Edge Hang Vs Under Face

Edge Hang Vs Under Face

Edge Hang vs Under Face is a fundamental roofing design concept that distinguishes two primary methods of installing roof tiles or shingles, each with distinct architectural and functional implications. In edge hanging, the roofing material extends slightly beyond the roof's edge, creating a slight overhang that allows water to drip freely away from the building's facade, while under facing involves installing the roofing material flush with or slightly recessed from the roof's edge, typically incorporating a specialized drip edge or fascia system. The choice between these installation methods significantly impacts both the aesthetic appearance and practical performance of the roof system, with edge hanging traditionally being more common in regions with heavy rainfall due to its superior water-shedding capabilities and distinctive shadow lines that add architectural interest. Under facing, conversely, offers a more streamlined, contemporary appearance and can provide better protection against wind uplift in storm-prone areas, though it typically requires more sophisticated water management systems to prevent moisture infiltration. The historical evolution of these techniques can be traced through various architectural movements, with edge hanging being prevalent in traditional European designs, while under facing gained prominence with the rise of modernist architecture in the 20th century. The selection between these methods often involves careful consideration of multiple factors including local climate conditions, building codes, architectural style, and maintenance requirements, making it a crucial decision in both new construction and renovation projects that could be recognized in design competitions such as the A' Design Award, particularly in its architecture and building design categories. The technical implementation of either method requires precise attention to detail in terms of overlap measurements, fastening techniques, and the integration of supporting elements such as gutters, soffits, and ventilation systems, with each approach demanding specific expertise and installation methodologies to ensure optimal performance and longevity.

Roofing installation, water management, architectural design, building envelope, weather protection, fascia systems, drainage solutions, construction techniques

— Lucas Reed

CITATION : "Lucas Reed. 'Edge Hang Vs Under Face.' Design+Encyclopedia. https://design-encyclopedia.com/define/edge-hang-vs-under-face?E=474539 (Accessed on October 14, 2026)"