What Is James Hardie?
James Hardie siding is fiber cement — a composite material made from cement, ground sand, and cellulose fiber (wood pulp). The result is a product that looks exactly like wood siding but won't rot, warp, swell, crack, or be eaten by insects.
James Hardie invented fiber cement siding and remains the world's largest manufacturer. In the Pacific Northwest, it's the #1 siding choice for new construction and high-end remodels because it was engineered specifically for high-moisture climates like ours.
Key properties:
• Dimensionally stable — doesn't expand and contract like wood
• Non-combustible — Class A fire rating
• Resists moisture intrusion — no rot, no mold
• Impact-resistant — holds up to hail and flying debris
• 30-year warranty on materials
HardiePlank vs HardiePanel vs HardieShingle
James Hardie makes three primary siding profiles, each suited to different home styles:
HardiePlank Lap Siding:
• The most popular product — horizontal lap siding that mimics cedar
• Available in 5/16" standard and 5/4" thick profiles
• Smooth and wood-grain texture options
• Best for: craftsman, colonial, ranch, contemporary homes
HardiePanel Vertical Siding:
• Vertical large-format panels, often used in board-and-batten style
• Creates a modern, farmhouse, or transitional aesthetic
• Frequently combined with HardiePlank for mixed-texture designs
• Best for: modern farmhouse, contemporary, ADUs, garages
HardieShingle Siding:
• Mimics the look of cedar shake shingles
• Staggered or straight-edge profiles
• Often used as accent on gable ends or specific facades
• Best for: craftsman, cottage, traditional homes
Vikings Exterior installs all three profiles and can combine them for custom design effects.
Why James Hardie in Seattle
Seattle's climate is the ideal environment for James Hardie and the worst environment for wood siding. Here's why James Hardie dominates the Pacific Northwest:
• No rot — Seattle gets 37" of rain per year. Wood siding rots. Fiber cement doesn't.
• No mold — James Hardie doesn't absorb moisture, so mold can't penetrate behind the surface
• Minimal maintenance — unlike cedar, which needs staining every 5–7 years, James Hardie with ColorPlus finish needs essentially zero maintenance
• Moss resistance — fiber cement doesn't provide the organic substrate that moss needs to grow
• Resale value — James Hardie is the expected standard in Seattle's competitive real estate market. It's what buyers expect on premium homes.
Cost of James Hardie Siding in Seattle
James Hardie siding installation in Seattle typically costs $12–$20 per square foot installed, depending on which product, whether you choose pre-primed or ColorPlus, and the condition of your existing sheathing.
For a typical 2,000 sq ft Seattle home with approximately 2,400 sq ft of siding surface:
• James Hardie pre-primed: $28,800–$43,200 installed
• James Hardie ColorPlus: $33,600–$48,000 installed (eliminates painting cost)
These are installed prices including tearoff, disposal, house wrap, trim, and permits.
James Hardie costs more than LP SmartSide or vinyl but less than full wood — and delivers far better long-term ROI in Seattle's climate.
ColorPlus Technology
James Hardie ColorPlus is a factory-applied paint finish baked onto the siding before it ships — not field-painted after installation. The result is a finish that is dramatically more durable than any field-applied paint.
Why ColorPlus is worth the premium:
• Factory conditions produce a perfect, consistent finish impossible to replicate in the field
• The paint penetrates the surface and bonds at a molecular level
• ColorPlus carries a 15-year limited fade and chip warranty
• Field painting (even with premium paint) starts degrading after 7–10 years in Seattle
• ColorPlus typically pays for itself in paint maintenance savings within 10 years
We offer the full ColorPlus palette — over 700 colors — and can help you select the right shade for your home's architecture and neighborhood.
Installation Process
Our James Hardie installation process follows manufacturer requirements exactly — which is how we maintain our certified installer status and can offer full warranty coverage.
Step 1: Full tearoff of existing siding and inspection of sheathing
Step 2: Replace any damaged or rotted sheathing panels
Step 3: Install new house wrap (moisture barrier) per James Hardie specs
Step 4: Install corrosion-resistant flashing at all windows, doors, and transitions
Step 5: Install siding with proper clearances (no direct contact with soil or roofing)
Step 6: Apply caulking with James Hardie-approved, flexible caulk at all joints
Step 7: Prime all cut ends in the field (critical — bare cut ends absorb moisture)
Step 8: Paint or confirm ColorPlus as the finish
Most full-home James Hardie installations in Seattle take 7–14 days depending on home size and scope.