Compare Gentek vinyl siding and LP SmartSide engineered wood siding using manufacturer specifications, ASTM and VSI standards, appearance, durability, moisture management, maintenance, warranties, installation, and local climate considerations.

Vinyl and Engineered Wood Siding Comparison

Gentek Vinyl Siding vs. LP SmartSide: A Positive, Standards-Based Comparison

Gentek vinyl siding and LP SmartSide engineered wood siding can both create an attractive, durable home exterior. They reach that goal through fundamentally different materials, manufacturing processes, installation methods, maintenance requirements, and performance standards.

Gentek is an excellent choice for homeowners who prioritize low maintenance, integrated color, dimensional stability, and resistance to moisture-related decay. LP SmartSide is a strong option for homeowners who want the solid appearance of painted wood, longer individual boards, field-cut versatility, and the ability to repaint the exterior in a different color.

The Most Important Difference

This is not a comparison between two vinyl siding brands. Gentek siding is manufactured from rigid polyvinyl chloride. LP SmartSide is a treated engineered wood product made from wood strands or fibers combined with resins, waxes, and zinc borate through LP’s SmartGuard manufacturing process.

Because the materials are different, they are evaluated under different standards. ASTM D3679 and the VSI Product Certification Program apply to qualifying rigid vinyl siding. They do not apply to LP SmartSide engineered wood siding.

The comparison must remain category-correct:

Gentek should be evaluated using vinyl siding standards, VSI certification, and Gentek specifications. LP SmartSide should be evaluated using its ICC-ES report, APA product report, LP installation instructions, finishing requirements, and engineered wood warranty.

The Short Answer

Gentek vinyl siding is the stronger choice when the homeowner wants an exterior that never requires routine painting, cannot rot from moisture, is relatively forgiving to maintain, and can be replaced or repaired using readily available matching components.

LP SmartSide is the stronger choice when the design calls for long painted boards, wider exposures, a substantial engineered wood appearance, custom field detailing, or the option to repaint the home in a completely different color later.

The honest conclusion:

Neither product is universally better. Gentek reduces long-term maintenance obligations. LP SmartSide offers greater paint and carpentry-style design flexibility. The best choice depends on the homeowner’s tolerance for maintenance, desired appearance, installer expertise, moisture-management details, budget, and long-term ownership plans.

Applicable Standards and Product Documentation

Standard or Report	Gentek Vinyl Siding	LP SmartSide
ASTM D3679	Applicable to qualifying rigid PVC vinyl siding	Not applicable to engineered wood siding
ASTM D5206	Used to test negative wind-load resistance of rigid vinyl siding	Not the primary evaluation method for LP engineered wood siding
ASTM D4756	Industry-recognized installation practice for rigid vinyl siding and soffit	LP installation instructions govern product-specific engineered wood installation
VSI Product Certification	Applies to qualifying vinyl siding products and colors	Does not apply to engineered wood siding
ICC-ES ESR-1301	Not the primary Gentek vinyl siding evaluation report	Provides code-evaluation information for qualifying LP SmartSide products
APA Product Report PR-N124	Not applicable to conventional vinyl siding	Covers qualifying LP SmartSide engineered wood siding products and applications

Using the correct standard matters. Saying LP SmartSide “meets VSI standards” would be misleading because VSI certification is designed for vinyl and other qualifying polymeric siding categories—not treated engineered wood.

Product Construction

Gentek Sequoia Select

Rigid PVC vinyl construction
Nominal .046-inch horizontal panel thickness
Full-roll nailing hem
Exclusive Advantage Lock system
Full 3/4-inch lap projection
Low-gloss cedar-grain texture
Integral color that does not require routine painting
ChromaTrue technology on designated darker colors

LP SmartSide

Treated engineered wood construction
Wood strands or fibers bonded with resins and waxes
Zinc-borate protection through the SmartGuard process
Primed and factory-finished product options
Sixteen-foot lap-siding lengths on qualifying products
Multiple widths and exposures
Cedar-texture, smooth, nickel-gap, panel, and vertical choices
Can be repainted when properly prepared

Published thicknesses should not be compared directly. A .046-inch vinyl panel and a .418-inch engineered wood board are different materials with different structural behavior, weight, attachment methods, moisture response, and installation requirements.

Appearance and Architectural Style

Both products can create an attractive home, but they produce different visual personalities.

Gentek’s Appearance

Gentek Sequoia Select uses a low-gloss cedar-grain texture, deep 3/4-inch projection, and defined shadow lines to create the appearance of traditional wood siding. The collection includes multiple horizontal profiles and a vertical Board and Batten option.

Consistent factory-manufactured appearance
Multiple traditional lap profiles
Low-gloss integrated colors
Coordinated siding, trim, soffit, fascia, and accessories
No field painting required

LP SmartSide’s Appearance

LP SmartSide is thicker and more board-like because it is an engineered wood product. Sixteen-foot lap boards can reduce the number of visible butt joints across broad wall areas. The material can also be field-cut using conventional woodworking tools.

Solid painted-wood appearance
Long boards with fewer seams
Wide exposure options
Custom trim and carpentry-style details
Primed or factory-finished choices
Can be repainted in a different color

Aesthetic advantage:

LP SmartSide usually provides the more convincing painted-board appearance at close range. Gentek provides a consistent, attractive wood-inspired appearance without committing the homeowner to the maintenance cycle of a painted wood-based exterior.

Moisture Resistance and Water Management

Gentek vinyl siding does not absorb water and cannot rot. That is a significant advantage in a Midwest climate with wind-driven rain, snow, humidity, and repeated freeze-thaw cycles. However, vinyl siding is not the home’s primary waterproofing layer. A properly installed water-resistive barrier and flashing system are still essential.

LP SmartSide is treated to resist fungal decay and termite damage, but it remains a wood-based product. Its long-term performance depends on correct clearances, flashing, sealing, painting, caulking, drainage, and ongoing maintenance.

LP’s care instructions require attention to details such as:

Maintaining at least 6 inches of clearance from finished grade in U.S. applications
Keeping sprinklers from directing water onto the siding
Maintaining gutters and roof drainage
Keeping exposed substrate sealed with paint or approved caulk
Maintaining flashing above windows, doors, and horizontal trim
Repairing missing or deteriorated caulk
Repainting before the existing coating fails

Gentek is more forgiving of moisture exposure. LP SmartSide can perform well, but it demands more disciplined water management and maintenance.

Maintenance Comparison

Maintenance Area	Gentek Vinyl Siding	LP SmartSide
Routine painting	Not required	Repainting is eventually required as the coating ages
Caulk inspection	Limited to applicable penetrations and adjoining materials	Important at specified joints, penetrations, trim, and transitions
Exposed cut edges	Does not require field painting	Must be handled and sealed according to LP instructions
Cleaning	Typically cleaned with a garden hose and mild solution	LP recommends low-pressure cleaning and warns against pressure washing
Color changes	A different color generally requires replacing the siding	Can be repainted using a suitable exterior coating

Gentek offers the lower-maintenance ownership experience. LP SmartSide offers greater future color flexibility, but that flexibility comes with inspection, coating, caulking, and repainting responsibilities.

Impact and Hail Performance

LP SmartSide’s engineered wood construction provides a solid impact-resistant exterior. LP states that qualifying SmartSide products use its SmartGuard process for resistance to hail, moisture, fungal decay, and termites.

LP’s published 5/50 limited warranty discussion identifies hail coverage for qualifying damage from hail up to 1.75 inches in diameter when the product is properly installed and maintained, subject to the complete written warranty.

Gentek vinyl siding is also tested for impact resistance as part of the applicable ASTM D3679 product requirements. Sequoia Select’s extra-heavy .046-inch construction can provide greater rigidity than thinner vinyl products, but no siding should be presented as completely hail-proof.

Severe hail can damage vinyl, engineered wood, metal, roofing, windows, and virtually every other exterior material. Compare the written hail coverage and claim remedies—not just a general claim of impact resistance.

Wind Performance

Gentek states that Sequoia Select has been tested for negative wind-load resistance under ASTM D5206 and meets or exceeds the applicable industry standard for wind-load performance.

LP SmartSide wind resistance is evaluated through its product-specific fastening schedules, code reports, wall assemblies, substrate requirements, board dimensions, and fastener penetration. Because LP SmartSide is face-nailed engineered wood, its attachment method is fundamentally different from vinyl siding hung through elongated nail slots.

For either product, verify:

The exact product and profile
The tested design pressure
The approved wall substrate
The required fastener type, spacing, and penetration
Building height and exposure category
Field, edge, and corner-zone requirements
Applicable local building codes
The current manufacturer installation instructions

Wind performance cannot be accurately reduced to “vinyl versus wood.” It is the complete tested and installed wall assembly that matters.

Installation Differences

Installing Gentek Vinyl Siding

Vinyl siding is designed to expand and contract. It is hung through elongated nail slots and should remain free to move laterally. Fasteners must not be driven tightly against the nail hem.

Center fasteners appropriately within nail slots
Do not overdrive fasteners
Provide required clearance inside receiving channels
Fully engage panel locks without stretching panels upward
Follow temperature-specific overlap requirements

Installing LP SmartSide

LP SmartSide installs more like conventional wood siding. Boards are field-cut and face-nailed or blind-nailed according to the applicable product instructions. Proper clearances, joint treatment, flashing, paint, and sealing are essential.

Use the approved corrosion-resistant fasteners
Follow product-specific fastener spacing
Maintain required clearances from grade, roofing, and horizontal surfaces
Provide proper flashing above openings and horizontal trim
Seal exposed substrate according to LP instructions
Use compatible paint and ASTM C920-compliant sealants where specified

LP SmartSide offers greater field-customization potential, but installation errors involving moisture, clearances, paint, or flashing can have more serious consequences.

Warranty Comparison

Gentek states that Sequoia Select is backed by a lifetime limited, non-prorated, transferable warranty with hail protection and lifetime fade coverage, subject to the complete written terms.

LP describes its SmartSide warranty as a 5/50 limited warranty. LP states that it includes five years of 100% labor and material replacement coverage followed by 50 years of prorated material replacement coverage, subject to the written warranty.

Warranty Area	Gentek Sequoia Select	LP SmartSide
Published structure	Lifetime limited, non-prorated, transferable product warranty	Five-year labor and material feature followed by prorated material coverage
Finish coverage	Lifetime fade coverage is identified for Sequoia Select, subject to terms	Primed and ExpertFinish products have different coating considerations and documents
Hail	Hail protection is identified, subject to written limitations	LP identifies qualifying hail coverage up to 1.75-inch hail, subject to terms
Maintenance dependency	Correct installation and ordinary care are required	Installation, coating, caulking, clearance, and maintenance requirements are critical

Do not rank these warranties using the words “lifetime” or “50-year” alone. Review the actual remedies, proration schedule, labor coverage, finish coverage, exclusions, maintenance obligations, and transfer terms.

Cost of Ownership

LP SmartSide commonly involves greater material weight, additional cutting, more detailed fastening, joint treatment, caulking, flashing, and field painting when primed products are selected. Those requirements can increase initial labor and long-term maintenance costs.

Gentek vinyl siding usually installs with lighter panels, requires no field painting, and eliminates future repainting cycles. It may therefore provide a lower total cost of ownership even when a premium .046-inch product is selected.

The correct comparison should include the complete installed system, not merely the per-square material price. Include trim, labor, house wrap, flashing, paint, caulk, equipment, waste, delivery, future repainting, and anticipated maintenance.

Which Product Is the Better Fit?

Gentek May Be the Better Fit When:

You want to avoid routine repainting
Low maintenance is the leading priority
You want a moisture-resistant material that cannot rot
You prefer Sequoia Select’s .046-inch premium construction
Color-coordinated siding and accessories are important
The required colors are stocked locally
Fast delivery and easy replacement access matter

LP SmartSide May Be the Better Fit When:

You want a substantial painted-wood appearance
Sixteen-foot boards fit the architectural design
You want wider exposures or custom field detailing
You want the option to repaint the home later
The installer is experienced with engineered wood
The project can maintain required moisture clearances
You accept periodic inspection, caulking, and repainting

Final Gentek vs. LP SmartSide Comparison

Gentek and LP SmartSide are both credible siding choices, but they solve different homeowner priorities.

LP SmartSide provides the solid appearance, longer boards, field flexibility, and repaintability of an engineered wood exterior. It also requires careful moisture management, proper clearances, compatible coatings, recurring inspections, caulk maintenance, and eventual repainting.

Gentek provides a lighter, low-maintenance exterior that does not absorb water, cannot rot, and never requires routine painting. Premium products such as Sequoia Select add .046-inch construction, a full-roll nail hem, deep projection, secure panel engagement, premium colors, and coordinated accessories.

The best choice depends on whether the homeowner values painted-wood authenticity and future color flexibility more than reduced maintenance, moisture resistance, local availability, and lower long-term upkeep.

Compare Siding Systems With a Local Expert

Suburban Wholesale & Supply helps Quad Cities contractors, builders, and homeowners compare siding based on the complete wall system—not a single marketing claim. Our team can help evaluate material type, profiles, colors, standards, installation requirements, maintenance, warranty coverage, and product availability.

Contact our Davenport team to determine whether a low-maintenance Gentek vinyl siding system or an alternative cladding best fits your project.

Technical References

Product specifications, profiles, colors, code reports, and warranties can change. Confirm current information using manufacturer instructions, applicable building codes, current VSI certification listings for vinyl products, APA and ICC-ES reports for engineered wood, and complete written warranties before specifying or installing either siding system.

Gentek Vinyl Siding vs. LP SmartSide | Expert Guide