how to draw a Descending Roof slope.

[buzzsaw204]

hi,

 

how can draw a Descending Roof, front gable is 8/12 and descend to a 4/12 rear gable?

 

thank you.

[Renerabbitt]

Draw your roof baseline at an angle to the house and then cut the ends to your overhang spec. I think you may also have to change the baseline angle 

[Alaskan_Son]

Are you talking about something like this?

 

[GeneDavis]

/@buzzsaw204 your image shows a roof shape that has a common fascia height, as it descends in pitch from 8/12 to 4/12.  A roof thus built has twisted surfaces, not planar, and I do not believe Chief can model this for you unless you segment the roof.

 

I used Sketchup and drew a 24 x 24 footprint with warped roofs to model what you show in your image.  I triangulated each 24" rafter bay to be able to get the app to show surfaces.  One of the images clearly shows the warp or twist in the roof.  Chief can do this if you model each triangular plane and place them all, but it is tedious.  It is impossible to texture to get a seamless shingled look, because the baselines all differ as you move along the line of the fascia edges.

[buzzsaw204]

20 minutes ago, Alaskan_Son said:

Are you talking about something like this?

 

YES!! exactly that.

 

is this using CA - Roof Plane...??? or manually drawn by some other method?

[GeneDavis]

Look carefully at the shingled texture in Michael's images, and compare to my triangular poly surfaces.

[SHCanada2]

i tried to convince a truss guy to do this for my own new attached garage in order to avoid a window at the ridge. He wasnt buyng what I was selling

 

In the end I built the walls shorter as they went towards the house. but I only needed inches not feet 

 

So if this is going to be trussed, you might want to ask the truss guy if he will build it like that

.

[Alaskan_Son]

40 minutes ago, buzzsaw204 said:

YES!! exactly that.

 

is this using CA - Roof Plane...??? or manually drawn by some other method?

 

Multiple roof planes pretty much exactly as Gene described.  You essentially need to create a wire frame of using the ridge, the fascia, and the rafters.  You can fill it in with either Roof Planes or Faces.  You can also optionally play with using a Terrain.  You may want to check out this thread:

 

[Ed_Orum]

Thanks, I didn't think it was something Chief could handle, but I wanted to check anyway.