South building of the Nunnery Quadrangle at Uxmal.
 | The Puuc corbel vaults are not true vaults because
they lack a key stone at the top and the boot shaped stones have no
bearing surface.
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Puuc Vault at Uxmal. |
Section through vault showing boot
shaped stone
veneer.
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| The stones that make up the Puuc vault
have a distinctive boot shape, with an inclined
outer face that matches the interior angle of the vault sofit.
A tapered tendon anchors the stone in the vault mass. |
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