Raised Tie Roof Truss

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.

Raised tie roof truss.

The roof design was made incredibly complicated as a result of the skewed wall along the boundary line maximising the building footprint. This type of truss is ideal for increasing the height of the room without needing to increase the overall height of the building. These trusses are the solution when the internal ceiling height is required to be higher than that of the wall plate. A raised tie roof truss is a truss where the bottom chord making up the triangle shape moves towards the top of the triangle.

A roof design gives the chance to extra floor space in the roof volume similar to a space or upper room space. The requirement for a vaulted ceiling combined with icf insulated concrete form wall construction added additional design difficulties. 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. Raised tie truss roof 0 11 w m2k u value 400mm cellulose insulation to sloped portion of truss 400mm cellulose insulation to flat portion of raised tie truss vcl airtight membrane to achieve 3 0 ac hr 25mm ceiling service cavity batten counter batten roof membrane extra over option.