2026-09-28T10:16:13+01:00https://marinefinds.org.uk/datalabs/terminology/object/format/jsonhttps://marinefinds.org.uk/datalabs/terminology/object/format/xmlhttps://marinefinds.org.uk/datalabs/terminology/object3502138341TIEBEAMYA major horizontal timber spanning a roof space to connect a pair of principal rafters and prevent them spreading.546P