You may be replying to someone who has read many ‘old’ books and become accustomed to the spelling ‘rooves’. They may also have a different cultural background to yourself. In the UK, for example, ‘rooves’ seems to be more common than in the US.

Thanks for letting me know. The "AFAIK" I put there seems very apt! I am more familiar with the US than the UK, in fact.

That's because you DKVF :-)

It's unusual an dated in the US but unexceptional in the UK.

I've never seen anyone spell it "rooves" in the UK. It's roofs.

Hilariously, someone tried to petition parliament to change the spelling. It was rejected (quite understandably) because

"The UK Government or Parliament is not responsible for setting the "official spelling" of words."

https://petition.parliament.uk/archived/petitions/268579

What does DKVF stand for?

Guessing it's play on AFAIK = as far as I know

DKVF = don't know very far?

Yes, that's what I meant.

I'm a brit :)