Allura Panel Siding 5/16″ x 4' x 12' Traditional Cedar

Allura’s fiber cement panel siding delivers Class A fire protection in 4’ x 12’ sheets weighing approximately 110 pounds each. The panels offer a 30-year transferable warranty while resisting moisture, rot, termites, and fungal decay. Contractors get panels that perform at 0 flame spread and 0 smoke spread (ASTM E84) — critical specs for Montana’s increasing wildfire zones.

The traditional cedar texture mimics real wood grain through deep embossing, but without cedar’s maintenance headaches. At 2.3 pounds per square foot, these panels demand proper crew planning but deliver genuine fire safety that vinyl and engineered wood can’t match.

Fire Protection That Actually Matters

The non-combustible rating per ASTM E136 puts these panels in a different league from combustible alternatives. CalFire WUI Listing 8170-2180:0501 confirms their suitability for wildfire-prone areas. Those zeros on flame spread and smoke spread aren’t marketing fluff — they’re measured performance under ASTM E84 testing.

Unlike LP SmartSide’s engineered wood construction, Allura’s fiber cement composition is fundamentally non-combustible. That distinction matters when homeowners face insurance renewals or building in Montana’s expanding WUI zones.

Fire Safety Specification	Value
Fire Rating	Class A (Non-combustible per ASTM E136)
Flame Spread	0 (ASTM E84)
Smoke Spread	0 (ASTM E84)
CalFire WUI Listing	8170-2180:0501
Additional Certifications	Texas Department of Insurance Report (EC-16), Florida Building Code Approval (FL20742-R6)

Installation Reality Check

Each panel weighs approximately 110 pounds. That’s a two or three-person carry for 12-foot panels. Contractors consistently mention the weight as a primary installation challenge. Plan accordingly.

Fastening requires galvanized siding nails or screws with 1-1/4 inch penetration into framing — 6 inches on center along edges, 12 inches on center in the field. Critical clearances include 6 inches from ground grade, 2 inches from rooflines or decks, and 1/8 to 1/4 inch gaps for caulk at trim.

The silica dust generated when cutting these panels dry poses serious health risks. Wet cutting or proper dust collection isn’t optional — it’s mandatory for crew safety.

The Cedar Comparison

Real cedar rots, attracts termites, and needs regular staining. Allura’s fiber cement delivers cedar aesthetics with superior fire resistance and no rot. The deep texture and 30-year transferable warranty distinguish it from other fiber cement options.

The panels earn high marks for authentic appearance and longevity. Compatible trim comes in 5/4 and 4/4 thicknesses, with Spectrum Touch-Up Paint available for field repairs.

Physical Specifications	Value
Panel Dimensions	5/16″ x 4’ x 12’
Weight	2.3 lbs per square foot (~110 lbs per panel)
Material Composition	Portland cement, sand, and cellulose fibers
Warranty	30-year limited warranty (transferable)
Warranty Coverage	Product defects, rot, hail damage, and fire resistance

The panels carry NGBS Green Certification and work for LEED projects — relevant for contractors chasing green building credits.

Bottom Line

Allura’s fiber cement panels deliver genuine Class A fire protection with non-combustible construction that LP SmartSide can’t match. The weight demands crew planning, and dry cutting requires serious dust protection. But for contractors who need authentic cedar appearance with measurable fire safety, these panels earn their place on Montana jobsites.

The 30-year transferable warranty backs up the performance claims. At 2.3 pounds per square foot with CalFire WUI certification, you’re getting panels engineered for real wildfire protection, not just code compliance.

FAQ

How much do these panels actually weigh? Each 4’ x 12’ panel weighs approximately 110 pounds, or 2.3 pounds per square foot. Plan for a two or three-person crew for safe handling.

What makes these different from James Hardie panels? Allura offers a 30-year transferable warranty and deep texture that contractors often note as distinguishing features. Both are quality fiber cement products with comparable performance.

Can one person handle installation? No. The panels require 2-3 people for safe handling, especially the 12-foot lengths. This isn’t a solo installation job.

What about the dust during cutting? Dangerous silica dust requires wet cutting or proper dust collection equipment. No exceptions. Protect your crew.

Do these panels really resist termites? Yes. The fiber cement composition of Portland cement, sand, and cellulose fibers is termite and wood-boring insect resistant.