TimberTech Landmark Collection delivers advanced PVC construction that stays up to 30°F cooler than competitive deck boards — and that matters when Montana summer deck surfaces hit 140°F in direct sun. The 100% synthetic core contains no wood fibers, which means no moisture absorption, no rot, and no freeze-thaw damage that destroys composite decking in this climate.
Skip it if you’re chasing the cheapest upfront price. At approximately 60% recycled content versus Trex’s 95%, it’s not winning any environmental awards either. This deck targets contractors building in wildfire zones who need Class A fire ratings and WUI compliance without compromising on heat performance.
Fire Safety and Temperature Performance
The Class A Flame Spread Rating and Ignition-Resistant designation make Landmark suitable for Montana’s expanding wildfire interface zones. More homeowners face insurance requirements for fire-resistant materials, and this PVC formulation delivers documented compliance.
The heat management technology actually works. StayPower™ Technology keeps boards up to 30°F cooler than competitive products, achieved through the matte finish with wire-brushed texture that reduces solar absorption. Dark colors still get hot — physics hasn’t been defeated — but the temperature difference between Landmark and standard composites is measurable with an infrared thermometer.
Slip resistance testing shows 40% better traction than leading competitors in both wet and dry conditions. That wire-brushed texture serves double duty — reducing heat absorption while increasing grip for Montana’s freeze-thaw cycles and sudden summer thunderstorms.
| Specification | Value |
|---|---|
| Fire Rating | Class A Flame Spread, WUI Compliant, Ignition Resistant |
| Heat Reduction | Up to 30°F cooler than competitive composite |
| Slip Resistance | 40% better than leading competitor (wet/dry) |
| Material | Advanced PVC (capped polymer), 100% synthetic core |
| Recycled Content | Approximately 60% (post-construction vinyl scrap) |
Installation Requirements and Compatibility
Landmark demands proper joist spacing — 16 inches on-center for perpendicular installation, 12 inches for diagonal. Don’t push these limits. PVC’s thermal movement characteristics mean proper support matters more than with wood-plastic composites.
The product works with four fastening systems: CONCEALoc® for grooved boards, SIDELoc™ for square-shoulder profiles, Cortex® plug system, or TOPLoc® color-matched face fasteners. The hidden fastener systems handle thermal expansion better than face screwing, but cost more in labor and materials.
| Board Dimensions | Specifications |
|---|---|
| Deck Board Width | 5.5 inches (actual) |
| Thickness | 1 inch (actual) |
| Square Shoulder Lengths | 16 ft, 20 ft |
| Grooved Lengths | 12 ft, 16 ft, 20 ft |
| Fascia Board | 11.75” × 0.5” × 12 ft |
| Riser Board | 7.25” × 0.75” × 12 ft |
Professional installers can heat-bend these boards for curved designs — not a DIY project, but useful for complex deck layouts. The PVC formulation allows controlled heating and forming that composite boards can’t match.
Real-World Performance
Customer reviews average 3.3 stars from 12 reviews on Lowe’s — lower than expected for a premium product. Common complaints include high price and the fact that surfaces still get hot in extreme direct sun. No decking material defeats the sun entirely, but buyers expected more from the premium pricing.
The weight makes this a two-person installation job according to reviews. Plan accordingly for labor costs. The density that provides durability also means these boards don’t handle like traditional lumber.
Warranty coverage includes Limited Lifetime Product Warranty and 50-Year Fade & Stain Limited Warranty. The labor warranty only applies when installed by TimberTech-certified contractors — factor this into your installer selection if warranty coverage matters.
FAQ
Q: How much cooler does Landmark actually stay compared to regular composite decking? A: Testing shows up to 30°F cooler than competitive deck boards. The matte finish with wire-brushed texture reduces heat absorption, though dark colors still get hot in direct sun.
Q: What fire ratings does Landmark Collection carry? A: Class A Flame Spread Rating, WUI (Wildland-Urban Interface) Compliance, and Ignition-Resistant designation. These certifications meet most insurance and building code requirements for fire-prone areas.
Q: Can Landmark boards be installed at 24 inches on-center like regular decking? A: No. Maximum joist spacing is 16 inches on-center for perpendicular installation or 12 inches for diagonal installation. Exceeding these specifications voids the warranty.
Q: What’s the actual recycled content in Landmark boards? A: Approximately 60% recycled material from post-construction vinyl scrap. This is lower than many composite alternatives but typical for PVC decking products.
Q: Which fastening system works best for Montana’s temperature swings? A: Hidden fastener systems (CONCEALoc® for grooved boards or SIDELoc™ for square-shoulder) handle thermal movement better than face screwing, though they cost more in materials and installation time.
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