The Short Answer
Roofs is correct in modern standard English. Rooves is archaic, regional, or incorrect depending on who you ask. It's not a matter of preference anymore — it's a matter of knowing which variety of English you're writing for. Here's how I approach this. The plural of "roof" follows the standard rule: add -s. Roofs. That's it. The -ves spelling comes from a period in the 17th through 19th centuries when some writers started applying the same pattern as words like "loaf/loaves" or "wolf/wolves." It never caught on for "roof" the way it did for those words. You'll see "rooves" occasionally in old texts, some British dialect writing, and a surprising number of roofing contractor business names — probably because it looks fancier on a van decal. I ran into this at a literal crossroads. A client in Virginia sent me plans where the structural engineer wrote "roove replacements" in the spec sheet. Not "roof replacements." "Roove." I checked three subsequent documents — the submittals, the inspection checklist, the punch list — and every single one used "rooves." The GC on that job had been telling his guys all week they were installing "new rooves" on the jobsite trailers. I corrected the inspector during the framing walk-through without making it a big deal. Just said, "We spell it roofs in our shop drawings, want me to update this?" He did. Not a single conversation afterwards about it. These things just happen in this industry.
Now, the technical side. Merriam-Webster lists "roofes" as a nonstandard variant too, though it's rarer than "rooves." Oxford English Dictionary records both historical and current uses. Cambridge and Collins simply list "roofs" with no note about "rooves" being acceptable. In practice, this means if you're writing for a US audience or following standard professional documentation, "roofs" is the only defensible choice. UK English slightly more tolerant of alternatives, but even there "roofs" dominates in technical writing. One counter-intuitive thing people miss: the -ves spelling isn't actually wrong in every context. If you're transcribing oral testimony from a Cockney speaker, quoting a 19th-century document, or naming your company "Johnson's Quality Rooves" (which is a real thing apparently), then "rooves" is the appropriate form. But that's very different from using it in a project specification, insurance claim, or engineering report. I've also noticed that speech-to-text software consistently produces "rooves" when you say "roofs" aloud. This isn't a bug — it's the model picking up on the historical variant because it appears frequently in older training corpora. I found this out during a phone consultation where my transcription came back with "the damaged rooves need to be coated" and I had to go through and change every instance. It's a real issue if you dictate a lot of your specifications. Voice memo apps have the same problem. I switched to typing my spec language now instead of dictating, and it cut revision time on document rounds by maybe 20 minutes per project. Not huge, but noticeable over a year.
There's also a visual distinction that matters in drafting. When I'm reading a set of construction drawings, "roof" and "roofs" are almost identical on the page at small scale. "Roove" immediately stands out as wrong. My trick is to do a find-and-replace for "roove" before sending any documents out. Catches the spelling errors that slip through during late-night revision sessions. Usually the ones caused by autocorrect or voice input. Bottom line: use "roofs." It's what the dictionaries say, it's what the style guides say, and it's what everyone in the industry expects. Using "rooves" in professional documentation doesn't signal sophistication — it signals you copied it from somewhere without checking. I've seen it happen enough that I don't even blink at it anymore. Just fix it and move on. For reference, the Chicago Manual of Style, APA, MLA, and the US Government Printing Office style guide all prescribe "roofs." The only context where "rooves" survives naturally is in informal speech in certain parts of England, and even there it's declining. If you need a definitive source to cite, Merriam-Webster's entry for "roof" states the plural is "roofs" and lists "rooves" as nonstandard. That's about as clear as it gets.
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