Modified an existing truss roof to make it a half hip truss set:
View model here:
https://3dwarehouse.sketchup.com/model.html?id=6e2633ca-ebb2-4597-87e9-ba41b47a636f
This will be my first venture into more complex truss systems. I figured I would cut my teeth on the half hip (Jerkin Head, Tudor Hip) truss set first before attacking the more complex full hip variants of which there are many.
After sketching this model up and examining the geometry I now have a number of questions:
1. Are my roof planes correct? Note that I have drawn the apex of the hip roofs at the edge of the last full truss and not at its centerline. Not entirely sure what is common practice in this regard.
2. I've shown some non-structural outlookers along the rake. What would the outlookers along the half hip portion look like?
3. If I use structural outlookers how would those be framed in over the hip section?
4. Does the apex of the half hip typically coincide with the next truss or could it land somewhere between trusses? ie. the half hip length is some multiple of the truss spacing.
5. Is the hip section usually the same pitch as the rest of the roof? There is really no reason why it has to be.
6. As the length of the half hip increases the depth of the gable end truss decreases as does the first inboard truss. What is the practical limit for the minimum depth of the first inboard truss?
7. Does anyone have some shop drawings of this type of truss set that I can study?
View model here:
https://3dwarehouse.sketchup.com/model.html?id=6e2633ca-ebb2-4597-87e9-ba41b47a636f
This will be my first venture into more complex truss systems. I figured I would cut my teeth on the half hip (Jerkin Head, Tudor Hip) truss set first before attacking the more complex full hip variants of which there are many.
After sketching this model up and examining the geometry I now have a number of questions:
1. Are my roof planes correct? Note that I have drawn the apex of the hip roofs at the edge of the last full truss and not at its centerline. Not entirely sure what is common practice in this regard.
2. I've shown some non-structural outlookers along the rake. What would the outlookers along the half hip portion look like?
3. If I use structural outlookers how would those be framed in over the hip section?
4. Does the apex of the half hip typically coincide with the next truss or could it land somewhere between trusses? ie. the half hip length is some multiple of the truss spacing.
5. Is the hip section usually the same pitch as the rest of the roof? There is really no reason why it has to be.
6. As the length of the half hip increases the depth of the gable end truss decreases as does the first inboard truss. What is the practical limit for the minimum depth of the first inboard truss?
7. Does anyone have some shop drawings of this type of truss set that I can study?
