Landmark

Landmark makes architectural asphalt shingles designed for residential roofing, suitable for both new construction and re-roofing projects across a wide range of climates including high-wind and fire-prone areas. These aren’t budget three-tabs — they’re dual-layer laminated shingles with fiberglass-based asphalt and ceramic-coated granules that actually hold up when Montana throws its worst at your roof.

Wind Performance That Matters

The base warranty covers 110 mph winds, but you can upgrade that to 130 mph or 160 mph with specific CertainTeed starter and ridge products. That upgrade path makes sense for contractors working near the Rocky Mountain Front where chinook gusts regularly exceed standard ratings. The NailTrak system provides three clearly defined nail lines with a wider nailing area — crucial when your crew’s fighting wind on a steep pitch in September.

Here’s what the wind ratings actually mean for Montana installations:

Wind Rating	Installation Requirements	Best For
110 mph	Standard installation	Base warranty coverage
130 mph	Specific CertainTeed starter and ridge products	High-wind zones
160 mph	Specific CertainTeed starter and ridge products	Extreme wind exposure

The QuadraBond system uses four-point adhesive bonding between shingle layers, while CertaSeal provides a high-grade polymer sealant that locks shingle edges. Both technologies work together to prevent wind uplift — the number one cause of shingle failure in high-wind areas.

Weight and Impact Specs

These shingles weigh between 219-240 pounds per square depending on regional manufacturing. That’s heavy enough to resist uplift but not so heavy it overloads older roof structures. The weight variation comes from different manufacturing plants — not quality differences.

Impact resistance varies by specific product line:

• Landmark standard: UL 2218 Class 3 in certain versions/regions
• Landmark Life variants: UL 2218 Class 3 in some regions
• Hip/Ridge accessories: UL 2218 Class 4

Class 3 handles most Montana hail events. Class 4 (available in ridge accessories) survives 2-inch steel ball drops — essentially hail-proof for anything short of baseball-sized stones.

Product Line Breakdown

The Landmark line includes several variations, all using the same 13 1/4” x 38 3/4” dimensions with 5 5/8” exposure and requiring 3 bundles per square:

Standard Landmark Series

• Fire rating: Class A (highest rating)
• StreakFighter algae protection: 10-year warranty
• Dimensional design mimics natural wood shake
• Colors include Moire Black, Weathered Wood, Birchwood

Landmark Life Series

• Weight range: 219-238 lbs per square, approximately 73-80 lbs per bundle
• Same impact and fire ratings as standard line
• Enhanced aesthetic options like Resawn Shake

Hip/Ridge Accessories

• 12” x 36” full pieces provide 30 lineal feet coverage per bundle
• Weight: approximately 45 lbs per bundle
• Class 4 impact rating — highest available
• Color-matched to field shingles (Driftwood, Georgetown Gray available)

The difference between Landmark and Landmark Pro comes down to thickness and warranty coverage — Landmark Pro offers thicker material construction and a 30-year algae warranty versus the standard 10-year.

Montana Installation Reality

All Landmark products feature StreakFighter technology using copper-containing granules to prevent algae streaks. In Montana’s varying humidity zones — from the wet Libby area to the dry plains — this actually matters. Black streaks on a north-facing roof in the Flathead Valley aren’t just ugly; they’re a sign the shingles are breaking down faster than expected.

The real advantage shows up in the details. That NailTrak wide nailing zone means fewer callbacks for blow-offs. The QuadraBond layer adhesion prevents the delamination you see with cheaper architectural shingles after a few freeze-thaw cycles.

Skip these if you’re doing budget work or temporary structures. Three-tab shingles cost less and work fine for shops and sheds. But for a primary residence facing Montana weather? The extra money for proper architectural shingles with documented wind ratings pays itself back in fewer warranty calls and satisfied customers who don’t have shingles in their yard after every windstorm.

Frequently Asked Questions

Do Landmark shingles meet Montana’s snow load requirements?

At 219-240 pounds per square, Landmark shingles add minimal dead load to roof structures. Snow load calculations focus on the roof structure itself, not shingle weight. These shingles work fine on properly engineered roofs meeting local snow load requirements.

What’s the actual difference between Landmark and Landmark Pro?

Landmark Pro provides thicker material construction with enhanced features and extended warranty coverage — specifically a 30-year algae warranty versus Landmark’s standard 10-year coverage. For most Montana applications, standard Landmark delivers sufficient performance.

Is it possible to upgrade wind resistance after installation?

No. The 130 mph and 160 mph ratings require specific CertainTeed starter and ridge products installed with the initial roofing system. You can’t retrofit for higher wind ratings.

How do these handle ice dams?

The CertaSeal polymer adhesive locks shingle edges against moisture intrusion. Combined with proper ice and water shield installation, they resist ice dam damage well. But no shingle prevents ice dams — that’s an insulation and ventilation problem.

Are Class 3 impact ratings sufficient for Montana?

UL 2218 Class 3 rating handles most hail events in Montana. Unless you’re in a known severe hail corridor, Class 3 provides adequate protection without the premium cost of Class 4 products.