So, you probably know that the roof is the top part of a house but what if you went through the roof?
As a person, it would mean you were very angry. You could also hit the roof. You'd be just as angry and probably hurt yourself too!
If prices go through the roof, they have risen very quickly and by a large amount.
Today's story is all about roofs. Do you know what a thatched roof is?
If not, you are about to find out.
Just think Margaret Thatcher's ancestors would have been thatchers - people who make thatched roofs.
Here's a video that explains it with some traditional English folk music - sorry about that!