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Roof trusses

Inverted truss

An inverted truss has its bottom chord sloping upwards away from the support, like a monopitch truss turned upside down.

Also known as inverted truss, inverted roof truss, double inverted truss, upside-down truss

The shape carries a roof or canopy outwards while the underside rises, for example over entrances, covered walkways, carports and deep eaves. A double inverted truss does the same on both sides of a central support.

Because much of the truss projects past its support, the design has to deal with cantilever forces and uplift, and the bearing details are critical.

Related terms
Monopitch trussA monopitch (mono) truss has a single sloping top chord, forming a roof that falls in one direction only. Overhang (eaves)The overhang is the part of the top chord that extends beyond the outside of the wall, forming the eaves of the roof. Truss typesRoof trusses come in many shapes, such as fink, mono, attic, scissor and girder trusses, each suited to a different roof form, span or use of the roof space.
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