. Insufficient gaps at corners, joints, and around windows can cause buckling or warping. Always leave a 1/4-inch gap (3/8 inch in cold weather) to accommodate movement.
- Locking Issues:
- Locking Failure:
A common problem with vinyl siding is when the panels are not securely locked during installation. This can cause the panels to come loose over time, and fixing them can be difficult because they might not align properly again. This issue can lead to gaps and a less effective siding system.
- Moisture Issues:
- Inadequate Flashing: Without proper flashing around windows, doors, and rooflines, water can penetrate behind the siding, leading to mold and structural damage. A weather-resistive barrier is essential to protect against moisture.
- Disconnection of the Last Panel Before the Soffit:
- Improper Securing: The last panel before the soffit frequently becomes disconnected due to improper installation techniques. This happens when utility channels or other necessary trim are not used to secure the panel properly.
- Uneven Appearance:
An uneven or wavy look can result from improper leveling or the use of damaged panels. - J-Channel Installation:
Incorrect J-channel installation around windows and doors can lead to gaps that allow water intrusion, affecting both appearance and integrity.
Common Fiber Cement Siding Installation Issues
- Incorrect Nailing Practices:
- Wrong Nail Type and Size: A common mistake is using the wrong type and size of nails. It is essential to use 6d (2-inch) or 8d (2 1/2-inch) corrosion-resistant nails. Stainless steel nails are preferred because they do not rust, while galvanized nails are recommended only in areas where they are not exposed, such as under siding overlaps.
- Improper Nail Placement: Nails should be placed correctly—not too high, too low, or too close to the edges. Incorrect placement can cause the siding to loosen or crack over time.
- Improper Cutting and Sealing:
- Using inappropriate tools or dull blades can lead to uneven cuts and gaps in James Hardie siding, exposing your home to potential damage. It’s crucial to use the right tools and take accurate measurements for a perfect fit. Additionally, ensure that all cut edges are painted or sealed to prevent moisture infiltration and decay.
- Improper Caulking:
- Many installations fail because of improper caulking around edges and fixtures. Ensure there is a small gap between the siding and metal flashings to allow water to drain away, preventing water damage. Caulking should be applied correctly to allow water to drain away. There should be a small gap between the siding and metal flashings to prevent water from getting trapped behind the siding, which can cause damage over time.
- Insufficient Clearance:
- Siding installed too close to the ground or other surfaces can trap moisture. Ensure there is at least six inches of clearance from the ground and two inches from steps or paths. This helps avoid moisture damage and ensures warranty compliance.
- Visible Nail Heads:
- Exposed nails not only spoil the look but can also compromise the siding’s integrity. A well-done installation should hide nails to maintain a smooth, clean finish.
- Poor Flashing:
- Flashing directs water away from the siding. Incorrectly installed flashing can lead to water damage. Properly installed Z, L, and kickout flashings are crucial for preventing leaks.
- James Hardie siding is durable but can be fragile if mishandled. It should be transported and installed carefully to avoid cracks or chips.
- Inappropriate Storage and Transportation:
- Storage: Siding materials should always be stored flat, off the ground, and under cover. Exposure to rain or moisture before installation can cause warping or damage to the material, leading to future installation issues.
- Transportation: When transporting, ensure that the siding is properly secured and protected from weather elements. Rough handling or exposure to rain during transport can affect the quality and durability of the siding.
- Use of Galvanized Nails in Exposed Areas:
- Use of Galvanized Nails in Exposed Areas:
Ensuring that your siding is installed by experienced professionals who follow best practices can make a significant difference in its performance and longevity. Taking shortcuts during installation can negate many of the benefits that come with high-quality siding products.
Making the Right Choice
When choosing between vinyl siding and fiber cement siding, it’s essential to consider your specific needs, budget, and the environmental conditions of your area, as well as the design and structure of the building/house. While vinyl siding offers affordability and ease of maintenance, fiber cement siding, particularly from James Hardie®, provides unparalleled durability, fire resistance, and an authentic appearance.
For homeowners looking for a long-term investment that enhances both the safety and aesthetic appeal of their home, James Hardie® fiber cement siding is a superior choice. Its ability to withstand fire, moisture, pests, and extreme weather ensures that your home remains protected and beautiful for years to come.
Ultimately, the decision comes down to your priorities and the specific requirements of your home. By weighing the pros and cons of each option, you can make an informed choice that best suits your needs and offers lasting value.
Interested in learning more? Contact us online or call 847.847.2883. We’d be happy to help answer any questions you may have!
