hip angles for roof faces of differing pitches

[marshigh]

Is there an easy way to figure out the precise angle (in plan view) of two roof faces that come together at a hip, when the pitch of one of the roof faces differs from the adjacent one?

There is probably a mathematical equation I should know?.

But is there also VectorWorks trick or shortcut that does it for you?

Thank you.

Mark

[CipesDesign]

My method would to draw it in section. Doing so should make everything pretty clear... There are some who prefer doing the math, but I am very visual anfd prefer to draw the geometry...

[marshigh]

I usually intersect the two planes (pitches) and look at it in a side view, then plot (with guide lines) the location of the intersection. Then transfer that to plan view, and draw (with a guide line) the resulting hip (or valley). I then edit the two planes shaping the edges to fit. I then take my diagonal guideline (representing the hip/valley) and move it around to all the corners where the same roof pitches meet.

[marshigh]

Just thought there could be a trick or shortcut that I wasn't aware of.

[CipesDesign]

There is one cool trick: you can use the Connect Combine tool , in the appropriate mode, to join two roof faces. It still doesn't tell you the pitch but it's a pretty fast way to make the geometry happen. After that you can cut a section and take a look.

[bc]

Not sure which angle you need but could you use the roof framer and call out to create hips? That will give you the pitch and the rotation.

[Guest Wes Gardner]

There's a pretty cool tool called Rafter Tools for both web and smart phone

[taoist]

Is there an easy way to figure out the precise angle (in plan view) of two roof faces that come together at a hip, when the pitch of one of the roof faces differs from the adjacent one?

There is probably a mathematical equation I should know?.

But is there also VectorWorks trick or shortcut that does it for you?

Thank you.

Mark

Here is a link to software that essentially tells you everything.

http://www.roofconstruction101.com/

Youtube video showing the software -