Illustrated Companion to the Latin Dictionary/Materiatio

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

MATERIA'TIO. A collective term, including all the timber-work employed in the construction of a roof (Vitruv. iv. 2. 1.); arranged by the ancient architects in the manner exhibited by the annexed diagram (Materiatio/1.1), which represents a timber roof in elevation and section, from Gwilt's Encyclopedia of Architecture, and distributed into the following component parts: — a a. trabes, the beams which formed the architraves, supported upon columns and pilasters; b b. columen, the ridge-piece which forms the culminating point; c. columna, the king-post, which supports the central apex; d d. tigna, the tie-beams which extend transversely from side to side of the building, and across the architraves on which they rest; e. capreolus, the strut, placed diagonally between the king-post and rafter, the centre of which it supports; f f. canterii, the principal rafters of the roof, which form a bed for the purlines to rest upon; g g g g. templa, the purlines, which lie transversely over the rafters, and form a bed for the common rafters; h h. asseres, the common rafters, over which the tiles are placed.

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  Materiatio/1.1