Raised Tie Roof Truss

The requirement for a vaulted ceiling combined with icf insulated concrete form wall construction added additional design difficulties.

Raised tie roof truss.

Raised tie trusses are used to provide a higher ceiling line for extra headroom. Unlike the conventional truss which is fully triangulated by virtue of its bottom chord fixing the top chords together the raised tie roof completes its triangulation at the flat ceiling to sloping ceiling intersection. The roof design was made incredibly complicated as a result of the skewed wall along the boundary line maximising the building footprint. Unlike other trusses which support on the ceiling tie the bottom chord raised tie trusses are supported partway up the lower end of the rafters.

A roof design gives the chance to extra floor space in the roof volume similar to a space or upper room space. These trusses are the solution when the internal ceiling height is required to be higher than that of the wall plate. This type of truss is ideal for increasing the height of the room without needing to increase the overall height of the building. A raised tie roof truss is a truss where the bottom chord making up the triangle shape moves towards the top of the triangle.