page_title: List of Greek and Roman architectural records
section_title: Roofs
hierarchical_section_title: List of Greek and Roman architectural records / Roofs
caption_attribution_description: English: Parthenon in Athens (Attica, Greece) Русский: Парфенон в Афинах (Аттика, Греция)
context_page_description: The list of ancient architectural records consists of record-making architectural achievements of the Greco-Roman world from c. 800 BC to 600 AD.
context_section_description: The largest post and lintel roof by span spanned the Parthenon in Athens. It measured 19.20 m between the cella walls, with an unsupported span of 11.05 m between the interior colonnades. Sicilian temples of the time featured slightly larger cross sections, but these may have been covered by truss roofs instead.
  The largest truss roof by span covered the Aula Regia (throne room) built for emperor Domitian (81–96 AD) on the Palatine Hill, Rome. The timber truss roof had a width of 31.67 m, slightly surpassing the postulated limit of 30 m for Roman roof constructions. Tie-beam trusses allowed for much larger spans than the older prop-and-lintel system and even concrete vaulting: Nine out of the ten largest rectangular spaces in Roman architecture were bridged this way, the only exception being the groin vaulted Basilica of Maxentius.
caption: Parthenon in Athens
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