Stone Shingles Metal Roofing

Wind Uplift Resistance (ASTM D3161/D7158 Class F/H)
Engineered for extreme weather, color-coated stone chip tiles achieve exceptional wind uplift resistance, typically meeting or exceeding ASTM D3161 Class F (110 mph) or the more rigorous ASTM D7158 Class H (up to 180 mph sustained winds), depending on profile, fastener type, and installation system. This high performance is achieved through a combination of factors: the inherent strength and rigidity of the high-density steel core, the precision-engineered interlocking side and end lap profiles, the strategic use of concealed or exposed clips (often in combination with fasteners), and crucially, proper installation following manufacturer guidelines. The interlocking mechanisms (hooks, ribs, seams) create a continuous, mechanically connected surface. When wind pressure tries to lift a tile, the load is transferred through these interlocks to adjacent tiles and ultimately to the clips and fasteners securing the assembly directly to the roof deck. This distributes the uplift forces across a large area, preventing individual tiles from peeling off.

This engineered wind resistance is a critical advantage, especially in hurricane-prone coastal areas, tornado alleys, or regions experiencing severe thunderstorms. Unlike asphalt shingles, which rely heavily on adhesive strips (which can fail in heat or cold) and nails, and can be vulnerable to peeling or tearing in high winds, the mechanical interlock and robust fastening of stone chip tiles provide a much more secure attachment. Similarly, while clay and concrete tiles are heavy, individual tiles can be dislodged if not meticulously fastened, and their weight becomes a liability in very high winds. The secure attachment system of stone chip tiles prevents blow-offs, which are a primary cause of catastrophic roof failure and water intrusion during storms. Meeting stringent ASTM D7158 Class H standards involves dynamic pressure cycling tests simulating hurricane-force winds, proving the system's ability to withstand not just sustained winds but also intense gusts and pressure differentials. This wind resistance provides homeowners with significant peace of mind and potential insurance premium benefits in high-wind zones.