Fibre cement under the eave
Hardie® Soffit Panels are 1/4 in. fibre cement soffit, vented or non-vented, in Select Cedarmill® or Smooth, 12, 16 and 24 in. wide, with a primed 4x8 ft. non-vented sheet as well. Vented panels give 5 sq. in. of net free ventilation per lineal foot. Five ColorPlus® colours in Ontario, or primed, and noncombustible under CAN/ULC-S114.
Arctic White
Vented Select Cedarmill®
Vented Select Cedarmill®(5)
Non-Vented Cedarmill®(5)
Vented Smooth(5)
Non-Vented Smooth(5)
Colours shown are approximate representations only and may appear differently on screen than the actual product. Request a physical sample before making your final decision.
Hardie® Soffit Panels are 1/4 in. fibre cement soffit, vented or non-vented, in Select Cedarmill® or Smooth, 12, 16 and 24 in. wide, with a primed 4x8 ft. non-vented sheet as well. Vented panels give 5 sq. in. of net free ventilation per lineal foot. Five ColorPlus® colours in Ontario, or primed, and noncombustible under CAN/ULC-S114.
Hardie Soffit closes the underside of the eave in the same fibre cement as the walls. The panels are a quarter inch thick and come vented or non-vented, each in a Select Cedarmill woodgrain face or a Smooth one, in 12, 16 and 24 inch widths. The 12 and 16 inch panels run 12 feet long and the 24 inch panels 8 feet, and for porch ceilings and wide soffits there is a primed 4 by 8 foot non-vented sheet. The vented panels are perforated with rows of small holes and give 5 square inches of net free ventilation per lineal foot of soffit, the same figure at every width, which is the number to carry into your attic ventilation calculation. James Hardie's guidance is to set the vented section toward the outside edge of the eave, and to remember that an insect screen behind it reduces the net free area.
In ColorPlus the soffit comes in five colours in Ontario: Arctic White, Cobble Stone, Timber Bark, Iron Gray and Midnight Black. Everything is also sold primed. Under CAN/ULC-S114 the panels are noncombustible, with a Flame Spread Rating of 0 and a Smoke Developed Classification of 0 under CAN/ULC-S102, which matters at the eave, the gap James Hardie itself describes as vulnerable to fire and moisture. Soffit is not part of CCMC 12678-R, which covers the siding, but James Hardie's 30-year warranty names Hardie Soffit HZ5 panels and extends to Canada.
Available at Pro Materials in Newmarket, Ontario, supplying contractors, builders, and homeowners across York Region, the GTA, Simcoe County and Durham Region. All products are available on a quote basis; contact us for wholesale pricing and current availability.
Woodgrain face with rows of vent perforations. Set the vented section toward the outside of the eave.
| Length | 12 ft. (12, 16 in.) · 8 ft. (24 in.) |
| Height / Width | 12, 16, 24 in. |
| Thickness | 1/4 in. |
| Coverage | 5 sq. in. net free area per lineal foot |
| ColorPlus® | 5 colours |
| Primed | 12, 16, 24 in. |
| Texture code | TX39 |
Solid woodgrain panel for eaves that do not need intake air, and for porch ceilings.
| Length | 12 ft. (12, 16 in.) · 8 ft. (24, 48 in.) |
| Height / Width | 12, 16, 24 in., 48 in. primed |
| Thickness | 1/4 in. |
| ColorPlus® | 5 colours |
| Primed | 12, 16, 24, 48 in. |
| Texture code | TX30 |
Flat face with rows of vent perforations, for a clean contemporary eave.
| Length | 12 ft. (12, 16 in.) · 8 ft. (24 in.) |
| Height / Width | 12, 16, 24 in. |
| Thickness | 1/4 in. |
| Coverage | 5 sq. in. net free area per lineal foot |
| ColorPlus® | 5 colours |
| Primed | 12, 16, 24 in. |
| Texture code | TX7 |
Solid flat panel. Also offered as a primed 4x8 ft. sheet for wide soffits and porch ceilings.
| Length | 12 ft. (12, 16 in.) · 8 ft. (24, 48 in.) |
| Height / Width | 12, 16, 24 in., 48 in. primed |
| Thickness | 1/4 in. |
| ColorPlus® | 5 colours |
| Primed | 12, 16, 24, 48 in. |
| Texture code | TX6 |
| Width | Length | ColorPlus® (5 colours) | Primed |
|---|---|---|---|
| 12 in. (305 mm) | 12 ft. | All four textures | All four textures |
| 16 in. (406 mm) | 12 ft. | All four textures | All four textures |
| 24 in. (610 mm) | 8 ft. | All four textures | All four textures |
| 48 in. | 8 ft. | Not offered | Non-vented only |
James Hardie dealer system, postal code L3Y.
| Panel width | Pieces |
|---|---|
| 12 in. and 16 in. (12 ft. panels) | Lineal feet of eave ÷ 12, rounded up |
| 24 in. (8 ft. panels) | Lineal feet of eave ÷ 8, rounded up |
From the appendix to the HZ5 Canada Best Practice Guide. Waste is not included.
| Item | What it is for |
|---|---|
| Hardie® Trim boards | For fascia, rake and frieze |
| 4d galvanized common nails or No. 8 ribbed bugle screws | The soffit fasteners for wood and steel framing |
| PVC or metal H moulding, or batten strips | One of the four ways to finish a panel joint |
| Insect screen | Optional behind vents; it reduces the net free area |
| ColorPlus® touch-up kit and edge coater | Colour matched touch-up for nail heads and cut edges |
Order quantities and lead times may vary. Contact us for availability.
Framing: wood or 20 ga to 16 ga steel, nominal 2x4 members at a maximum 610 mm (24 in.) o.c., with the long side of the panel across the rafters or joists
Every panel edge must be supported by framing. Eave framing needs a subfascia, blocking and/or a ledger; rake overhangs need 2x lookouts at a maximum 610 mm o.c.
Wood framing: minimum 4d common nails at 200 mm (8 in.) o.c. at edges and intermediate framing. Steel: No. 8-18 x 25 mm ribbed bugle screws at 150 mm (6 in.) o.c.
Fasteners 9.5 mm (3/8 in.) from panel edges. Stay 50 mm (2 in.) from corners on soffit wider than 305 mm (12 in.), and 25 mm (1 in.) on soffit 305 mm (12 in.) wide or less
Joints: panel ends in moderate contact, a caulked 3 mm (1/8 in.) gap, a batten strip, or a PVC or metal H moulding
Eaves longer than 3,658 mm (12 ft.): trim the first panel so its end lands in the middle of a nailer
Hip corners: 45° cuts measured from the factory end, nailed from the cut end toward the factory end
Vented panels give 5 sq. in. of net free area per lineal foot. Set the vented section toward the outside of the eave, and remember that an insect screen reduces it
Keep at least 25 mm (1 in.) between gutter end caps and the siding and trim
James Hardie's installation and wind load information covers buildings up to 25.9 m (85 ft.) mean roof height
Fasteners must be corrosion resistant. Hot-dipped galvanized is recommended, and stainless steel near the ocean, large bodies of water or in very humid conditions
Drive fasteners perpendicular and snug. Do not over drive, under drive or angle them, and do not use aluminum fasteners, staples to the wall, or clipped head nails
James Hardie's installation videos are filmed for the United States. Where a video and the Canadian HZ5® instructions differ, the Canadian instructions govern
How to install HardieSoffit panels (James Hardie)
How to install drip edge flashing before roof installation (James Hardie)
How to install drip edge flashing after roof installation (James Hardie)
How to ensure correct gutter placement on fascia (James Hardie)
Each one opens the section of our guides that answers it for Hardie® Soffit Panels and the products beside it on the shelf.
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