thermal movement metal flashings steep slope

The Sliding Metal Skin: Coefficient of Thermal Linear Expansion, Continuous Cleat Hems, and Slip-Joint Mechanics on High-Altitude Shingle Roofs

• October 3, 2026
• admin

In high-altitude hill stations across peninsular India—including Munnar, Ooty, Kodaikanal, and the higher elevations of the Western Ghats—steep-slope roofing envelopes operate in an extreme thermal regime. Unlike the relatively stable, warm coastal lowlands, high-elevation mountain sites experience severe diurnal temperature swings: During clear, dry winter mornings, direct high-altitude ultraviolet and solar radiation heat dark architectural …