Roofing is the work of building or repairing the top covering of a building that protects everything inside from rain, snow, wind, and sun. When workers do roofing, they might lay down shingles (overlapping pieces of material that shed water), install metal panels, or fix leaks in an old roof.

Roofing is skilled, demanding work that requires careful attention to detail. A poorly installed roof can leak and cause serious damage to a home, while a well-built roof can last decades. Roofers work in all kinds of weather, often on steep slopes high above the ground, carrying heavy materials and using specialized tools.

The materials used in roofing vary widely depending on climate, budget, and style. Asphalt shingles are common in American suburbs, clay tiles appear on many Mediterranean-style homes, and metal roofing has become popular for its durability. Some historic buildings still have slate roofs that have lasted over a century.

When someone says they're “getting their house re-roofed,” they mean having the old roofing materials removed and replaced with new ones, which is one of the most important investments a homeowner can make.