Barrel roof

A barrel roof is a curved roof that, especially from below, is curved like a cut-away barrel. They have some advantages over dome roofs, especially being able to cover rectangular buildings., due to their uniform cross-section. A barrel roof is a curved roof that, especially from below, is curved like a cut-away barrel. They have some advantages over dome roofs, especially being able to cover rectangular buildings., due to their uniform cross-section. Barrel vaults are a particular form of barrel roof.