James Hardie vs LP SmartSide: Which Siding Is the Better Fit for Your Colorado Home?
If you're replacing the siding on your Colorado home and have narrowed it down to James Hardie fiber cement and LP SmartSide engineered wood, you're already looking at two of the strongest options on the market. Both are significant upgrades over standard vinyl, and both are worth consideration. The right choice depends on your specific priorities: fire risk, climate exposure, budget, and how you want the finished product to look and feel.
What Each Product Is Made Of
The materials are fundamentally different, and that matters for how each product performs.
James Hardie fiber cement siding is made from a blend of cement, sand, and cellulose fibers. It's a rigid, non-combustible material that won't burn, rot, or feed insects. Because it's manufactured in regional formulations, the Colorado product line is made to handle freeze-thaw cycles and low humidity.
LP SmartSide is engineered wood, made from wood strands that are treated with a resin binder and coated with a zinc borate compound to resist fungal decay and insects. It looks and feels closer to natural wood than fiber cement does, and it's lighter and easier to cut and install.
How Colorado's Climate Factors In
Colorado's Front Range is tough on siding. You get intense UV exposure, dry winters, hail, and in many areas, significant wildfire risk. Those conditions narrow the comparison.
On fire resistance, James Hardie has a clear advantage. Fiber cement is non-combustible, which is why it's often required in wildland-urban interface zones and in fire-prone areas. LP SmartSide is treated for moisture and pest resistance, but it is still a wood-based product and will burn.
On hail, both products perform well compared to vinyl or wood lap siding.
On temperature swings and UV exposure, both products hold up reasonably well, though fiber cement's inorganic composition makes it less prone to expansion and contraction over time.
Appearance and Style Options
This is where LP SmartSide often wins over homeowners who want a more traditional or natural wood aesthetic. The texture of engineered wood looks and reads as wood in a way that fiber cement, despite its improvements, doesn't always replicate. If the goal is a cedar shake or board-and-batten look that feels warm and organic, LP SmartSide can be the more convincing choice.
James Hardie has invested heavily in its finish options, including the factory-applied ColorPlus Technology line, which provides a durable baked-on finish that holds color longer than field-painted siding. The aesthetic is clean and contemporary, and the product line is broad enough to cover most architectural styles.
Installation
Fiber cement is heavier and requires more labor to install. That typically means a higher installation cost, even if the material prices are comparable. LP SmartSide is lighter, cuts more easily, and can be faster to work with on complex profiles or detailed trim work. We're certified to install both - a James Hardie Preferred Contractor and an LP SmartSide Gold Certified Contractor - so we can give you a straight comparison based on your home rather than a pitch for whichever product we happen to carry.
Making the Call
For most Colorado homeowners on the Front Range, James Hardie fiber cement is the more defensible long-term choice, primarily because of its fire resistance and impact durability. If you're in or near a fire-prone area, that factor alone often settles the decision. If fire risk is low on your list and you want a product that looks closer to natural wood and installs efficiently, LP SmartSide is a legitimate and well-made alternative.
Both products carry strong warranties, and both will outperform vinyl or untreated wood in Colorado's climate. The decision comes down to what you're optimizing for. Knowing that before you talk to a contractor will help you get a more productive conversation and a result you're confident in. If you're ready to start comparing options for your home, our siding services page and James Hardie fiber cement siding page cover how we approach both products on the Front Range.
Frequently Asked Questions
Is James Hardie worth the higher cost compared to LP SmartSide?
For many Colorado homeowners, yes. The non-combustible material and higher impact resistance carry real value, particularly in areas with wildfire exposure or frequent hail. Whether the premium is worth it depends on your location, your insurance situation, and how long you plan to stay in the home.
Can LP SmartSide hold up in Colorado's dry climate?
It generally performs well in dry climates. The engineered wood substrate is treated to resist moisture and fungal decay, and Colorado's low humidity reduces some of the moisture-related risks associated with wood products. That said, keeping the paint or finish intact is important for long-term protection.
Which product is better for a historic or traditional-looking home?
LP SmartSide tends to read more naturally as wood, which can be an advantage on homes where a traditional or craftsman aesthetic is important. James Hardie offers a wide range of profiles and textures, including products designed to mimic wood grain, but the look isn't identical.
How long does each product last?
Both products carry strong warranties. James Hardie offers a 30-year non-prorated, transferable limited warranty on its fiber cement substrate, plus a 15-year ColorPlus finish warranty. LP SmartSide offers a 5/50 limited warranty: 100% material and labor replacement for the first 5 years, then prorated material coverage through year 50, plus hail damage coverage up to 1.75". Both warranties have meaningful exclusions and installation requirements, so the installer matters as much as the product.