Photograph of the Roof Framing in the Bequet-Ribault House in Ste Genevieve MO

The Norman Truss which supports the roof. Note how the rafter poles for the gallerie tie-in. The Bequet-Ribault House was built c. 1793 near Ste. Geneviève, Missouri. It is one of three poteaux-en-terre buildings that survive.

A rafter is one of a series of sloped structural members, that extend from the ridge or hip to the downslope perimeter or eave, designed to support the roof deck and its associated loads.[1]


A type of beam, which supports the roof of a building. In home construction, rafters are typically made of wood. Exposed rafters are a feature of traditional roof styles.


In many buildings, rafters have been replaced by engineered trusses (trussed rafters), normally because of span limitations and/or roof load (weight from above).

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