Siding samples are excellent at sitting flat on a showroom table. Houses are less cooperative. They have windows, hose bibs, roof intersections, decks, meters, vents, and corners that expect the installer to have read the rest of the manual.
The useful material difference
Hardie products are fibre cement boards and panels. They are heavier, cut differently, and depend on product-specific fastening, flashing, joint, clearance, and finishing details. James Hardie's Canadian installation resources direct installers to the current instructions for the exact product.
Vinyl siding is a lightweight interlocking cladding designed to move with temperature. The Polymeric Exterior Products Association's Canadian code guide highlights certification, fastener location, spacing, and attachment requirements. Nailing it tight because movement feels suspicious is a reliable way to make the wall look suspicious later.
Swipe to compare
| Decision | Fibre cement | Vinyl |
|---|---|---|
| Look | Thicker painted-board character | Broad colour and profile range |
| Installation | Heavier, dust-controlled cutting and detailed clearances | Lighter, movement-sensitive fastening and trim |
| Upkeep | Inspect finish, joints, clearances, and damage | Wash and inspect panels, locks, trim, and impact damage |
| Budget | Usually higher labour and material scope | Usually lower installed scope |
Compare the wall, not just the plank
- Water-resistive barrier and drainage path behind the cladding.
- Head, sill, roof-wall, deck, meter, vent, and penetration flashing.
- Soffit, fascia, window and door trim, corners, and starter details.
- Existing sheathing repairs and exterior insulation opportunities.
- Product, finish, and labour warranties, including maintenance duties.
Ask both bidders to price the same complete elevation and repair assumptions. Then compare appearance, detailing, exposure, upkeep, and total scope. Existing storm damage belongs in the wind-damaged siding guide; a cold-weather start belongs in the winter siding guide. If the project touches eaves or the roof edge, read the attic ventilation guide while everything is accessible.
