Not all vinyl siding is built the same. Two panels may look similar from across a showroom, yet differ considerably in thickness, rigidity, nail-hem design, panel projection, locking system, color technology and warranty protection.

These differences become more noticeable after the siding reaches the jobsite. A lighter panel may feel less substantial, show wall irregularities more readily or lack the deep profile that gives an exterior convincing architectural dimension. The differences may become even more important after years of Midwest temperature changes, wind, sunlight and moisture.

Gentek Sequoia Select is an ultra-premium vinyl siding line with a nominal .046-inch thickness in its horizontal profiles. Its performance story goes beyond one measurement. Gentek combines the heavier panel with a full-roll nailing hem, Advantage Lock system, full 3/4-inch lap height, low-gloss cedar-grain texture and standardized wind-load testing.

Gentek Sequoia Select Manufacturer Specifications

Gentek product specifications may differ by profile and may change over time. Confirm the current Gentek Siding Product Directory and written warranty before presenting specifications to a customer.

1. The .046-Inch Panel Provides Greater Body and Rigidity

Vinyl siding thickness is commonly expressed as a nominal measurement. Sequoia Select’s horizontal profiles have a nominal thickness of .046 inch, placing the product above many thinner, entry-level siding panels.

A heavier panel can feel more substantial during handling and installation. It can also help produce straighter-looking courses when installed over a properly prepared wall.

Rigidity matters because siding is expected to maintain orderly wall lines while allowing for expansion and contraction. A product with more body may be less visually delicate than a thinner panel, particularly across broad, highly visible elevations.

2. The Full-Roll Nail Hem Strengthens Wall Attachment

The nail hem is where the panel connects to the wall. Gentek uses a full-roll nailing hem on Sequoia Select to provide a reinforced fastening area.

This is an important distinction when comparing a premium panel with a basic siding product. The siding system depends on secure wall attachment, especially when it is exposed to wind pressure and changing temperatures.

Reinforcement does not eliminate the installer’s responsibility. Fasteners must be properly selected, positioned and spaced. They must hold the panel securely without restricting its natural movement.

3. The Advantage Lock System Improves Panel Engagement

A siding wall is made from individual courses that must connect correctly. Gentek’s Advantage Lock system is designed to secure adjoining panels while increasing rigidity and stability.

Strong panel engagement helps the courses behave as a coordinated system. For the contractor, a clear, positive lock also makes it easier to confirm that each course is seated before moving up the wall.

Every course should be fully engaged without being stretched or pulled excessively tight. A premium lock cannot compensate for panels that have only been partially connected.

4. Its Deeper Profile Produces Better Shadow Lines

Performance is not limited to weather resistance. For homeowners, the appearance of the finished wall is equally important.

Sequoia Select’s horizontal profiles feature a full 3/4-inch lap height. This deeper projection creates more noticeable shadow lines than flatter panels. As sunlight moves across the elevation, those shadows add definition and help the siding resemble traditional wood cladding.

The low-gloss cedar-grain surface supports that effect. Instead of producing an overly reflective plastic appearance, the restrained finish gives the wall a softer and more natural character.

5. Its Performance Story Is Supported by ASTM Standards

ASTM standards create a consistent framework for evaluating vinyl siding. They help contractors move beyond vague claims such as “strong,” “durable” or “weather-resistant.”

6. VSI Installation Principles Protect the Product’s Performance

The Vinyl Siding Institute has long supported product certification and professional installer education. Recognized VSI installation principles emphasize that vinyl siding must be secured while remaining free to expand and contract.

A professional installation should include the following practices:

• Inspect and prepare a flat, sound substrate before installing siding.
• Coordinate the siding with a correctly installed weather-resistant barrier.
• Flash windows, doors, penetrations and roof-to-wall transitions properly.
• Install a straight and level starter strip.
• Position fasteners in the appropriate portion of the nail slots.
• Avoid driving fasteners tightly against the panel.
• Maintain the manufacturer-required clearances at trim and accessories.
• Engage each panel completely without stretching it upward.
• Check course alignment frequently across the entire elevation.
• Follow Gentek’s current instructions and applicable local building codes.

Restricting panel movement is one of the fastest ways to compromise a vinyl siding installation. Overtightened fasteners and insufficient clearance may contribute to buckling or distortion as temperatures change.

Gentek .046 Siding Compared With Entry-Level Vinyl Siding

Why These Differences Matter in the Quad Cities

Homes in Davenport, Bettendorf, Moline, East Moline and Rock Island experience cold winters, hot and humid summers, strong winds and rapid temperature swings. Vinyl siding must move as temperatures change while remaining securely attached to the wall.

A heavier panel, reinforced nail hem and secure locking system provide contractors with a strong foundation. Correct clearances, fastening and water-management details allow those manufactured features to work as intended.

The practical lesson is simple: Midwest performance comes from pairing the right product with an installer who understands building science and vinyl siding movement.

How Contractors Should Present the Upgrade

Contractors do not need to overwhelm homeowners with technical terminology. Translate each product feature into a visible or practical benefit.

• Show the panel thickness: Let the homeowner handle a .046-inch sample beside a thinner product.
• Point out the panel projection: Explain how the deeper lap creates more noticeable shadow lines.
• Demonstrate the lock: Show how the courses engage instead of only talking about strength.
• Explain standardized testing: Reference the applicable ASTM test without turning a laboratory result into an unsupported storm guarantee.
• Connect product and installation: Make it clear that premium materials reach their potential only when installed correctly.
• Review the written warranty: Never promise coverage that is not stated in the current Gentek warranty.

Is Gentek .046 Vinyl Siding Worth the Upgrade?

For homeowners comparing Gentek Sequoia Select with thinner, entry-level vinyl siding, the upgrade has a strong technical and aesthetic case.

Its .046-inch nominal thickness, full-roll nail hem, Advantage Lock system, deep 3/4-inch lap and low-gloss cedar-grain finish create a more substantial product and a more dimensional exterior.

ASTM standards provide a framework for evaluating the product, while VSI installation principles and Gentek’s instructions guide the contractor toward a successful installation.

The honest conclusion is not that Gentek automatically beats every siding product made by every competing brand. It is that Sequoia Select offers clear, documented advantages over many thinner products—and gives professional contractors a premium siding system they can explain, demonstrate and install with confidence.