By 1/3, if the overall height of my raise tie truss is 2.7m, then by the 1/3 rule then it shouldnt be more than 0.9m higher than the wall plate. If that is the case, my raised tie from the ground will be 3.8m which is 12.5ft.
If i raise my ridge height to 5.6m. 12block high is 2.7m. 100mm...