Plural of “roof”

The plural of roof is roofs (some dictionaries also accept rooves).

Why

"Roof" comes from Old English "hrof," a native Germanic word describing the covering of a building. Despite being native and ending in -f like "wolf" and "leaf," which historically shifted to -ves plurals through a Middle English voicing pattern, "roof" largely resisted that shift, and the standard modern plural remains "roofs." The original Old English word could also mean "ceiling" or even, more abstractly, "top" or "summit," a broader sense that has narrowed over the centuries to specifically mean the covering structure of a building.

"Rooves" does exist as a genuine, if now old-fashioned or regional, variant, particularly in older British and Australian usage, showing that the word came close to following the same path as "wolf/wolves" without ever fully completing it in mainstream standard English; most style guides today treat "rooves" as nonstandard or archaic rather than as an equally valid alternative.

Usage note

"Roofs" is the standard, expected plural in virtually all modern writing, everywhere from construction and real estate to casual conversation. "Rooves" may appear in older texts or some regional dialects but will read as unusual or dated to most contemporary readers.

Construction and real-estate industries rely on "roofs" constantly in technical and legal writing, from building codes specifying minimum roof pitch to insurance policies detailing coverage for storm damage, a register where the word's plural form appears with far more precision and frequency than in ordinary conversational English. The figurative phrase "under one roof," describing people or things brought together in a single place, keeps "roof" fixed in the singular regardless of how many people or how large the building actually is, treating the word here as a symbol of shared shelter rather than a literal countable structure. The idiomatic phrase "raise the roof," meaning to celebrate loudly, keeps "roof" singular regardless of context, treating the structure as a fixed symbolic ceiling to be figuratively lifted by noise and energy.

Common real mistakes

Writers occasionally reach for "rooves" believing it's simply the more traditional or correct form by analogy with "wolves" and "leaves," but that analogy doesn't hold up in standard modern usage — "roofs" is overwhelmingly the safer, more expected choice. A separate point of confusion involves the compound verb "to roof," meaning to install roofing material, whose third-person singular "roofs" ("he roofs houses for a living") is spelled identically to the plural noun but functions as a verb.

The wider pattern

"Roof" is one of the clearest examples of a native English -f noun that only partially, and inconsistently, followed the historical -f-to-ves shift, leaving behind a fading minority variant ("rooves") rather than settling cleanly on one side the way "wolf" and "chief" each did.

Examples

• Several roofs were damaged in last week's hailstorm.
• The contractor replaced the roofs on all six units.
• Solar panels now cover many roofs in the neighborhood.
• The old barn roofs had begun to sag noticeably.
• Workers repaired the leaking roofs before the rainy season.
• The photograph showed rows of red-tiled roofs from above.
• New building codes require stronger roofs in hurricane zones.
• The town's oldest houses still have their original slate roofs.
• Snow accumulated heavily on the flat roofs downtown.
• The inspection found cracks in two of the warehouse roofs.
• Contractors compared bids to replace the aging roofs.
• The storm tore shingles off several roofs downtown.
• Volunteers repaired roofs damaged in the flood.
• The city offers grants to fix aging roofs.
• Green roofs are becoming common on new office buildings.
• The inspector flagged loose tiles on two roofs.
• The crew finished reroofing both houses before nightfall.
• Rainwater pooled on the flat roofs after the storm.
• New solar shingles replaced the roofs on the block.