How to stop Shed roofs finishing above ceiling height: Split level challenges

[AusRobK]

Thank you for the already great content in this resource. I have already found some absolute gems on here which have helped greatly. In this (my first) plan I am replicating a current house in preparation for renovation plans.

A quick summary of the project: a Split level home on a steep-ish slope, with mainly shed shed roofs and a mix of cathedral ceilings. See photo. The room abutting the retaining wall has a single shed roof joining the larger into a gully, not as the plan has generated. 

My process to arrive here thus far: 1. develop terrain and elevation profile including retaining wall the house backs against. 2. First floor with 3.3m ceilings at 0m elevation. 3. Split level to rear of house 1640mm above the ground floor. 3. 2nd floor on top of back half of 1st floor (screenshot004 shows the ceiling profile). 4. Attempts to build stairwell joining all 3 (on hold till I fix the roof and wall lines). 

My request for help here: To know why I'm breaking the required clean roof lines and how to resolve it. I'm seeing a few options. Something is wrong with the half height walls used as external, as they are not getting the roof to drop to the required level (examples in screenshots 6 and 7). This is also impacting how I build the single, large shed roof instead of the 2 being generated as per screenshot 5. I suspect my use of the half height walls, or the roof pitch management across multiple levels.  

 

Any guidance/ support would be greatly appreciated. I've been working on the software and living on the forums for a few days to build this but feel there are several fundamentals I need to adjust here which should ensure a smoother process forward. 

Thanks in advance,

Rob

Current State 1.plan

[solver]

Roofs build over rooms, so to control roof heights, move the ceiling in the room below up or down.

 

Half height walls do not influence the roof.

[AusRobK]

Thanks Eric and apologies have updated the profile. I have HD Suite only at this stage. 

The ceiling height for this room was set to the highest point required in each individual floor/ level, in the ground floor for example this is 3.3m  (~11foot). I adjusted this to the lowest required section in each level/ room. Doing this and re-drawing got me closer. Do you have a thought on what is causing this side to behave like this?

 

Current State closer.plan

[AusRobK]

Interestingly correcting all the external walls did this to the re-build of roofs. 

[AusRobK]

Hi Eric/ Others, 

I Assumed that I had made a few mistakes in basic layout, ie adding internal walls before the roof and other elements were sorted. So I started again and got most of the issues nailed .I know that the heights aren't right and this is based on the ceiling structure being fixed at 318mm (I now know this is a version thing). 

Attached below are the results. I need to finish the roof with a butterfly arrangement of the outbuilding section to the rear (line on graphic indicates the valley/ box gutter).

I have downloaded examples from the help pages (attached) and made all the same changes (dual walls, hip configuration etc. At the final hurdle I change the wall indicated to an arrow to a gull gable wall, and it breaks the whole roof line. Any suggestions? 

Untitled 4.plan

butterfly_example.plan

[Jo_Ann]

You still are not saying what version of Suite you have.
The main rear wall of the house is set as a railing?!
It is very confusing what you want the roof to look like.  Is it pic 1, pic2, or neither?
In your pic of the real house, the outbuilding section on the rear, doesn't look like either of these roof pics.

 

          

[DavidJPotter]

I am guessing that Jo_Ann is doing something you are NOT: mainly using "Temporary Walls" to help guide the software to a desired result. You temporarily get rid of any interior walls (rooms) that are misleading the roof generator and use only those walls and enclosed spaces that can lead the roof generator to your desired result. Once the roofs are correct you NEVER THEREAFTER use Auto build roofs and when roofs are correct you can then replace all interior walls as you wish.

 

DJP

[AusRobK]

Eric - apologies this should be sorted now.

Hi Jo_Ann, thanks for your post; your second image posted is exactly what I'm trying to achieve. 

DJP and Jo_Ann, please see below for the structure layout inside the attached plan. I have corrected the half height wall. this was a learning error. Please also see where I have added the temporary walls per the butterfly examples and your comments DJP. 

The top wall is set as the high shed/ gable. sides are full gable, the second "hidden wall" is set as a hip. When generating this I get the missing roof as illustrated above, and the difference in result between the wrong roof, and "no roof" is the right hand wall being set from Hip to full gable. Does this narrow down the issue at all?

 

Untitled 4.plan

Edited April 15, 2020 by AusRobK
add file

[AusRobK]

Further update - I broke the main gable walls between the 2 rooms, and deleted the gap. This got me the roof shape but the engine built a gabled roof on the ground as shown. Rebuilding the walls has no impact as I would then have to rebuild the roof. 

I would love to understand how you worked your magic on that sample Jo_Ann! I am close but so far, I feel. 

 

[Jo_Ann]

If you raise the 'build roof' pitch to 14°, that will allow you to raise the 2nd floor ceiling back to 2300mm.
The front wall shed roof looks steeper, so I raised that to 22°.  
To better display the split levels,  floor 1 (2 levels) walls are beige colored.
The 2nd floor is white.
The attic walls are green.

 

[AusRobK]

Hi Jo_Ann, 

Thank you - I got close enough with your feedback. I checked a few settings and think they were to do with floor/ foundation levels in the temporary room. 

If I had the opportunity I would ask about the artifact showing on the wall - There is nothing protruding from the inside as this looks perfect. 

Can I also whether the individual roof plane pitch adjustment is possible on my version, as I didn't think it was with Suite 2021. If you are working with manual pitch adjustments on the walls, if you could provide an example screenshot of those wall settings that would be amazing. On previous searches of the Q&A I saw that this was for variable pitch on a single roof, as opposed to a single adjustment along the plane. 

Thanks so much,

Rob

[LawB10]

AusRobK,

 

That's it, what Jo_Ann has done, is as far as you can go for that design. What's left for you to do is add fixtures, materials etc:

 

If you keep tweaking and changing the design, it makes it difficult to achieve the design you want.

 

In this example you change the roof from a shed to a butterfly, when it's clear that not what the roof is.

 

The first floor side walls are gabled, the second floor is a shed roof and the back room has a barrel roof, also there

seems to be a porch with a flat roof.

 

You were given clear instructions on how to build what you wanted. That's it, it's done...

[Jo_Ann]

Fix the 2nd floor wall, then rebuild roof.

[AusRobK]

Jo-Ann, Thank you so much for your help, it's very much appreciated. I've learned a lot in the last 36 hours.