Split Shake

Superior Wind Resistance
Mechanism: The interlocking design creates a continuous, monolithic surface. Each tile is mechanically fixed to the batten, and the interlocking sides prevent wind from getting underneath and lifting them.

Benefit: This makes interlock tiles exceptionally resistant to high winds, cyclones, and hurricanes, often achieving the highest possible wind ratings (e.g., ASTM D3161 Class F – up to 110 mph winds or more).

Enhanced Weatherproofing and Water Resistance
Mechanism: The precise interlocking joints create a tortuous path for water. For water to penetrate, it would have to travel upwards and sideways against gravity and overlapping barriers.

Benefit: Provides excellent protection against driven rain and water ingress, reducing the risk of leaks.

Lightweight Construction
Mechanism: Most modern interlocking tiles are made from lightweight materials like polymer-coated steel or composite materials, unlike traditional heavy concrete or clay tiles.

Benefit:

Easier Installation: Tiles are lighter and often larger, covering more area faster.

Structural Savings: The reduced load means existing roof structures may not need reinforcement, and new builds can use lighter (and cheaper) framing members.

Durability and Longevity
Mechanism: High-quality interlock tiles are engineered for durability.

Metal Tiles: Feature layers of corrosion-resistant coatings (like Galvalume steel) and durable stone-chip coatings

Composite Tiles: Are made from a blend of materials like polymer, rubber, and stone for impact resistance and longevity.

Benefit: They are highly resistant to fading, cracking, corrosion, and impact from hail. Lifespans of 50 years or more are common, often backed by long warranties (30-50 years).

Design Versatility and Aesthetics
Mechanism: Advanced manufacturing allows tiles to mimic the appearance of traditional roofing materials like wood shakes, slate, and classic clay tiles with remarkable realism.

Benefit: Homeowners can achieve a high-end, desired aesthetic (e.g., a cedar shake look) without the associated maintenance, weight, or cost of the natural material.

Low Maintenance
Mechanism: The durable, coated surfaces resist algae, moss, and fungal growth. The interlocking system is also very stable.

Benefit: Unlike wood or concrete tiles that may require periodic sealing or cleaning, interlock tile roofs typically only need occasional rinsing to maintain their appearance.

Energy Efficiency
Mechanism: Many systems offer “cool roof” options. Light-colored coatings and special reflective pigments are designed to reflect solar radiant heat rather than absorb it.

Benefit: This can significantly reduce cooling costs in warm climates by lowering the heat transfer into the attic space.