Allura Spectrum Pre-Finished Fiber Cement Siding Line

Factory pre-finished fiber cement siding that eliminates on-site painting. The Allura Spectrum system includes lap siding, shake panels, and panel siding, all sharing the same 25-color palette and machine-applied finish with 15-year paint warranty.

The Pre-Finishing Advantage

Allura Spectrum delivers up to twice the durability compared to on-site painted fiber-cement. The difference comes down to controlled factory conditions versus jobsite variables. Machine-coating in a controlled environment with built-in primer/sealer beats brush-and-roller work every time.

For Montana contractors racing to close in projects before October freeze, the significantly shorter installation schedule changes project economics. No waiting for paint-friendly weather windows. No scheduling paint crews around rain forecasts. No callbacks for touch-ups after spring’s freeze-thaw cycles reveal coating failures.

The 15-year paint finish guarantee backs up the durability claims, compared to standard field-applied paint warranties. With an expected lifespan of 50-100 years for the fiber cement substrate and a 30-year limited warranty on the product base, contractors can sell long-term value with confidence.

Product Specifications Across the Line

The Spectrum system maintains consistency across product types:

Product Type	Dimensions	Thickness	Exposure/Coverage
Lap Siding	12’ lengths, 5-1/4” to 8-1/4” widths	5/16”	Full board width
Shake Panels	16” x 48”	1/4” or 5/16”	6” or 7”
Panel Siding	4’ x 8’/9’/10’/12’	5/16”	Full panel

Both Traditional Cedar-grain and Smooth finishes are available, letting contractors match existing textures or create contemporary looks. The standard 12-foot lap siding lengths reduce butt joints on long walls — fewer seams mean fewer potential failure points.

Shake panels offer straight, staggered, half-round, and octagon edge profiles, providing design flexibility without sacrificing the pre-finished advantage. The shakes work equally well for small accent facades or full-wall applications.

Color System Integration

The Spectrum palette’s 25 solid colors simplify design coordination. Available colors include Alabaster, Nickel, Carbon Black, Biscayne Blue, Wicker Rocker, Crimson Red, Snow White, and Dover Gray — a mix spanning traditional to contemporary preferences.

Color matching extends across lap, shake, panel, and trim products. Contractors don’t need to worry about batch variations between siding types or explaining why the shake accents don’t quite match the lap siding. The system ensures consistent color confidence across all product configurations.

The factory-applied finish includes built-in primer/sealer, addressing Montana’s moisture challenges from day one. Field-painted fiber cement often fails at the primer level when applicators rush through prep work. Spectrum’s controlled application eliminates that variable.

The math favors pre-finishing for professional contractors. Eliminating painting labor, avoiding weather delays, and reducing callbacks adds up quickly. With that 15-year paint warranty backing the system, Spectrum positions itself as the practical choice for builders who understand that installation efficiency drives profitability as much as material cost.

Frequently Asked Questions

Q: What sizes does Allura Spectrum lap siding come in?

Allura Spectrum lap siding comes in 12-foot lengths with widths ranging from 5-1/4” to 8-1/4”. The boards are 5/16” thick and available in both Traditional Cedar-grain and Smooth finishes.

Q: How long does the factory paint finish last on Allura Spectrum siding?

Allura Spectrum’s factory-applied paint finish comes with a 15-year guarantee, which is up to twice as durable as on-site painted fiber-cement. The fiber cement substrate itself carries a 30-year limited warranty with an expected lifespan of 50-100 years.

Q: What colors are available in the Allura Spectrum system?

The Allura Spectrum palette includes 25 solid colors, with options like Alabaster, Nickel, Carbon Black, Biscayne Blue, Wicker Rocker, Crimson Red, Snow White, and Dover Gray. These colors are consistent across lap siding, shake panels, and panel siding products.

Q: What shake profiles does Allura offer in the Spectrum line?

Allura Spectrum shakes come in 16” x 48” panels with straight, staggered, half-round, and octagon edge profiles. The shakes are available in 1/4” or 5/16” thickness with either 6” or 7” exposure options.

Q: How does Allura Spectrum save installation time compared to unfinished fiber cement?

Allura Spectrum eliminates on-site painting entirely, significantly shortening installation schedules since contractors don’t need to wait for paint-friendly weather or schedule separate paint crews. The factory-applied finish includes built-in primer/sealer applied in controlled conditions, reducing callbacks for coating failures.

Q: What panel siding sizes does Allura Spectrum offer?

Allura Spectrum panel siding comes in 4-foot widths with lengths of 8, 9, 10, or 12 feet, all at 5/16” thickness. Like the lap siding and shakes, panels are available in the same 25-color palette with matching factory finish.