Both LP SmartSide and James Hardie represent the premium tier of siding for Calgary homes — stepping up from vinyl when you want better performance, a more authentic look, and longer-term durability. They’re the two products we most often compare side-by-side for Calgary homeowners doing full re-sides or upgrading after hail damage.
Here’s the comprehensive comparison.
Product Overview
James Hardie Fiber Cement
James Hardie makes siding from Portland cement, sand, and cellulose fiber. It’s a mineral-based composite — not wood at all. This gives it unique properties:
- Non-combustible (doesn’t burn)
- Dimensionally stable (doesn’t expand/contract significantly with temperature)
- Immune to rot, insects, and moisture absorption when properly sealed
- Heavy (~5 lbs/sq ft)
- Requires specialized tools for cutting and installation
LP SmartSide Engineered Wood
LP SmartSide starts with wood fiber (strand board technology) treated with a zinc borate preservative system and covered with a resin-saturated paper overlay. It’s wood-based, treated to overcome wood’s natural vulnerabilities.
- Combustible (wood-based material, though treated)
- Slightly thermally dimensional — moves a bit more than fiber cement
- Treated to resist moisture, rot, and insects
- Lighter (~1.5 lbs/sq ft)
- Installs with standard woodworking tools
Head-to-Head Comparison
| Feature | LP SmartSide | James Hardie |
|---|---|---|
| Material type | Engineered wood | Fiber cement |
| Installed cost (avg. Calgary bungalow) | $16,000–$26,000 | $18,000–$30,000 |
| Hail resistance | Good | Excellent (Class 4) |
| Fire resistance | Moderate (combustible) | Excellent (Class A) |
| Thermal expansion | Low–Moderate | Very low |
| Weight | Light (~1.5 lbs/sq ft) | Heavy (~5 lbs/sq ft) |
| Installation complexity | Moderate | High (specialized tools) |
| Manufacturer warranty | 50 years (substrate) | 30 years |
| Paint warranty | N/A (field painted) | 15 years (ColorPlus) |
| Wood look authenticity | Excellent | Very good |
| Maintenance | Low (periodic painting) | Low–Medium |
Calgary-Specific Performance Factors
Hail Season (May–September)
James Hardie has a documented Class 4 impact resistance rating — the highest available under the IBHS standard. This is relevant for Calgary’s hail corridor, particularly NE and SE communities that see repeated storm events.
LP SmartSide performs well in impact scenarios — the engineered wood composite tends to dent slightly rather than cracking. However, it does not carry a universal Class 4 IBHS certification in the way Hardie products do.
Edge: James Hardie for documented, warranted impact resistance.
Chinook Thermal Cycling
James Hardie’s cement-based composition is highly dimensionally stable — it barely moves through Calgary’s extreme temperature swings. This means no expansion gap concerns, no thermal buckling, and consistent panel appearance through decades of chinook cycles.
LP SmartSide has a lower expansion coefficient than vinyl but is still a wood-based product that moves somewhat more than cement. Proper installation with appropriate expansion gaps manages this effectively.
Edge: James Hardie for dimensional stability in chinook-cycle climate.
UV at Altitude
Both products handle Calgary’s elevated UV well. James Hardie ColorPlus is a factory-baked finish specifically tested for UV resistance. LP SmartSide requires field painting with quality UV-stable exterior paint — the result is excellent if a quality paint system is used, but is more dependent on the paint product and application quality.
Edge: James Hardie ColorPlus for UV resistance consistency.
Wood Aesthetic Authenticity
LP SmartSide wins here. It is wood-based and accepts paint the way real wood does — the texture, the grain, and the feel are convincingly wood-like. Up close, it is more difficult to distinguish from real painted cedar than fiber cement, which has a slightly different density and feel.
Edge: LP SmartSide for wood authenticity.
Installation and Project Timeline
LP SmartSide is installed by crews with standard woodworking skills and tools. James Hardie requires specialized crews with fiber cement training, proper shears or blades, and dust collection equipment. This makes:
- Hardie projects take 20–30% longer
- Hardie labor costs higher
- LP SmartSide easier to schedule and install
Edge: LP SmartSide for installation simplicity and timeline.
Scenarios Where Each Makes the Better Choice
Choose James Hardie When:
- Your home is in a high-risk hail corridor (NE or SE Calgary communities)
- Fire resistance is a priority (urban-wildfire interface, insurance requirements)
- You want documented Class 4 impact resistance for potential insurance premium savings
- Long-term dimensional stability with zero maintenance movement is a priority
- You want the ColorPlus factory finish and 15-year paint warranty
Choose LP SmartSide When:
- Wood look and feel authenticity is the top priority
- Budget has a ceiling and you want premium performance at slightly lower cost
- You want complete freedom in color choice including custom colors
- Your contractor has stronger experience with wood-based products
- You prefer the lighter, easier-to-handle installation process
Can You Mix Both?
Yes — some of the best Calgary exteriors use both products strategically. James Hardie for the main cladding (capitalizing on hail resistance) and LP SmartSide for trim boards or accent features (capitalizing on authentic wood appearance).
King’s Land Siding installs both products and can give you an objective recommendation for your specific home, neighborhood, and priorities. Call (403) 555-0190 or request your free estimate online.
