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How to slope a roof 2 ways?

16 ANTWORTEN 16
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Nachricht 1 von 17
dcsank
1289 Aufrufe, 16 Antworten

How to slope a roof 2 ways?

I need to slope a roof 5 degrees one way and 5 degrees the other. When I try to do this with define slopes, it creates a ridge or hip where the 2 slopes meet. I want the whole roof to continually slope in both directions. It has to be roof because its actually a canopy system and I'm using curtain walls and I need the curtain wall grids to still be 3' orthogonally apart from bird's eye view

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Nachricht 2 von 17
EATREVITPOOPCAD
als Antwort auf: dcsank

5 percent = 0.6" / 12"

 

To do this do the following:

 

  • Architecture tab -> Roof button -> select level -> draw a rectangle
  • Select 2 of the lines and uncheck the Define Slope checkbox
  • select the lines you DID NOT select in the previous step, and enter a slope of  0.6" / 12" in the properties (It will change it into a fraction after you enter)

EATREVITPOOPCAD_0-1648572831287.png

 

 

 

 

The definition of insanity is doing the same thing over and over again and expecting different results
Nachricht 3 von 17
dcsank
als Antwort auf: EATREVITPOOPCAD

Yea this exactly what I did at first. It creates a ridge or hip where the 2 slopes meet (also 5 degrees can simply be entered as 5 in slope). So imagine a plane - I tilt it 5 degrees one way first then tilt the whole thing again 5 degrees in the other direction - this is what I'm trying to achieve

Nachricht 4 von 17
EATREVITPOOPCAD
als Antwort auf: dcsank

Ah I see, Thanks for teaching me about the % input never knew!

 

I would create an in-place mass (or a plane technically) and then use the roof by face command.

 

EATREVITPOOPCAD_0-1648573577932.png

 

 

The definition of insanity is doing the same thing over and over again and expecting different results
Nachricht 5 von 17
dcsank
als Antwort auf: dcsank

I think I just found out how to do this although the gridlines don't look precisely orthogonal. I followed a reply here: https://forums.autodesk.com/t5/revit-architecture-forum/roof-slope-in-2-directions-with-the-same-ang... with the crazy equation = 2*tan(8.0°)/SQRT(2) and I changed it to 5 degrees. Then I had to rotate the gridlines 45 degrees. Works but if someone else has a better solution let me know - thanks

Nachricht 6 von 17
ToanDN
als Antwort auf: dcsank

Create a bigger roof rotated 45 degree with one way slope, enter this formula to the slope =5*pi()/180*sqrt(2) , then use a vertical opening to cut it to shape.

 

ToanDN_0-1648580707643.png

 

 

ToanDN_0-1648574016582.png

 

Nachricht 7 von 17
RDAOU
als Antwort auf: dcsank

@dcsank 

 

See GIF below

Use a Mass in Place >> Apply roof by Face

 

 

Roof_2 Slopes.gif

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Nachricht 8 von 17
barthbradley
als Antwort auf: dcsank

You might have an easier go of it using the Roof by Extrusion Method.  Food for thought.

 

 

Create a Roof by Extrusion | Revit 2020 | Autodesk Knowledge Network

 

 

Nachricht 9 von 17
dcsank
als Antwort auf: dcsank

I know need to slope the roof 5 degrees in one direction and 10 degrees in another. I still want to create the roof like I outlined in my last response but need a different formula.

Nachricht 10 von 17
barthbradley
als Antwort auf: dcsank


@dcsank wrote:

I know need to slope the roof 5 degrees in one direction and 10 degrees in another. I still want to create the roof like I outlined in my last response but need a different formula.


 

Can you be a little more descriptive? Explain what you are trying to do now.  Maybe include some pictures.  

Nachricht 11 von 17
dcsank
als Antwort auf: dcsank

I made exactly what I want in terms of sloping in a roof using simple trigonometry for inputs for the points below but this can't be changed to a slope glazing type. So now I need a formula that can do this to use as slope within the footprint edit tool

 

dcsank_0-1658849421570.png 

 

 

Nachricht 12 von 17
barthbradley
als Antwort auf: dcsank


@dcsank wrote:

I made exactly what I want in terms of sloping in a roof using simple trigonometry for inputs for the points below but this can't be changed to a slope glazing type. So now I need a formula that can do this to use as slope within the footprint edit tool

 

dcsank_0-1658849421570.png 

 

 


 

Within the footprint sketch? Why don't you make a parametric Mass to Host the Sloped Glazing to? 

 

Sloped Glazing 726-1.pngSloped Glazing 726-2.png

Nachricht 13 von 17
ToanDN
als Antwort auf: dcsank


@dcsank wrote:

I made exactly what I want in terms of sloping in a roof using simple trigonometry for inputs for the points below but this can't be changed to a slope glazing type. So now I need a formula that can do this to use as slope within the footprint edit tool

 

dcsank_0-1658849421570.png 

 

 


If you already have the roof above modeled, then simply create an in-place mass surface based in that roof, then create a curtain system by face from the mass surface.  If you don't know how, share the file here.

 

ToanDN_0-1658867894225.png

 

Nachricht 14 von 17
Sidetracked
als Antwort auf: dcsank

A simple work around is to create a floor with the same properties, materials etc as the roof then use modify sub elements to add calculated elevations to the corner points.

Nachricht 15 von 17
colinqBYUV9
als Antwort auf: dcsank

Simplest way by far is to include a slope arrow. No need for anything tricky, just need to know the pitch angle and the direction of the pitch.

 

colinqBYUV9_0-1689049445119.png

 

Nachricht 16 von 17
Sidetracked
als Antwort auf: colinqBYUV9

Very hard to do with a slope arrow if you are wanting two different pitches and the roof is rectangular not square. Didn't realise but you can edit a roof the same way as a floor by way of modifying sub elements.

Nachricht 17 von 17
SteveKStafford
als Antwort auf: Sidetracked

Saw your replies and then realized this thread is almost exactly a year old :leicht_lächelndes_Gesicht: I was thinking the same thing with a slope arrow. I just experimented with slope values until the slope annotation reported 5 degrees (really 4.96 but rounded off). For a rectangular roof (not square) we'd just have to calculate the fall for each side that "mattered" and then plot out the slope arrow in the direction the roof would "fall". A bit tedious but doable.


Steve Stafford
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