Wind brace
Wind braces, in architecture, are diagonal braces to tie the rafters of a roof together and prevent racking. In the better sort of medieval roofs they are arched, and run from the principal rafters to catch the purlins.
References
- Attribution
- This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed (1911). "Wind Braces". Encyclopædia Britannica. 28 (11th ed.). Cambridge University Press. p. 708.