Use "barrel vault" in a sentence

1. 13 It has a fine room with a barrel vault.

2. 16 The hall was covered by an intersecting barrel vault and was divided into three bays.

3. 18 The naos has a painted barrel vault and the pro-naos a flat-timber roof.

4. 29 Inside, the crossing piers are cut back and a wooden barrel vault extends across all four arms of the cross.