peak or ridge or ridge cap
A pointy part of a church roof is called a steeple. Steeples are tall structures that rise above the roofline and often serve as a focal point for the building. They are commonly found on churches and other religious buildings.
To help the rain water drain off easier.
The pointy bit at the top
its the pointy bit
It was a regular flat roof. Around the edge was a pointy barrier to keep the birds off.
It's pointy
It's backwards, and that pointy bit be the other way up.
The Pointy Bit and the eye of the needle...
pointy shells
It could be an irregular pentagon - a bit like a child's drawing of a house with a roof.
It is an irregular pentagon - a bit like a child's silhouette of a house with a pitched roof.
it is the roof that is what on the top a roof