Roof Truss Raised Tie

This is a picture of another way of framing a roof a heavy timber truss at very wide spacing.

Roof truss raised tie.

The raised tie roof truss design can go up against different style that when nitty gritty right can ooze a cutting edge feel. 400mm cellulose insulation to flat portion of raised tie truss. The requirement for a vaulted ceiling combined with icf insulated concrete form wall construction added additional design difficulties. Vcl airtight membrane to achieve 3 0 ac hr.

400mm cellulose insulation to sloped portion of truss. The roof design was made incredibly complicated as a result of the skewed wall along the boundary line maximising the building footprint. A raised tie roof truss is a truss where the bottom chord making up the triangle shape moves towards the top of the triangle. These trusses are the solution when the internal ceiling height is required to be higher than that of the wall plate.

As you can imagine the tension is getting up there. As the rafter tie is raised it puts a bending load on the rafter at the point of connection the rafter needs to be deeper as the tie is raised. The raised tie roof truss imposes a horizontal load onto the wall plate and wall when loaded. 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.

25mm ceiling service cavity batten counter batten roof membrane extra over option.